{"title":"Amplifer","description":"","products":[{"product_id":"doukaudio-com-nobsound-ns-08e-mini-vacuum-tube-headphone-amplifier-hifi-desktop-stereo-audio-preamp","title":"Nobsound P32 Mini Vacuum Tube Headphone Amplifier Desktop Preamp","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli data-sourcepos=\"7:1-8:375\"\u003e\u003cspan\u003ePowerful Output for Any Headphone: With up to 1000mW of power, the P32 easily drives everything from sensitive earbuds to large gaming and high-impedance headphones (24-600Ω). You'll hear loud, clear, and dynamic sound, finally unlocking what your headphones are truly capable of.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli data-sourcepos=\"10:1-11:291\"\u003e\u003cspan\u003eAlso a Tube Preamp to Boost Your Speakers: Connect from 3.5mm jack and use P32 as a stereo tube preamp to add warmth and character to your desktop active speakers or a home power amplifier. P32 provides a significant upgrade to your entire sound system.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eWarm, Rich Tube Sound: Instantly upgrade your computer or phone's audio with the warm, smooth sound of vacuum tubes. The P32 makes your music feel richer and vocals clearer, bringing new life to your favorite songs, allowing music lovers to hear more detail without any distracting background hiss. \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli data-sourcepos=\"16:1-17:287\"\u003e\u003cspan\u003ePlug-and-Play with All Your Devices: The P32 works with various sources, featuring both RCA and 3.5mm AUX inputs to connect with your PC, phone, TV, or tablet. For your headphones, it has both 3.5mm and 6.35mm jacks, so you'll never need to search for an adapter again.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli data-sourcepos=\"19:1-20:295\"\u003e\u003cspan\u003eFuture-Proof Customizable Sound: This is a headphone amp that can grow with you. For those who like to experiment, the vacuum tubes and op-amps are swappable, allowing you to easily tweak the sound. You can explore the HiFi world at your own pace without needing to buy a new device.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eWarm tips\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e1. Please use the supplied DC 5V\/2A power adapter to ensure optimal performance of the P32. If using other power supply, make sure it provides at least 2A current. Otherwise, the P32 may not function properly. \u003c\/div\u003e\n\u003cdiv\u003e2. The RCA and AUX inputs, as well as the 3.5mm and 6.35mm outputs, work at the same time. Please don’t connect the two inputs at the same time, or else audio signals will be mixed.\u003c\/div\u003e\n\u003cdiv\u003e3. P32 adopts 2PCS pluggable NE5532 op-amps, which can be upgraded by LME49720NA-DIP-8 or any other dual op-amp in an 8-pin package with an output current exceeding 50mA.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e4. \u003c\/span\u003e\u003cspan\u003eP32 adopts pluggable tube socket, default 6J5 vacuum tubes, can be replaced by 6J1, 5654, 6AK5, EF95 etc. For a full list of compatible tube models, please refer to the user manual.  \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e5. P32 can easily drive all headphones even with high-impedance such as HD580\/HD600\/HD650\/K701\/K702\/Q701\/DT880\/T70\/T90\/SR225\/SR325\/RS1e etc.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli data-end=\"1965\" data-start=\"1626\"\u003e\u003cspan\u003eBrand: Nobsound \u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-end=\"1965\" data-start=\"1626\"\u003e\u003cspan\u003eModel: P32\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-end=\"1965\" data-start=\"1626\"\u003e\u003cspan\u003eAudio input: Stereo RCA\/3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-end=\"1965\" data-start=\"1626\"\u003e\u003cspan\u003eAudio output: 3.5mm\/6.35mm headphone jack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-end=\"1965\" data-start=\"1626\"\u003e\u003cspan\u003eOutput power: ≥1000mW (32Ω)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-end=\"1965\" data-start=\"1626\"\u003e\u003cspan\u003eMatched headphone impedance: 24-600Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 20-30KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: ≥ 110dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOutput voltage swing: 24V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput voltage: DC 5V\/≥ 2A (5.5*2.5mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 78*82*32mm \/ 3.07*3.23*1.26in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 135*85*90mm \/ 5.31*3.34*3.54in \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 220g \/ 0.48lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 400g \/ 0.88lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003ePacking list\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1* P32 Headphone Amp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2* 6J5 Tubes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* DC 5V Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47406902149352,"sku":"XZ-P32-US","price":46.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406902182120,"sku":"XZ-P32-UK","price":46.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406902214888,"sku":"XZ-P32-DE","price":46.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406902247656,"sku":"XZ-P32-AU","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406902280424,"sku":"XZ-P32","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/XZ-P32_1_1.jpg?v=1760926420"},{"product_id":"doukaudio-com-nobsound-ns-10g-mini-bluetooth-5-0-digital-amplifier-hifi-stereo-audio-bass-amp-50w-50w","title":"Nobsound NS-10G Mini Bluetooth 5.0 Digital Amplifier HiFi Stereo Audio Bass Amp 50W+50W","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFeatures:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" id=\"pastingspan1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eWith AUX \/ USB \/ Bluetooth audio input, Bluetooth 5.0 input achieves much faster and more stable transmission, USB input has no need for driver, plug-and-\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eplay; compatible with most home audio devices such as ipod, phone, tablet, computer, CD player and so on.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMax output power can reach 100W (50W * 2) with the upgraded chip TPA3116, HiFi clear sound, no audible noise even at high power output.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBass button is specially designed to amplify bass effects, providing shocking listening experience just like in the cinema.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMini size with exquisite appearance, aluminum case looks attractive and durable, very suitable for home and desktop audio system use. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eParameters:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBluetooth standard protocol: Bluetooth 5.0 + EDR\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eRated power: 50W × 2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eInput Interface: Bluetooth, USB, AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eOperating mode: \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003ebutton\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAmplifier chip: American TI Texas Instruments TPA3116\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePower input: DC9V-24V \/ 3A or above\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eDimensions(W*D*H) (\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eExcluding protrusions)\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e: 80*53\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e*\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e22mm (3.15*2.09\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e*\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e0.87 in)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eNet Weight: 105 grams\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \/ 0.23lb\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage Weight: 300g \/ 0.66lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePacking List:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1× NS-10G Amplifier\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1× Power Adapter(Optional)\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1× 3.5mm Audio Cable\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1× RCA cable\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1× USB Cable\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1×\u003cspan data-mce-fragment=\"1\"\u003e Manual\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"With Power Supply \/ Black \/ US","offer_id":43052013650152,"sku":"DZ027H-US","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ UK","offer_id":47406472167656,"sku":"DZ027H-UK","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ EU","offer_id":47406472200424,"sku":"DZ027H-DE","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ AU","offer_id":47406472233192,"sku":"DZ027H-AU","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ Other","offer_id":47406472265960,"sku":"DZ027H","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Silver \/ 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Power Supply \/ Gold \/ US","offer_id":43052013879528,"sku":"DZ026G-US","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Without Power Supply \/ Gold \/ UK","offer_id":47406473216232,"sku":"DZ026G-UK","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Without Power Supply \/ Gold \/ EU","offer_id":47406473249000,"sku":"DZ026G-DE","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Without Power Supply \/ Gold \/ AU","offer_id":47406473281768,"sku":"DZ026G-AU","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Without Power Supply \/ Gold \/ Other","offer_id":47406473314536,"sku":"DZ026G","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Without Power Supply \/ Blue \/ US","offer_id":43052013945064,"sku":"DZ026B-US","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Without Power Supply \/ Blue \/ UK","offer_id":47406473347304,"sku":"DZ026B-UK","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Without Power Supply \/ Blue \/ EU","offer_id":47406473380072,"sku":"DZ026B-DE","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Without Power Supply \/ Blue \/ AU","offer_id":47406473412840,"sku":"DZ026B-AU","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Without Power Supply \/ Blue \/ Other","offer_id":47406473445608,"sku":"DZ026B","price":29.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/DZ027-N_3.jpg?v=1652247058"},{"product_id":"doukaudio-com-nobsound-ns-15g-mini-bluetooth-5-0-digital-amplifier-receiver-tpa3116-stereo-audio-amp-100w-100w","title":"Nobsound NS-15G Mini Bluetooth 5.0 Digital Amplifier Receiver TPA3116 Stereo Audio Amp 100W+100W","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTone off design and HiFi clear sound: more delicate and smooth sound can be enjoyed by adjusting treble \/ bass knob, presenting music with rousing highs and deep lows,  also with bypass function to enjoy original sound.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eStrong compatibility and large output power: besides RCA, with Bluetooth 5.0 input supports up to 50ft connection range, stable and low delay. 2PCS TPA3116 chip, max output power can reach 200W, comes with 19V power supply, can drive 200W (8Ω) or 300W(4Ω) speakers.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eUnique design in appearance and technology: AUX \/ Bluetooth switch with red \/ blue indicator; pure integrated aluminum case and knob with multiprocess fine treatment, CNC precision cutting ; curved smooth edges highlights its unibody design; metal DC outlet, no electric sparks flying.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMini size and easy use but powerful and practical: with perfect protection circuit, perfectly suitable for desktop or a smaller space in home or office, easy to connect to your audio system, especially designed for the audiophiles who pursue HiFi sound.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cstrong\u003eParameters\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBrand: Nobsound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eModel: NS-15G\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNumber of channel: 2.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAudio input:  Bluetooth \/ stereo L\/R RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAudio ouput: banana speaker jacks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAmp chip: TPA3116D2 ×2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMax. output power: 100W+100W (above 24V@8A \/ 4Ω)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eOutput impedance: 4Ω-8Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTreble and bass range: ±10dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTone bypass function: support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency range: 18Hz-25kHz\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTHD: ≤ 0.01%\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSNR: ≥ 98dB\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInput sensitivity: 1.1V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMatched speakers: 3-10 inch 20-200W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eWorking voltage: DC 12V-24V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDimensions(W*D*H): 92*108*30mm \/ 3.62*4.25*1.18in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage dimensions(W*D*H): 150*150*50mm \/ 5.91*5.91*1.97in \u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNet weight: 320g \/ 0.71lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage weight: 900g \/ 1.98lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× NS-15G Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× 19V Power Supply\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"Without Power Adapter \/ US","offer_id":47198624678120,"sku":"DZ036-DJ-US","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47406474363112,"sku":"DZ036-DJ-UK","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47406474395880,"sku":"DZ036-DJ-DE","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47406474428648,"sku":"DZ036-DJ-AU","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47406474461416,"sku":"DZ036-DJ","price":49.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ US","offer_id":47198624710888,"sku":"DZ036-19V-US","price":59.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ UK","offer_id":47406474494184,"sku":"DZ036-19V-UK","price":59.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ EU","offer_id":47406474526952,"sku":"DZ036-19V-DE","price":59.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ AU","offer_id":47406474559720,"sku":"DZ036-19V-AU","price":59.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ Other","offer_id":47406474592488,"sku":"DZ036-19V","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/DZ036-2023_4.jpg?v=1679363584"},{"product_id":"doukaudio-com-nobsound-ns-10g-pro-mini-bluetooth-5-0-digital-amplifier-dsp-hifi-stereo-audio-power-amp","title":"Nobsound NS-10G PRO Mini Bluetooth 5.0 Digital Amplifier DSP HiFi Stereo Audio Power Amp","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\" align=\"center\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e①LATEST VERSION\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNobsound NS-10G Pro is the newest update version of our popular NS-10G amplifier. It has better performance and purer Hi-Fi music experience. A great choice for your home audio system.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e②ENJOY HI-FI MUSIC WIRELESSLY\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBluetooth 5.0+EDR and Hi-Fi DSP (Digital Signal Processing) to achieve much better Hi-Fi sound quality (BT distance is improved to 15m).\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e③NO BACKGROUND NOISE\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eWe remove unnecessary functions like volume control, which make its circuit design is purer and shortened the length of the signal trace.\u003c\/span\u003e \u003cspan data-mce-fragment=\"1\"\u003eNo noise floor, all for best Hi-Fi.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e④MINI ELEGANT SIZE BUT POWERFUL\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDespite its mini size (can be hold with one hand), the output power is improved to 200W (100W*2) with the upgraded chip TPA3221. You will be amazed by its output power compared to its size when you see it.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e⑤LOSSLESS TRANSMISSION\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eUpgraded gold-plated copper binding posts can greatly enhance its corrosion resistance and ensure high quality transmission even after long-time use.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e⑥COMPACT\u0026amp;PRACTICAL\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAccording to our customers needs, this upgrade version has no prompt tone. No fancy, simple and practical.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e⑦SUPER COMPATIBILITY\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eCan be widely applied to All Your Favorite Devices such as Smartphone, TV, iPod Touch, iPhone, iPad, Computer, Tablet PC, CD Player, MP3, Music Player etc. Versatile and simple to use. (Not suit for calling.)\u003c\/span\u003e\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eParameters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eColor: Black \/ Silver \/ Gold \/ Blue \/ Red\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBluetooth distance: 15 meters (older version is 10m)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBluetooth standard protocol: Bluetooth 5.0 + EDR + DSP\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eRated power: 100W× 2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAudio Input: Bluetooth, AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAmplifier chip: American TI Texas Instruments TPA3221\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePower input: DC9V-24V \/ 3A or above\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDimensions: (W)78 × (D)70 × (H)23 mm (3.07 × 2.76 × 0.91 inches)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWeight:  240g\/460g (Without\/With Power Supply)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePacking List\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1 * NS-10G Pro Amplifier\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1 * 12V\/5A Power Supply \u003cspan data-mce-fragment=\"1\"\u003e(Optional)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1 * RCA Audio Cable\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1 * 3.5mm Audio Cable\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1 * Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e","brand":"doukaudio","offers":[{"title":"With Power Supply \/ Black \/ US","offer_id":43054899101928,"sku":"DZ042H-19V-3.42A-US","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ UK","offer_id":47406900674792,"sku":"DZ042H-19V-3.42A-UK","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ EU","offer_id":47406900707560,"sku":"DZ042H-19V-3.42A-DE","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ AU","offer_id":47406900740328,"sku":"DZ042H-19V-3.42A-AU","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ Other","offer_id":47406900773096,"sku":"DZ042H-19V-3.42A","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Black \/ US","offer_id":43054899265768,"sku":"DZ042H-US","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Black \/ UK","offer_id":47406900805864,"sku":"DZ042H-UK","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Black \/ EU","offer_id":47406900838632,"sku":"DZ042H-DE","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Black \/ AU","offer_id":47406900871400,"sku":"DZ042H-AU","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Black \/ Other","offer_id":47406900904168,"sku":"DZ042H","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/DZ042-5_3.jpg?v=1650849115"},{"product_id":"doukaudio-com-nobsound-ns-20g-mini-bluetooth-5-0-digital-amplifier-hifi-stereo-headphone-amp-100w-100w","title":"Nobsound NS-20G Mini Bluetooth 5.0 Digital Amplifier HiFi Stereo Headphone Amp 100W+100W","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003c!-- x-tinymce\/html --\u003e\u003c\/p\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003cspan\u003eNS-20G amplifier is only suitable for 5-8 inches \/ 4-8 Ohms \/ 20-120W speakers, using mismatched speakers may result in poor sound and over-heat \u0026amp; over-load protection which will cause lag, power-off even damage.\u003c\/span\u003e\u003c\/strong\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e① Mini Elegant Size But Powerful\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eNS-20G mini compact size suits very well for home and desktop use, and the output power is improved to 200W (100W*2) with 2PCS TPA3116 chip.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eYou will be amazed by its output power compared to its size when you see it. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e② HiFi Sound and Bluetooth Lossless Transmission\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e \u003cspan\u003eHiFi clear and clarity sound, no audible noise. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eBluetooth 5.0+EDR+DSP (Digital Signal Processing) to \u003cspan\u003eachieve real wireless lossless signal transmission and enjoy \u003c\/span\u003e\u003cspan\u003emuch better Hi-Fi sound quality \u003c\/span\u003e\u003cspan\u003ewithin 15M distance, which brings you high-grade listening feast without any background noise.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e ③ Strong Applicability and Compatibility\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003eNS-20G can be used as headphone amplifier(Only support 15-32Ω headphones). Bluetooth and AUX input \u003cspan\u003ecan be widely applied to All Your Favorite Devices and 100W×2 output power can drive most home speakers.\u003c\/span\u003e \u003c\/li\u003e\n\u003cli\u003eBecause the Speaker and Headphone can output at the same time, the phone output connect to active subwoofer and speaker jacks connect to passive speakers can make up 2.1 channel audio system, which will enhance the bass effect greatly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\u003cstrong\u003e④ Compact and Attractive Appearance\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e Integrated aluminum case with crystal speaker jacks, multifunction decoding knob and dynamic volume LED display, this unique design makes it beautiful and practical as well.\u003c\/li\u003e\n\u003cli\u003e5 fashionable colors for you freely to choose.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eColor: Black \/ Silver \/ Gold \/ Blue \/ Red\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBluetooth distance: 15 meters\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBluetooth standard protocol: Bluetooth 5.0+ EDR + DSP\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRated power: 200W (100W×2)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio Input: Bluetooth, AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAmplifier chip: American TI Texas Instruments TPA3116 ×2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower input: DC12V-20V \/ above 60W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions: (W)78 × (D)90 × (H)23 mm (3.07 × 3.54 × 0.91 inches)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eNet Weight: \u003c\/span\u003e\u003cspan\u003e160g\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eAudio Output:  Banana Speaker Jacks, 3.5mm Headphone\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage Weight: 300g\/500g (Without\/With Power Supply)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cspan\u003ePacking List\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cdiv\u003e1 * NS-20G Amplifier\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cdiv\u003e1 * 19V Power Supply \u003cspan\u003e(Optional)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cdiv\u003e1 * RCA Audio Cable\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cdiv\u003e1 * 3.5mm Audio Cable\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003e1 * Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"With Power Supply \/ US","offer_id":43054973026536,"sku":"DZ045H-19VDY-US","price":55.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ UK","offer_id":47406892482792,"sku":"DZ045H-19VDY-UK","price":55.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ EU","offer_id":47406892515560,"sku":"DZ045H-19VDY-DE","price":55.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ AU","offer_id":47406892548328,"sku":"DZ045H-19VDY-AU","price":55.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Other","offer_id":47406892581096,"sku":"DZ045H-19VDY","price":55.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ US","offer_id":43054990426344,"sku":"DZ045H-US","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ UK","offer_id":47406892613864,"sku":"DZ045H-UK","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ EU","offer_id":47406892646632,"sku":"DZ045H-DE","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ AU","offer_id":47406892679400,"sku":"DZ045H-AU","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Other","offer_id":47406892712168,"sku":"DZ045H","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/1_43d89fe4-aafb-4e63-be40-eb43139ec437.jpg?v=1651893133"},{"product_id":"doukaudio-com-nobsound-ns-13g-mini-2-0-channel-digital-amplifier-hifi-home-desktop-audio-amp-100w-100w","title":"Nobsound NS-13G Mini 2.0 Channel Digital Amplifier HiFi Home Desktop Audio Amp 100W+100W","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTone off design and HiFi clear sound: more delicate and smooth sound can be enjoyed by adjusting treble \/ bass knob, also with bypass function to enjoy original sound.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLarge output power and strong compatibility: adopting 2PCS TPA3116 chip, max output power can reach 200W, comes with 19V power supply, can drive 200W (8Ω), 300W(4Ω) speakers, no pop or audible noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eUnique design in appearance and technology: customized gray aluminum case with multiprocess fine treatment, CNC precision cutting; unique knurling knob with strong metal feelings; metal DC outlet, no electric sparks flying.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMini size and easy use but powerful and practical: perfectly suitable for desktop or a smaller space in home or office, easy to connect to your audio system, especially designed for the audiophiles who pursue HiFi sound.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBrand: Nobsound\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eModel: NS-13G\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNumber of channel: 2.0\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio input: stereo L\/R RCA\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio output: banana speaker jacks\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAmp chip: TPA3116D2 ×2\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMax. output power: 100W+100W (above 24V@8A \/ 4Ω)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOutput impedance: 4Ω-8Ω\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTreble and bass range: ±10dB\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTone bypass function: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency range: 18Hz-25kHz\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTHD: ≤ 0.01%\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSNR: ≥ 98dB\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInput sensitivity: 1.1V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMatched speakers: 3-10 inch 20-200W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking voltage: DC 12V-24V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDimensions(W*D*H): 82*108*27mm \/ 3.23*4.13*1.06in\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage dimensions(W*D*H): 150*150*50mm \/ 5.91*5.91*1.97in\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNet weight: 260g \/ 0.57lb\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage weight: 630g \/ 1.39lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1× NS-13G Amplifier\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1× 19V Power Supply\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1× User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"Without Power Adapter \/ US","offer_id":47198622154984,"sku":"DZ033-DJ-US","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47406918861032,"sku":"DZ033-DJ-UK","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47406918893800,"sku":"DZ033-DJ-DE","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47406918926568,"sku":"DZ033-DJ-AU","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47406918959336,"sku":"DZ033-DJ","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ US","offer_id":47198622187752,"sku":"DZ033-19V-US","price":64.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ UK","offer_id":47406918992104,"sku":"DZ033-19V-UK","price":64.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ EU","offer_id":47406919024872,"sku":"DZ033-19V-DE","price":64.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ AU","offer_id":47406919057640,"sku":"DZ033-19V-AU","price":64.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ Other","offer_id":47406919090408,"sku":"DZ033-19V","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/BS-DZ033_5.jpg?v=1679965739"},{"product_id":"doukaudio-com-nobsound-g2-mini-100w-mono-channel-digital-amplifier-subwoofer-full-frequency-power-amp-for-home-stereos","title":"Nobsound G2 Mini 100W Mono Channel Digital Amplifier Subwoofer\/Full-Frequency Power Amp for Home Stereos","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e A WORKING MODE SWITCHER:\u003c\/strong\u003e convenient to use it as subwoofer bass amplifier or full frequency amp, and you can use two Nobsound G2 to drive left and right channel independently, and the mutual interference between the channels is suppressed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGAIN CONTROL:\u003c\/strong\u003e a gain switch on the bottom of the amplifier to allow 4-level of output level setting (20\/26\/32\/36 dB), to keep the sound quality better and not affected by the the resistor part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHIGH-END MATERIALS AND LARGE POWER:\u003c\/strong\u003e Texas Instruments TPA3116 chip, NE5532 op-amp to guarantee no audible noise, 100Wx 1 @4ohm mono channel amp can drive most home passive speaker or subwoofer, bringing HiFi listening experience.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEXCELLENT CORCUIT AND APPEARANCE DESGIN:\u003c\/strong\u003e built-in speakers protection circuit, solid aluminum chassis for long time use; built-in low pass filter for subwoofers with sub frequency control, small simple compact design but practical and powerful.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" id=\"pastingspan1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSpecification\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable data-mce-fragment=\"1\" cellspacing=\"0\" border=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"170\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMax Power\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"141\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e100W*1 2Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"94\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFull frequency response\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"245\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e20Hz-20kHz(±3dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"170\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe speaker matches the impedance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"141\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2-8Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"94\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eT\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eHD\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"245\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eO\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eutput \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e1W@ 0.03%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"170\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWorking Voltage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"141\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDC12-24V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"94\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSNR\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"245\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e≥106dB\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"170\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eInput sensitivity\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"141\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e0.775V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"94\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDimension\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"245\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eD118.5*W98*H33MM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"170\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBass cutoff frequency range adjustment\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"141\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e40-300\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eHz\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"94\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eW\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eeight\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"245\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e0.36KG\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"170\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSlope of bass attenuation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"141\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e-12\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003edB Slope\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"94\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eP\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eackage Size\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"245\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eD257*W215*H65MM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1× Power Amplifier\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× Power Supply \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"Without Power Adapter \/ US","offer_id":47198612127976,"sku":"DZ056-DJ-US","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47406476591336,"sku":"DZ056-DJ-UK","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47406476624104,"sku":"DZ056-DJ-DE","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47406476656872,"sku":"DZ056-DJ-AU","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47406476689640,"sku":"DZ056-DJ","price":46.99,"currency_code":"USD","in_stock":true},{"title":"With 19V Power Adapter \/ US","offer_id":47198612160744,"sku":"DZ056-19V-US","price":49.99,"currency_code":"USD","in_stock":true},{"title":"With 19V Power Adapter \/ UK","offer_id":47406476722408,"sku":"DZ056-19V-UK","price":49.99,"currency_code":"USD","in_stock":true},{"title":"With 19V Power Adapter \/ EU","offer_id":47406476755176,"sku":"DZ056-19V-DE","price":49.99,"currency_code":"USD","in_stock":true},{"title":"With 19V Power Adapter \/ AU","offer_id":47406476787944,"sku":"DZ056-19V-AU","price":49.99,"currency_code":"USD","in_stock":true},{"title":"With 19V Power Adapter \/ Other","offer_id":47406476820712,"sku":"DZ056-19V","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/4_2e3766dc-8fdc-4021-9869-d9b65331156d.jpg?v=1651108499"},{"product_id":"nobsound-t3-mm-phono-preamp-record-player-preamplifier-hifi-turntable-amplifier","title":"Nobsound T3 MM Phono Preamp for Record Player HiFi Home Turntable Pre-Amplifier","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eT3 phono preamp is designed for home MM(moving magnet) turntable record players to convert phono signals to line level signals. It is only a preamp, which needs to be used with amplifiers or active speakers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWith volume control, higher amplification times can make best use of your record player performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAdopting pure copper GND and gold-plated RCA terminals, low-noise integrated circuits and high quality components to remove low frequency noise and ensure clear sound \u003cspan data-mce-fragment=\"1\"\u003equality, bringing HiFi listening experience.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMini size with attractive appearance, power switch with red indicator makes it fashionable, metal aluminum case can prevent vibrations and electromagnetic interference, very suitable for home and desktop audio system use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio input: phono(MM)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio output: RCA\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eElectrical level output: 600mv@3mV 1kHz\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking voltage: DC12V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSNR: ≥98dB\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTHD: 0.1%\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency Response: meet standard RIAA\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eProduct Weight: 290 g \/ 0.64 lb\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDimensions: (L*W*H)118*99*33 mm \/ 4.65*3.9*1.3 in\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1*T3 MM Phono Preamp\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1*DC 12V Adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47411221332200,"sku":"DZ068-US","price":44.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47411221364968,"sku":"DZ068-UK","price":44.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47411221397736,"sku":"DZ068-DE","price":44.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47411221430504,"sku":"DZ068-AU","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47411221463272,"sku":"DZ068","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/1_f850506d-69de-4f7d-8fdf-e80b5994bccb.jpg?v=1658115735"},{"product_id":"doukaudio-com-douk-audio-m1-pro-hifi-bluetooth-5-0-digital-amplifier-desktop-stereo-amp-usb-player-160w-2","title":"Douk Audio M1 PRO HiFi Bluetooth 5.0 Digital Amplifier Desktop Stereo Amp USB Player 160W×2","description":"\u003cdiv id=\"pastingspan1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003eUsing classic TDA7498E chip, max output power can reach 160W + 160W, equipped with high-quality 32V\/5A power supply enough to drive above 300W passive speakers. It has a good match with outdoor\/ bookshelf\/ computer\/ desktop \/ceiling \/floor standing speakers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eM1 PRO supports stereo RCA and Bluetooth 5.0 input, compatible with phones, computers, TVs, MP3 players, TV, Echo Dot, CD players etc. It is also a digital music player with U-disk input supporting MP3, WAV, APE, FLAC and WMA lossless formats.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eA low frequency output is specially designed to connect active speakers and the bass effects can be strongly enhanced. The sound is more delicate with treble and bass control, the shocking auditory effects make you feel like in the cinema.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eReasonable circuit layout and concise wiring to ensure HiFi clear and clean sound, no audible noise even at high power output.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eAdd a Bluetooth reset button, supporting one click to clear all devices paired, easy to restart and connect the new devices to the Bluetooth input of M1 pro.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMini size with exquisite appearance, aluminum alloy case and gold-plated terminals are fashionable and durable, with input switch and indicator, very suitable for home and desktop audio system use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli\u003eModel: M1 PRO\u003c\/li\u003e\n\u003cli\u003eChannel: 2.0\u003c\/li\u003e\n\u003cli\u003eAudio input: Bluetooth\/RCA\/U-disk\u003c\/li\u003e\n\u003cli\u003eAudio output: banana speaker jacks \/ low frequency signal (connect active subwoofers)\u003c\/li\u003e\n\u003cli\u003eSupport format: MP3, WMA, APE, FLAC, WAV\u003c\/li\u003e\n\u003cli\u003eU-disk capacity: max 32G\u003c\/li\u003e\n\u003cli\u003eBluetooth version: 5.0\u003c\/li\u003e\n\u003cli\u003eSpeaker impedance: 4-8Ω\u003c\/li\u003e\n\u003cli\u003eMax output power: 160W * 2 (4Ω load)\u003c\/li\u003e\n\u003cli\u003eSNR: ≥98dB\u003c\/li\u003e\n\u003cli\u003eInput sensitivity: 0.775V\u003c\/li\u003e\n\u003cli\u003eTHD: 0.05%(1kHz 1W)\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 20Hz-20KHz(±3dB)\u003c\/li\u003e\n\u003cli\u003eWorking voltage: DC 19-35V\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eDimensions(L*W*H): 128*117*35mm \/ 5.04*4.61*1.38in\u003c\/li\u003e\n\u003cli\u003eNet weight: 512g \/ 1.13lb\u003c\/li\u003e\n\u003cli\u003ePackage weight: 1.2kg \/ 2.65lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e1 * M1 PRO Amplifier\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1 * 32V\/5A Power Supply\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1 * Bluetooth Antenna\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47198613012712,"sku":"DZ071-32V-US","price":79.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406481375464,"sku":"DZ071-32V-UK","price":79.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406481408232,"sku":"DZ071-32V-DE","price":79.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406481441000,"sku":"DZ071-32V-AU","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406481473768,"sku":"DZ071-32V","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_870ae054-a6b9-4846-bd71-3e6642cda123.jpg?v=1724826741"},{"product_id":"doukaudio-com-nobsound-g2-pro-mini-300w-mono-digital-power-amplifier-subwoofer-full-frequency-home-audio-amp","title":"Nobsound G2 PRO Mini 300W Mono Digital Power Amplifier Subwoofer\/Full-Frequency Home Audio Amp","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv style=\"text-align: left;\" id=\"pastingspan1\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli\u003eWith PBTL\/SUB switch: convenient to use G2 PRO as full frequency amp or subwoofer amp, a SUB output is specially designed for active subwoofer. G2 PRO can connect to \u003cspan\u003eboth \u003c\/span\u003epassive and active subwoofers. And two G2 PRO can be used to drive left and right channel independently to avoid mutual interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eMax 300W output power: \u003cspan\u003eusing TPA3255D2 amp chip and \u003c\/span\u003eequipped with 32V\/5A large power supply, enough to drive 320W passive speakers or subwoofers. It also has a good match with outdoor\/ bookshelf\/ computer\/ desktop \/ceiling \/floor standing speakers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eBest design and HiFi sound: with \u003c\/span\u003ea gain switch to allow 2-level of output level setting (32\/36 dB) and \u003cspan\u003eSUB frequency adjustment (40-300Hz). It also has\u003c\/span\u003e \u003cspan\u003ebuilt-in speaker protection circuit, low-pass filter to guarantee no audible noise even at high power output, SUB signal and amp can output at the same time to bring HiFi listening experience.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eMini size with exquisite appearance: mono integrated class D amplifier, simple compact design but with powerful function, more fashionable and durable solid aluminum chassis, very suitable for HiFi home and desktop audio system use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\" id=\"pastingspan1\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv align=\"center\"\u003e\n\u003ctable border=\"1\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"180\"\u003e\n\u003cp\u003e\u003cspan\u003eMax Power\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"84\"\u003e\n\u003cp\u003e\u003cspan\u003e300W\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003eFull frequency response\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"120\"\u003e\n\u003cp\u003e\u003cspan\u003e20Hz-20kHz(±3dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003eThe speaker matches the impedance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"84\"\u003e\n\u003cp\u003e\u003cspan\u003e4-8Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003eTHD\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"120\"\u003e\n\u003cp\u003e\u003cspan\u003eOutput 1W @ 0.03%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003eWorking Voltage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"84\"\u003e\n\u003cp\u003e\u003cspan\u003eDC24-48V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003eSNR\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"120\"\u003e\n\u003cp\u003e\u003cspan\u003e≥106dB\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003eInput sensitivity\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"84\"\u003e\n\u003cp\u003e\u003cspan\u003e0.775V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003eProduct Dimension\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"120\"\u003e\n\u003cp\u003e\u003cspan\u003eL127*W118*H35MM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003eBass cutoff frequency range adjustment\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"84\"\u003e\n\u003cp\u003e\u003cspan\u003e40-300Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003eNet Weight\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"120\"\u003e\n\u003cp\u003e\u003cspan\u003e0.5kG\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003eSlope of bass attenuation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"84\"\u003e\n\u003cp\u003e\u003cspan\u003e-12dB Slope\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"156\"\u003e\n\u003cp\u003e\u003cspan\u003ePackage Size\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"120\"\u003e\n\u003cp\u003e\u003cspan\u003eL257*W215*H65MM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e1* G2 PRO Mono Power Amplifier\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1* 32V\/5A Power Supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"Without Power Adapter \/ US","offer_id":47198614651112,"sku":"DZ072-DJ-US","price":64.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47406481572072,"sku":"DZ072-DJ-UK","price":64.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47406481604840,"sku":"DZ072-DJ-DE","price":64.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47406481637608,"sku":"DZ072-DJ-AU","price":64.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47406481670376,"sku":"DZ072-DJ","price":64.99,"currency_code":"USD","in_stock":true},{"title":"With 32V5A Power Adapter \/ US","offer_id":47198614683880,"sku":"DZ072-32V-US","price":79.99,"currency_code":"USD","in_stock":true},{"title":"With 32V5A Power Adapter \/ UK","offer_id":47406481703144,"sku":"DZ072-32V-UK","price":79.99,"currency_code":"USD","in_stock":true},{"title":"With 32V5A Power Adapter \/ EU","offer_id":47406481735912,"sku":"DZ072-32V-DE","price":79.99,"currency_code":"USD","in_stock":true},{"title":"With 32V5A Power Adapter \/ AU","offer_id":47406481768680,"sku":"DZ072-32V-AU","price":79.99,"currency_code":"USD","in_stock":true},{"title":"With 32V5A Power Adapter \/ Other","offer_id":47406481801448,"sku":"DZ072-32V","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/DZ072_5.jpg?v=1651108090"},{"product_id":"doukaudio-com-douk-audio-g4-mono-channel-digital-amplifier-subwoofer-full-frequency-power-amp-100w","title":"Douk Audio G4 Mono Channel Digital Amplifier Subwoofer\/Full-Frequency Power Amp 100W","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003eNotice: \u003c\/strong\u003eThis is mono amplifier, if you want stereo output please buy 2PCS or 3PCS.\u003c\/span\u003e\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eG4 can be used as full frequency amp or subwoofer amp with the B\/M switch to connect different speakers, and with 3.5mm AUX and RCA input to compatible with different audio devices. 2PCS G4 can be used to drive left and right channel independently to avoid mutual interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAdopting 2PCS NE5532 op-amp and TI's TPA3116 chip, output power up to 100W enough to drive passive 3-10 inch full-frequency speakers or 4-12 inch subwoofers, no audible noise even at large power output, upgrade your 2.0 channel audio system to 2.1, providing shocking cinema effects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBy combining the stereo(left and right channel) input, first to do signal analysis and frequency processing and then power amplification, the low-frequency filtering will be more pure and power consumption is more efficient.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMini size with exquisite appearance: mono integrated class D amplifier, simple compact design but with powerful function, more fashionable and durable solid aluminum chassis, very suitable for HiFi home and desktop audio system use. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio input: 3.5mm AUX \/ RCA\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio output: banana speaker jacks\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRated power: 100W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePeak power : 300W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTHD: 0.001%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSNR: 103dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSpeaker impedance: 4-8Ω\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMatched full-frequency or crossover speaker: 3-10 inch \/ 10-200W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMatched subwoofer speaker: 4-12 inch \/ 40-200W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency range:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cblockquote data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSubwoofer mode: 20-200Hz\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFull-frequency mode: 20-20Khz\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking voltage: DC 12-24V 5.5mm (-) \/ 2.5mm (+)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDimensions(L*W*H): 105*85*30mm \/ 4.13**3.35*1.18in\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNet weight: 240g \/ 0.53lb\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage weight: 445g \/ 0.98lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1*G4 Mono Amplifier\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1*19V Power Supply\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*Manual \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"Without Power Adapter \/ US","offer_id":47198643290344,"sku":"DZ078-DJ-US","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47411109363944,"sku":"DZ078-DJ-UK","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47411109396712,"sku":"DZ078-DJ-DE","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47411109429480,"sku":"DZ078-DJ-AU","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47411109462248,"sku":"DZ078-DJ","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ US","offer_id":47198643323112,"sku":"DZ078-19V-US","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ UK","offer_id":47411109495016,"sku":"DZ078-19V-UK","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ EU","offer_id":47411109527784,"sku":"DZ078-19V-DE","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ AU","offer_id":47411109560552,"sku":"DZ078-19V-AU","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ Other","offer_id":47411109593320,"sku":"DZ078-19V","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/DZ078-DY-2023_5.jpg?v=1692606647"},{"product_id":"hifi-5-1-channel-bluetooth-digital-amplifier-usb-coax-opt-home-theater-amp-ldac","title":"Nobsound M5.1 HiFi 5.1 Channel Amplifier w\/Bluetooth COAX\/OPT\/USB Home Subwoofer Power Amp","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cdiv\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cdiv\u003e\u003cstrong\u003eWarm tips:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e1. Default comes with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eONE\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e24V\/6A power adapter, if you want higher output please prepare another one by yourself.\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e2. Long press play\/pause button can switch between 2.1 and 5.1 channel output mode. When switching to 5.1 channel output mode, any input modes can achieve 5. 1 channel output.\u003cbr\u003e3. If you want real 5.1 channel output, please use 5.1 channel RCA input. If input 2.0 channel but output 5.1 channel, the stereo signal is processed and simulated to 5.1 channel.\u003c\/span\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTransfer 2.0 channel input to 5.1 channel output: with built-in multi-channel signal process chip and circuit, which applies professional algorithms and dynamic separation techniques. Even when input 2.0 channel audio signal, it can also auto allocate and simulate to 5.1 channel and provide excellent smart noise reduction, precise sound positioning and stereo surround sense.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMultiple audio inputs to work with more devices: with Bluetooth 5.0 \/ coaxial \/ optical \/ U-disk four digital inputs and 2.0CH \/ 5.1CH RCA inputs, strong compatibility and works perfectly with most home audio devices. U-disk input supports lossless formats such as WAV, APE, FLAC besides MP3, high-quality music can be reproduced and enjoyed.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eStrong power output and multi-channel system building: adopting 3PCS classic TPA3116 chip, responsible for front (50W*2)\/ surrounded (50W*2) \/ center(50W) \/ subwoofer(50W) outputs; specially add a low frequency output to connect another active subwoofer to easily build 2.0\/2.1\/2.2\/5.1\/5.2 channel system and enjoy shocking auditory effects as if you are in a movie theater.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eIndependent control knobs and dual power inputs: besides main volume control and treble \u0026amp; bass knobs, also with separate front\/ surround\/ center\/ bass volume control; and specially design two power supply inputs (main\/vice) to provide stronger power input to easily drive most home speakers and subwoofers with high power.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eUser-friendly design and advanced functions: with detailed function buttons and separate indicators, convenient to use and see the working status in real time; one button to switch 2.1 and 5.1 channel outputs, no need to plug in and out speaker cables repeatedly. Made of aluminium alloy and in compact size, very suitable for those who want to build a mini HIFI 5.1 channel system.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cp\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand: Nobsound\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eModel: M5.1\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio input: Bluetooth 5.0 \/ Coaxial \/ Optical \/ U-disk \/ 2.0 Channel \u003c\/span\u003e\u003cspan\u003eRCA\/ 5.1 Channel RCA\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio output: banana speaker jacks \/ low frequency out (connect to active subwoofer)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMaximum output power:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFront channel: 50W+50W\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSurrounded channel: 50W+50W\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCenter channel: 50W\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBass channel: 50W\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSupported formats of U-disk: MP3\/WAV\/APE\/FLAC\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSampling rate supported:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eU-disk: 16Bit \/ 44.1-48KHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBluetooth: 16Bit 1 44.1-48KHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCoaxial: 16-24Bit \/ 44.1- 192KHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eOptical: 16-24Bit \/ 44. 1-192KHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFrequency response: 20Hz-20KHz (+1 .5dB)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBass frequency response: 40Hz-160Hz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eInput sensitivity: 0.775V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSNR: ≥100dB\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTHD: 0.05% @1kHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTreble\/bass range: ±6dB\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWorking voltage: DC 15-24V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDimensions(W*D*H): 230*130*49mm \/ 9.06*5.12*1.93in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage dimensions(W*D\"H): 410*205*83mm \/ 16.14*8.07*3.27in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eNet weight: 1.19kg \/ 2.62lb\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 1.8kg\/ 3.971b\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e1*M5.1 Amplifier\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e1*24V\/6A Power Adapter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e1*Optical Cable\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e1*Bluetooth Antenna\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1*User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47411082985704,"sku":"SUC-M5.1-US","price":169.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47411083018472,"sku":"SUC-M5.1-UK","price":169.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47411083051240,"sku":"SUC-M5.1-DE","price":169.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47411083084008,"sku":"SUC-M5.1-AU","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47411083116776,"sku":"SUC-M5.1","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_e2bd5910-065d-48da-a98d-659f205999a7.jpg?v=1702883074"},{"product_id":"nobsound-ta-21mini-bluetooth-5-0-dsp-digital-amplifier-tpa3221-integrated-power-amp-receiver","title":"Nobsound TA-21 Mini Bluetooth 5.0 DSP Digital Amplifier TPA3221 Stereo Audio Amp Receiver","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTA-21 is the updated version of NS-20G released in 2021, make much progress in improving output power, sound quality and avoiding heat generation.\u003c\/span\u003e\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMini size but strong output power: adopting TPA3221 chip, much better than TPA3116 in power and performance, each channel can output up to 100W, easily to drive 3''-10'' speakers, ultra-low heat emitting even when powering floor-standing speakers.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eStable and better sound quality: Bluetooth 5.0 version chip with DSP (digital sound processing), up to 50ft connection range makes HiFi music with low signal delay, the sound is clear, no pop and no audible noise via Bluetooth input.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e3.5mm AUX and Bluetooth inputs\u003c\/span\u003e: can match well with much audio devices to provide better sound quality, using buttons but not potentiometer to control the volume to avoid noise, exclusively designed for the audiophiles who pursue HiFi sound.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eCompact design and perfect details: besides advanced protection circuits, also with input indicators and volume display, clearly to show working status in real time. Cool black aluminium case and crystal copper terminals, practical and powerful.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e*DSP is only for Bluetooth input, AUX input without this function.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWarm tips\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003eDefault equipped with 24V\/3A power supply which is enough for most home speakers, if you want higher output please prepare large power supply by yourself.\u003c\/li\u003e\n\u003cli\u003eWhen plug in AUX cable, TA-21 will default enter AUX input mode. If you want Bluetooth input, please plug out AUX cable.\u003c\/li\u003e\n\u003cli\u003eIf there is an outage during use, that means the power supply is too small to drive the speaker, please change larger power supply or turn down the volume.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBrand: Nobsound\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eModel: TA-21\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio input: 3.5mm AUX \/ Bluetooth\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio output: banana speaker jacks\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBluetooth version: 5.0\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMax output power: 100W+100W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAmp IC chip: TPA3221\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMatched speaker: 3''-10''\/ 4-8Ω\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency response: 80Hz-20KHz\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking voltage: DC 9V-24V \/ 3A or above\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMinimum input power: 50W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDimensions(W*D*H): 78*90*23mm \/ 3.07*3.54*0.91in\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNet weight: 143g \/ 0.32lb\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage weight: 600g \/ 1.32lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1× TA-21 Amplifier\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1× 24V Power Adapter\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406906933480,"sku":"DZ087-US","price":46.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406906966248,"sku":"DZ087-UK","price":46.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406906999016,"sku":"DZ087-DE","price":46.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406907031784,"sku":"DZ087-AU","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406907064552,"sku":"DZ087","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/DZ087_2.jpg?v=1650961167"},{"product_id":"nobsound-ns-04g-pro","title":"Nobsound NS-04G PRO HiFi 2.0 Channel Digital Amplifier Mini Home Stereo Audio Amp 100W×2","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv align=\"center\"\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eWarm tips\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eThis is latest updated version that simplify the circuit, upgrade the components and greatly improve the sound quality. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\u003cspan\u003eWith standard stereo RCA audio input, perfectly compatible with many audio devices such as phone,TV, MP3 players, CD players, DAC, computers etc.. With built-in preamplification circuit, can match well with audio source that with low signal output.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\u003cspan\u003eAdopting classical TPA3116 IC chip in each channel, class D amplification, the max output power can reach 100W+100W(4Ω load), easily to drive all home bookshelf\/ computer\/ desktop\/floor-standing\/outdoor passive speakers.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\u003cspan\u003e\u003c!-- x-tinymce\/html --\u003eReasonable circuit, concise wiring layout and perfect protection, no sparks no shock. With ultra-low distortion and dynamic balance, the sound is very smooth and natural, powerful in low frequency and delicate in high frequency. The speaker terminals use a staggered design, which provides more space ond makes connection easier.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\u003cspan\u003eMini size with exquisite appearance, aluminum alloy black case looks fashionable and attractive. With strong output power and high-quality sound, exclusively designed for the customers who pursue HiFi sound, very suitable for home \/ office desktop audio system use.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Nobsound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: NS-04G PRO\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: stereo L\/R RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio ouput: banana speaker jacks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNumber of channel: 2.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChip: TPA3116D2 ×2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMax. output power: 100W+100W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency Range: 20Hz-20kHz (±1dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD: ≤ 0.01%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: ≥ 118dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput sensitivity: ≤ 280mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMatched speaker impedance: 4-8Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorking voltage: DC 12V-24V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions(W*D*H): 87*108*35mm \/ 3.43*4.25*1.37in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions(W*D*H): 150*150*50mm \/ 5.91*5.91*1.97in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 290g \/ 0.56lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage Weight(Without power supply): 400g \/ \u003c!-- x-tinymce\/html --\u003e0.88lb\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage Weight(With power supply): 700g \/ 1.54lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\" id=\"pastingspan1\"\u003e\n\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1× NS-04G PRO Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1×\u003c\/span\u003e User Manual\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1× 19V Power Supply(Optional)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"With Power Adapter \/ US","offer_id":43056659071208,"sku":"GFJ034H-19V-US","price":56.99,"currency_code":"USD","in_stock":true},{"title":"With Power Adapter \/ UK","offer_id":47406898315496,"sku":"GFJ034H-19V-UK","price":56.99,"currency_code":"USD","in_stock":true},{"title":"With Power Adapter \/ EU","offer_id":47406898348264,"sku":"GFJ034H-19V-DE","price":56.99,"currency_code":"USD","in_stock":true},{"title":"With Power Adapter \/ AU","offer_id":47406898381032,"sku":"GFJ034H-19V-AU","price":56.99,"currency_code":"USD","in_stock":true},{"title":"With Power Adapter \/ Other","offer_id":47406898413800,"sku":"GFJ034H-19V","price":56.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ US","offer_id":43056659103976,"sku":"GFJ034H-DJ-US","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47406898446568,"sku":"GFJ034H-DJ-UK","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47406898479336,"sku":"GFJ034H-DJ-DE","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47406898512104,"sku":"GFJ034H-DJ-AU","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47406898544872,"sku":"GFJ034H-DJ","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/BS-GFJ034H_1.jpg?v=1650872458"},{"product_id":"nobsound-ns-01g-pro100w-mini-power-amplifier-digital-hifi-amp-with-usb-aux-bluetooth-input","title":"Nobsound NS-01G PRO Mini Bluetooth 5.0 Digital Amplifier USB Sound Card Stereo Audio Amp 50W+50W","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\" align=\"center\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" id=\"pastingspan1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWith Bluetooth 5.0 \/ USB \/ 3.5mm AUX audio input, compatible with most common audio device such as phone, tablet, computer, TV, CD player, decoder, preamp and so on.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBluetooth 5.0 wireless input achieves faster and more stable transmission, USB input plug and play, no need for any driver. Equipped with complete accessories, you can enjoy its powerful function at once when you receive it.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAdopting classical TPA3116 chip, the max output power is improved to 100W(50W*2) which can drive most home speakers. HiFi clear and delicate sound, no audible noise even at high power output.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSuper mini size with exquisite appearance, aluminum case of five colors (black\/silver\/gold\/blue\/red) for freely choose, can provide HiFi music and decorate your home or office, very suitable for home and desktop audio system use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e30 days returning service and 3 months replacement service. 1 year warranty and life technical support. If you met any troubles or had any questions, please feel free to contact us.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eParameters\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eColors: Black \/ Silver \/ Gold \/ Blue \/ Red \u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBluetooth Version: 5.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eRated Power: 50W*2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eChannel: 2.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eImpedance: 4-8 ohms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eAudio input: Bluetooth \/ USB \/ 3.5mm \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eAUX \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAudio output: banana speaker jacks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePower Supply: DC 9V-24V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eDimensions: (L)78 * (W)70 * (H)38mm \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e(3.07 × 2.76 × 1.50 in)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNet Weight: 154g \/ 0.34lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage Weight(Without power supply): 0.35kg \/ 0.77lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage Weight(With power supply): 0.45Kg \/ 0.99lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003ePacking List\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× NS-01G Pro Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× Power Supply(OPTIONAL)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× AUX Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× USB Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× RCA Audio Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e1×\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e Manual\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"With Power Supply \/ US","offer_id":43056721953000,"sku":"GFJ058H-US","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ UK","offer_id":47406547075304,"sku":"GFJ058H-UK","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ EU","offer_id":47406547108072,"sku":"GFJ058H-DE","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ AU","offer_id":47406547140840,"sku":"GFJ058H-AU","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Other","offer_id":47406547173608,"sku":"GFJ058H","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ US","offer_id":43056722116840,"sku":"GFJ059H-US","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ UK","offer_id":47406547730664,"sku":"GFJ059H-UK","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ EU","offer_id":47406547763432,"sku":"GFJ059H-DE","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ AU","offer_id":47406547796200,"sku":"GFJ059H-AU","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Other","offer_id":47406547828968,"sku":"GFJ059H","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_916acd5c-04d3-4ffc-a5c2-56b418714e36.jpg?v=1751938655"},{"product_id":"nobsound-ns-03g-mini-100w-subwoofer-full-frequency-mono-channel-power-amplifier","title":"Nobsound NS-03G SUB Mini Mono Channel Digital Amplifier HiFi Home Subwoofer Power Amp 100W","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cstrong\u003eWarm tips\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eThis is the latest updated version, simplify the circuit, upgrade the components and greatly improve the sound quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAdopting classical TPA3116 amp IC, class D amplification, max output power can reach 100W(4Ω load), easily to drive most passive subwoofers and match perfectly with them.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWith 3.5mm AUX audio input, perfectly compatible with many audio devices such as phone,TV, MP3, CD players, computers, amplifier with low frequency output etc.. With built-in preamplification circuit, can match well with the audio sources that with low signal output.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eReasonable circuit, concise wiring layout and perfect protection, no sparks no shock. Adopting TL072 op amp with ultra-low distortion and dynamic balanced, the sound is very smooth and natural.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMini size with exquisite appearance, aluminum alloy black case looks fashionable and attractive. With strong output power and high-quality sound, especially designed for the customers who pursue HiFi sound.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBrand: Nobsound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eModel: NS-03G SUB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAudio input: 3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAudio ouput: banana speaker jacks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNumber of channel: mono\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eChip: TPA3116D2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eOP amp: TL072\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMax. output power: 100W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFrequency range: 20Hz-180Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTHD: ≤ 0.01%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSNR: ≥ 118dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eInput sensitivity: ≤ 280mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMatched subwoofer impedance: 4-8Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWorking voltage: DC 12V-24V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDimensions(W*D*H): 69*88*33mm \/ 2.72*3.46*1.30in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage dimensions(W*D*H): 150*150*50mm \/ 5.91*5.91*1.97in \u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNet weight: 190g \/ 0.42lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage Weight(Without power supply): \u003c!-- x-tinymce\/html --\u003e\u003cspan data-mce-fragment=\"1\"\u003e310g \/ 0.68lb\u003c\/span\u003e\u003cbr\u003ePackage Weight(With power supply): \u003c!-- x-tinymce\/html --\u003e\u003cspan data-mce-fragment=\"1\"\u003e610g \/ 1.34lb\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× NS-03G SUB Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1× User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1× 19V Power Supply(Optional)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"doukaudio","offers":[{"title":"With 19V\/4.74A Power Adapter \/ US","offer_id":43056992092392,"sku":"GFJ445-19V-US","price":46.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ UK","offer_id":47406904869096,"sku":"GFJ445-19V-UK","price":46.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ EU","offer_id":47406904901864,"sku":"GFJ445-19V-DE","price":46.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ AU","offer_id":47406904934632,"sku":"GFJ445-19V-AU","price":46.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ Other","offer_id":47406904967400,"sku":"GFJ445-19V","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ US","offer_id":43056992190696,"sku":"GFJ445-DJ-US","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47406905000168,"sku":"GFJ445-DJ-UK","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47406905032936,"sku":"GFJ445-DJ-DE","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47406905065704,"sku":"GFJ445-DJ-AU","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47406905098472,"sku":"GFJ445-DJ","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/NEW-GFJ445-2023-N_6.jpg?v=1679044679"},{"product_id":"hifi-bluetooth-5-0-digital-power-amplifier-stereo-2-4-channel-audio-amp-50w-4","title":"Douk Audio M4 HiFi Bluetooth 5.0 Digital Amplifier Stereo 4 Channel Multi-room Audio Amp 50W×4","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli\u003eOne group of stereo RCA (CH3 and CH4) can be used as audio input or output by switching the selector, to acheive different demands:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cblockquote\u003e\n\u003cdiv style=\"text-align: left;\" id=\"pastingspan1\"\u003eCH3\/CH4 as audio output: 4 groups of speaker sockets can connect to 2 pair of speakers. Besides connect to active speakers, CH3\/CH4 also can connect to another M4 amplifier to connect more speakers, in this way multiple amplifiers and multiple speakers can be connected in turn, to achieve one audio signal be shared in several rooms.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eCH3\/CH4 as audio input: one input corresponds to one output (ex. CH1 speaker socket will output the audio signal that CH1 inputs), which means that two groups of stereo audio signal (or 4 groups of mono audio signal) can be input at the same time.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli\u003eSupporting wired 2 groups of stereo RCA and wireless Bluetooth 5.0 input, compatible with most common audio device such as phones, computers, TVs, MP3, TV, CD players etc. With U-disk input, it can be used as a digital music player, supporting MP3, WAV, APE, FLAC and WMA lossless formats.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eWith 4 groups of speaker sockets output, they can output at the same time and each channel with independent volume control. Its max output power can reach 50W×4, and equipped with high-quality 24V\/4.5A power supply, enough to drive most home speakers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eReasonable circuit layout, concise wiring and high-quality components to ensure HiFi clear sound and long time stable work. Separate design of small and \u003cspan\u003e\u003cspan\u003elarge signal circuit for better circuit protection. \u003c!-- x-tinymce\/html --\u003eBluetooth 5.0 version with high-gain antenna, ensure more stable and faster transmission.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePropersize with exquisite appearance, aluminum alloy case is CNC machined and with anodizing process, more fashionable and durable, very suitable for home, office and desktop audio system use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eNotice:\u003c\/strong\u003e U-disk input is prior to Bluetooth input, so please make sure U-disk has been pulled out if you want Bluetooth input.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eParameters\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003eModel: Douk Audio M4\u003c\/li\u003e\n\u003cli\u003eChannel: 2.0 \/ 4.0\u003c\/li\u003e\n\u003cli\u003eAudio input: Bluetooth\/Stereo RCA\/U-disk\u003c\/li\u003e\n\u003cli\u003eAudio output: speaker sockets\u003c\/li\u003e\n\u003cli\u003eU-disk support format: MP3, WMA, APE, FLAC, WAV...\u003c\/li\u003e\n\u003cli\u003eU-disk capacity: max 32G\u003c\/li\u003e\n\u003cli\u003eBluetooth version: 5.0\u003c\/li\u003e\n\u003cli\u003eSpeaker impedance: 4-8Ω\u003c\/li\u003e\n\u003cli\u003eMax output power: 50W*4 (4Ω load)\u003c\/li\u003e\n\u003cli\u003eSNR: ≥98dB\u003c\/li\u003e\n\u003cli\u003eInput sensitivity: 0.775V\u003c\/li\u003e\n\u003cli\u003eTHD: 0.05%(1kHz 1W)\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 20Hz-20KHz(±3dB)\u003c\/li\u003e\n\u003cli\u003eWorking voltage: DC 12-24V\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eDimensions(W*D*H): 128*134*33mm \/ 5.04*5.28*1.30in\u003c\/li\u003e\n\u003cli\u003eNet weight: 533g \/ 1.18lb\u003c\/li\u003e\n\u003cli\u003ePackage weight: 1100g \/ 2.43lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e1*M4 Amplifier\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1*24V\/4.5A Power Supply\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1 Set*Raw Cable Speaker Jacks\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1*Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47198649778408,"sku":"SUC-M4-24V-US","price":79.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406895038696,"sku":"SUC-M4-24V-UK","price":79.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406895071464,"sku":"SUC-M4-24V-DE","price":79.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406895104232,"sku":"SUC-M4-24V-AU","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406895137000,"sku":"SUC-M4-24V","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/SUC-M4-newlogo_7.jpg?v=1703569686"},{"product_id":"douk-audio-st-01-hifi-bluetooth-5-0-tube-amplifier-usb-dac-coax-opt-digital-audio-amp-w-vu-meter","title":"Douk Audio ST-01 PRO HiFi Bluetooth 5.0 Tube Amplifier USB DAC COAX\/OPT Digital Audio Amp w\/VU Meter","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"celwidget aplus-module module-4 aplus-standard\" data-csa-c-id=\"a9gpjw-tpg7yn-1xyrn2-rfu333\" data-cel-widget=\"aplus-module-4\"\u003e\n\u003cdiv data-a-expander-name=\"aplus-module-expander\" data-a-expander-collapsed-height=\"700\" class=\"a-expander-collapsed-height a-row a-expander-container a-expander-partial-collapse-container\"\u003e\n\u003cdiv aria-expanded=\"false\" class=\"a-expander-content a-expander-partial-collapse-content\"\u003e\n\u003cdiv class=\"aplus-module-wrapper apm-fixed-width\"\u003e\n\u003cdiv class=\"apm-spacing\"\u003e\n\u003cdiv class=\"apm-floatleft apm-fixed-width\"\u003e\n\u003cdiv class=\"apm-spacing\"\u003e\n\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cspan\u003eWarm tips:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cspan\u003eIn addition to retaining all the original functions, ST-01 PRO is the latest upgraded version of ST-01:\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003e1. ST-01 PRO supports U-disk input to play lossless formats music.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003e2. Add sensitivity adjustment of VU meter on its bottom, easy to set and match better with different input signals.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003e3. Add three decorative golden circles around tubes and VU meter, looks more exquisite and luxury.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eUnique and amazing combination: integrated ST-01 PRO amplifier with VU meter into whole in such a mini size, the pointer dancing in the warm light with strong vintage feelings when enjoy HiFi music, dynamically decorates the audio system space. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eHiFi clear sound with tone control: resonable circuit and concise wiring, adopts vacuum tubes to soften the sound and filter out the digital feelings, sounds warm and sweet without noise. Also with treble and bass knobs to adjust one's own preferable sound styles, presents HiFi music with rousing highs and deep lows.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eStrong output power and special AUX output: use TI's classic power amp IC, each channel can output 100W(4Ω) and easily to drive all 3-8Ω passive speakers, adds 3.5mm AUX output easy to connect another amplifier or active speaker \/ subwoofer to build multiple channel system and enjoy wonderful home theater experience.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eWith multiple digital audio inputs: Bluetooth 5.0 \/ USB \/ Coaxial \/ Optical \/ stereo RCA, compatible with most audio device such as phones, computers, tablets, TVs, TV, CD players etc. The perfect combination of DAC and amplifier, very suitale for audiophiles who have various audio devices. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003ePractical functions to simplify use: with full-function remote control, all settings can be achieved from the distance; with input selection and indicators, clearly to show the working status in real time; aluminum alloy case is specially designed, cool and unique to decorate your desktop space.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eWarm tips:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e1. PC-USB input also supports mobile phones that with OTG functions, but Android system needs OTG cable and IOS system needs camera kit, please prepare by yourself. \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2. Pluggable tube socket, default 6K4 vacuum tubes, can be replaced by 6J1, 6J2, 6J3, 6J4, 6J5, 6\"1N, 6*4N, 6*5N, 5654\/5654W, 5725, 6AK5, EF95, 6BA6, 403B, etc.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e3.When the volume is turned down to minimum, the BT\/(USB) indicator will be flashing; and when to maximum, the PC-USB indicator will be flashing; At this time, the indicator of current input channel will go out but light on when the adjustment is stopped.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand: Douk Audio\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eModel: ST-01 PRO\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio input: Bluetooth \/ USB (PC-USB) \/ Coaxial \/ Optical \/ RCA \/ \u003cstrong\u003eU-disk (only ST-01 PRO supported)\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio output: Banana speaker jacks \/ 3.5mm AUX\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMax output power: 100W+100W (4Ω)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMatched impedance: 3-8Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSampling rate supported:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eUSB input: 96KHz\/24Bit\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBluetooth input: 48KHz\/24Bit\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCOAX\/OPT inputs: 192KHz\/24Bit    \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupported formats of U-disk: MP3 \/ WAV \/ WMA \/ FLAC \/ APE\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMax capacity of U-disk: 64G\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTreble \/ Bass adjustment range: ±6dB\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSystem PC-USB supported: XP\/W7\/W8\/W10\/MAC\/ Linux\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFrequency response: 20Hz-20kHz(±1dB)    \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eS\/N ratio: ≥98dB\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTHD: 0.07%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWorking voltage: DC 18-30V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDimensions(W*D*H): 115*98*54mm \/ 4.53*3.86*2.13in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage dimensions(W*D*H): 295*225*85mm \/ 11.61*8.56*3.35in\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 661g \/ 1.46lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 1.4kg \/ 3.09lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1*ST-01 PRO Amplifier\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1*DC 24V Power Adapter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1*Remote Control (without 2*AAA batteries)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1*USB Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1*Bluetooth Antenna\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1*User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47198668325096,"sku":"SUC-ST-01-PRO-24V-US","price":104.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406608285928,"sku":"SUC-ST-01-PRO-24V-UK","price":104.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406608318696,"sku":"SUC-ST-01-PRO-24V-DE","price":104.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406608351464,"sku":"SUC-ST-01-PRO-24V-AU","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406608384232,"sku":"SUC-ST-01-PRO-24V","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/SUC-ST-01-PRO_5.jpg?v=1728866904"},{"product_id":"douk-audio-x1-bluetooth-vacuum-tube-amplifier-desktop-amp-for-turntables-160wx2","title":"Douk Audio X1 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Desktop Audio Amp for Turntables 160Wx2","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eIntroduction\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003eDouk Audio X1 tube power amplifier is the fully upgrading version in all aspects, using JAN5725 vacuum tube to impove the sound quality, TDA7498E amp IC that can max output 160W+160W to drive all home speakers, integrating the function of phono preamp and amplifier to support MM phono turntables input, and adding a low frequency output that can connect active subwoofer to build 2.1 channel audio system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBluetooth 5.0 \u0026amp; Stereo RCA \u0026amp; MM Phono inputs: MM phono input, converts phono signal to line level signal and amplify it, with low-noise integrated circuits and high-quality components to ensure clear and clean sound. Bluetooth\u0026amp;RCA input, amplify the low level audio signal from your phone, tablet,MP3 etc. and provide enough output power for passive speaker, greatly improve the sound quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eJAN5654 vacuum tube \u0026amp; HiFi Sound: \u003cspan data-mce-fragment=\"1\"\u003edefault with JAN5725 tubes, improves everything associated with your music such as detail, transparency, immediacy, richness, dynamic, tone etc., much better than 6J1 series especially in human voice. Pluggable tube socket for tube rolling and sound-shaping, easy to pick from and alter the sound signature to one's preference.\u003c\/span\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSuper large output power \u0026amp; low frequency output: adopting TDA7498E amp IC whose max output power can reach 160W+160W(4Ω), and equipped with 32V\/5A power supply, easily to drive most home passive speakers. \u003cspan data-mce-fragment=\"1\"\u003eAnd adding subwoofer output, convenient to connect active subwoofer and build 2.1 stereo audio system.\u003c\/span\u003e  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePerfect Design \u0026amp; Powerful function: with tone control, easy to get more smooth and delicate sound by adjusting treble and bass knob, and bypass function is added to enjoy original sound. A bassboost switch is specially designed to greatly enhance bass effects, the shocking auditory effects make you feel like in the cinema. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMature Circuit \u0026amp; HiFi Components:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cblockquote data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDouble PCB design, perfectly integrated the MM phono circuit. Reasonable and concise layout, less wiring and less noise.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAdopting QCC3034 Bluetooth chip, with strong compatibility and supports APTX and APTX-HD lossless transmission.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNE5532 op amp responsible for pre-amplification and tone control, with excellent dynamic, rich details and wide sound field.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cblockquote data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eCustomized whole aluminum alloy case with good heat dissipation, and use Simens capacitors, NEC relay, red loop inductance, pure copper gold-plated terminas etc.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eExquisite Appearance \u0026amp; Proper Size: metal black case and vacuum tube with blue and orange decorating light looks fashionable and attractive, designed input switch \/ bass and tone pass \u0026amp; bypass switch, very convenient to use and suitable for stereo home and desktop audio system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" id=\"pastingspan1\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" id=\"pastingspan1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio input: Bluetooth 5.0 \/ stereo L\/R RCA \/ MM Phono \u0026amp; Turntables\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio output: banana speaker jacks \/ Low frequency output (connect active subwoofer)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBluetooth chip: QCC3034 (support APTX \/ APTX-HD)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAmp IC: TDA7498E\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOp amp: NE5532\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMax output power: 160W+160W(4Ω load)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSpeaker impedance: 4-8\u003cspan data-mce-fragment=\"1\"\u003eΩ\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency response: 20Hz-20KHz(±3dB)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSNR: \u0026gt;90dB\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTHD: 0.5%\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInput sensitivity: 0.775V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTreble and Bass range: ±6dB\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking voltage: DC 19V-35V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDimensions(W*D*H): 115*166*60mm \/ 4.53*6.54*2.36in\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage dimensions(W*D*H): 320*280*80mm \/ 12.60*11.02*3.15in\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNet weight: 782g \/ 1.72lb\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage weight: 1400g \/ 3.09lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*X1 Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2*JAN5725 Vacuum Tube\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1*32V\/5A Power Supply\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1*Bluetooth Antenna\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*User Manual \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47401204777192,"sku":"SUC-X1-32V-US","price":139.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47401204809960,"sku":"SUC-X1-32V-UK","price":139.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47401204842728,"sku":"SUC-X1-32V-DE","price":139.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47401204875496,"sku":"SUC-X1-32V-AU","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47401204908264,"sku":"SUC-X1-32V","price":148.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_614f8149-586c-450d-9174-26c7e08a61c2.jpg?v=1744601260"},{"product_id":"douk-audio-l1-mini-stereo-line-level-booster-amplifier-audio-preamp-20db-gain-volume-control","title":"Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp 20dB Gain w\/Volume Control","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eIntroduction\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\n\u003cbr\u003eDouk Audio L1 is a stereo amplifier with built-in voltage boost and amplification circuits, designed to boost the output of virtually any line level audio source (such as TV, video games, MP3 players, ipod, phone, tablet etc.) to max 20dB. L1 features its wide gain range, wide frequency response, excellent S\/R and HiFi sound, to bump the output level of the audio devices which are with an inherently low level output so as to match other sources, or to allow the use of a longer cable run than normal between components.\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMutiple input\/output interfaces: with 3.5mm AUX\/stereo RCA\/5-DIN inputs and stereo RCA\/5-DIN outputs, can be compatible with most low-volume audio sources such as ipod, ipad, phone, TV, MP3 player,  potable CD player, computer, video game etc., and boost their output to the level needed to drive amplifier or speakers.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWith built-in amplification and voltage boost circuit: adjustable gain to match better with different audio sources, support DC 5-24V wide input voltage that can share the power supply of amplifiers, while L1 can always work at a high voltage of 26V to provide ±12.5V high output amplitude and max 20dB high gain.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eUnique design and HiFi clear sound: double-side PCB design, NE5532P op amp with pluggable socket design, convenient to change other op amps to enjoy different sound and bring much DIY fun for audiophiles. High-qaulity sealed potentiometer, with wide frequency bandwidth and excellent dynamic response, the sound is smooth and natural, warm and delicate with ultra-low distortion.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMini size with exquisite appearance, compact and all-metal design for durability and shielding the electronics from electromagnetic interference with noise rejection. Perfect design in size and function,  suitable for many scenarios to increase the output level, such as home stereo system, mixer or speaker setup, karaoke, audio recording, party, live stage event etc.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003chr\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\u003cstrong\u003eWarm tips\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e3.5mm AUX input with priority, please make sure AUX cable has been disconnected if you want 5-DIN or stereo RCA input.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e5-DIN and stereo RCA output can work at the same time.\u003c\/li\u003e\n\u003cli\u003eEquipped with USB to DC cable, NOT include power adapter, can use phone charger\/power bank\/computer to power it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003eAudio input: 3.5mm AUX \/ Stereo RCA \/ 5-DIN\u003c\/li\u003e\n\u003cli\u003eAudio output: Stereo RCA \/ 5-DIN\u003c\/li\u003e\n\u003cli\u003eGain: 20dB (Adjustable)\u003c\/li\u003e\n\u003cli\u003eFrequency response: 20Hz-20KHz ( ± 0.5dB)\u003c\/li\u003e\n\u003cli\u003eTHD: 0.06% Max\u003c\/li\u003e\n\u003cli\u003eS\/N ratio: \u0026gt;80dB\u003c\/li\u003e\n\u003cli\u003eInput sensitivity: 150mW\/50KHz at 1KHz\u003c\/li\u003e\n\u003cli\u003eMax output amplitude: ±12.5V\u003c\/li\u003e\n\u003cli\u003eInput voltage: DC 5-24V\u003c\/li\u003e\n\u003cli\u003eWorking voltage of amplification part: DC 26V\u003c\/li\u003e\n\u003cli\u003eDimensions(W*D*H): 87*63*48mm \/ 3.43*2.48*1.89in\u003c\/li\u003e\n\u003cli\u003ePackage dimensions(W*D*H): 150*90*110mm \/ 5.91*3.54*4.33in\u003c\/li\u003e\n\u003cli\u003eNet weight: 155g \/ 0.34lb\u003c\/li\u003e\n\u003cli\u003ePackage weight: 400g \/ 0.88lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003e1*L1 Stereo Line Level Booster\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1*USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1*3.5mm to RCA Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1*2:2 RCA Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eWho Needs Douk Audio L1 Stereo Line Level Booster?\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWant to correct the sonic mismatch issues that often cause the output volume of portable players\/MP3\/computer lower than other home audio devices, resulting in distorted sound performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eWant to enhance the output level of karaoke players or CD\/DVD player to transform your stereo music to thrilled sound for party or outdoor events, provide low-noise and high musical accuracy for listening and recording.\u003c\/li\u003e\n\u003cli\u003eWant to provide an external way of volume control for any audio source device or stereo amplifier that has no output level or volume adjustment of its own.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406947336424,"sku":"XZ-L1-US","price":39.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406947369192,"sku":"XZ-L1-UK","price":39.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406947401960,"sku":"XZ-L1-DE","price":39.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406947434728,"sku":"XZ-L1-AU","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406947467496,"sku":"XZ-L1","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/XZ-L1_1.jpg?v=1650965109"},{"product_id":"douk-audio-u3-mini-class-a-headphone-amplifier-hifi-desktop-home-stereo-amp-dc5v","title":"Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Stereo Amp for HD650\/K701\/DT880\/T70\/RS1e","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003eWarm tips:\u003c\/strong\u003e \u003cbr data-mce-fragment=\"1\"\u003eNot inlcude power adapter, recommend to use original high-quality power adapter above 5W. \u003cbr data-mce-fragment=\"1\"\u003eFor example: the current should be above 1A if use DC 5V while need above 0.5A if use DC 12V power adapter.\u003c\/span\u003e\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAdopting innovative circuit design, DC 5-20V wide input working voltage, the amplifier circuit can always work at a high voltage of 26V, and the background noise index is excellent. With wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAdopting original TI-NE5532 classical op amp and transistor expanding current circuit, using 1300mA large current output transistor working in class A status, with ultra-low distortion, and the sound is warm and delicate, full and mellow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePluggable op amp socket design, convenient to upgrade different op amps and bring much DIY fun and playability for audiophiles. Smooth and mellow sound, suitable for listening to vocals or string music, classic or pop music, and even with unique charm when playing rock.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMini size with exquisite appearance and most cost-effective, brings big surprise for all audiophiles, easily to drive most headphones in the market, providing larger power, better sound field and details, very suitable for home\/office desltop audio system use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWith stong drive power, easily to drive most high-impedance headphones such as:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cblockquote data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eHD580\/HD600\/HD650\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eK701\/K702\/Q701\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDT880\/T70\/T90\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSR225\/SR325\/RS1e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eParameters:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio input: stereo L\/R RCA\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio output: 6.35mm headphone jack (with 6.35mm to 3.5mm adapter)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOutput power: ≥1300mW (32Ω)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMatched headphone impedance: 18-600Ω\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency response: 20-30KHz\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSignal to noise ratio: ≥110DB\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMax output amplitude voltage: 25V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInput voltage: DC 5-20V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDimension(W*D*H): 67*93*30mm \/ 2.64*3.66*1.18in\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNet weight: 169g \/ 0.37lb\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage weight: 310g \/ 0.68lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1*U3 Headphone Amplifier\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*6.35mm to 3.5mm Headphone Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406714618088,"sku":"XZ-U3-US","price":36.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406714650856,"sku":"XZ-U3-UK","price":36.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406714683624,"sku":"XZ-U3-DE","price":36.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406714716392,"sku":"XZ-U3-AU","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406714749160,"sku":"XZ-U3","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/XZ-U3-P_1.jpg?v=1650965746"},{"product_id":"douk-audio-u5-mini-fully-balanced-headphone-amplifier-for-xlr-4-4mm-headsets","title":"Douk Audio U5 Mini Fully Balanced Headphone Amplifier for XLR \/ 4.4mm Headsets","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e【Fully balanced headphone amplifier】Adopting fully balanced amplifier circuit and innovative circuit design, the amplifier circuit of U5 always works at a high voltage of 24V even if input DC 5V, with wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e【Easily to drive low or high impedance headphones】For a total power output of up to 1400mW under a 32Ω load, U5 can easily power headphones with any low or high impedance (18-600Ω). Volume knob allows you to smoothly adjust volume without any undesirable noise nor any channel imbalances.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e【Pure analog design to reproduce music truly】Pure analog amplification circuit and analog control, show you the truest sound, all aspects are in the top-class such as sound field, sound position, details etc.. Adopt original JRC4580 classical op amp, pluggable socket design, convenient to upgrade different op amps to enjoy other sound styles.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e【Most cost-effective amp on the market】Mini size and exquisite appearance, and with low distortion, high power and a pure, uncolored sound, you’ll experience subtle details and shocking swings in your music effortlessly. U5, the best helper for all xlr\/4.4mm headphones to improve their sound quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWarm tips\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eWithout DC 5V power adapter, you can use your phone charger, input over 5V will result in damage.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eAudio input: stereo L\/R XLR ( 3-core, female)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eAudio output: XLR ( 4-core, female) \/ 4.4mm \u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eOutput power: ≥1400mW (32Ω)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eMatched headphone impedance: 18-600Ω\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eFrequency response: 20-30KHz\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eSignal to noise ratio: ≥110DB\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eTHD: 0.005%\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eInput voltage: DC 5V (recommend above 1A)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eDimension(W*D*H): 68*69*28mm \/ 2.68*2.72*1.50in\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eNet weight: 149g \/ 0.33lb\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage weight: 500g \/ 1.10lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e1*U5 Headphone Amplifier\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406747975912,"sku":"XZ-U5-US","price":52.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406748008680,"sku":"XZ-U5-UK","price":52.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406748041448,"sku":"XZ-U5-DE","price":52.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406748074216,"sku":"XZ-U5-AU","price":52.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406748106984,"sku":"XZ-U5","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/XZ-U5-cadisi-Y_1.jpg?v=1668577222"},{"product_id":"douk-audio-hifi-vacuum-tube-power-amplifier-home-stereo-pure-class-a-single-ended-audio-amp","title":"Douk Audio F5 HiFi Vacuum Tube Amplifier Pure Class A Single-ended Stereo Audio Amp","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eFeatures \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWith 2 groups of stereo RCA inputs, can be perfectly compatible with most audio sources such as Phone, MP3, tablet, TV, computer, CD players etc., adds input selector to avoid plugging cables repeatedly, providing HiFi listening experience via convenient use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAdopting high-current double triode 6N for voltage amplification, and 6L6 for single-ended power amplification, provides large driving current, warm and rich sound, full and thick in mid-bass, and transparent and smooth in treble. Effectively filter the digital sound, reduce noise and improve the dynamics. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAdopting imported 150W large power transformer, ensure 15W \"No Large Loop Feedback\" ultra-linear audio output transformer, Using unique cross-composite winding method to greatlyt reduce the leakage inductance. Ensure sufficient power, easily to drive most home passive speakers.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eProper size with exquisite appearance, silver aluminium alloy chassis with fine surface treatment, 0.35mm imported iron core, APLS potentiometer, famous imported capacitor etc., attractive and durable. Simple design and pure clear sound, very suitable for stereo home and desktop audio system.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eWarm tips\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003ePluggable tube socket design, you can also change the tubes (6L6--6P3P\/EL34\/6550\/KT66, 6N1--6H1\/ECC85) to get enjoy different sound styles.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eAudio input: 2 groups of stereo RCA\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eAudio output: banana speaker jacks\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eTube Model: 6L6×2+6N1×1\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eOutput power: 6W+6W\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eOutput impedance: 4Ω\/8Ω  \u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eFrequency response: 35Hz-25KHz\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eS\/N ratio: 88db\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eI\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003enput sensitivity: 750mW\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eInput impedance: 100K\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003ePower transformer: 150W\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eWorking voltage: AC 110V (not available currently) \/ 220V\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eDimensions(W*D*H): 230*205*160mm \/ 9.06*8.07*6.30in\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eNet weight: 6.57kg \/ 14.48lb\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage weight: 8.0kg \/ 17.64lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e1*Tube Amplifier\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*Power Cord\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406470299880,"sku":"DJ540-US","price":459.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406470332648,"sku":"DJ540-UK","price":459.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406470365416,"sku":"DJ540-DE","price":459.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406470398184,"sku":"DJ540-AU","price":459.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406470430952,"sku":"DJ540","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/1_0edfb2a7-dc41-43cf-8dcf-8cea3381c9f4.jpg?v=1651031198"},{"product_id":"ampapa-a1-mini-5654-vacuum-tube-preamp-phono-turntable-amplifier-w-tone-control","title":"Ampapa A1 Mini 5654 Vacuum Tube Preamp Phono\/Turntable Amplifier w\/Tone Control","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNobsound \/ Douk Audio is the only authorized distributor of Ampapa A1.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eIntroduction\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eA1 tube preamp \/ phono preamp \/ headphone amp is the first product carefully designed by Ampapa, with high-end configuration, powerful functions and amazing looking. Ampapa, always devoted to exploring the design innovation of HiFi and amplifying all passion for music.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eFeatures\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eAmpapa A1, more than one simple preamp:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMM input, converts phono signal to line level signal, with low-noise integrated circuits and high-quality components to ensure clear and clean sound.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eStereo RCA input, amplifies the low level audio signal from your phone, tablet, PC, MP3 etc., easier to drive amplifiers or active speakers and greatly improve the sound quality.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eJAN5654 tubes and HiFi vintage analog sound: reveal a sound that is both warm and fine, highlight great musicality, and improve everything associated with music such as detail, transparency, immediacy, richness, dynamic, tone etc.. Ceramic silver-plated pluggable tube socket for tube rolling and sound-shaping, easy to replace according to one's preference.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTone Control and 3.5mm headphone output: get more delicate and smooth sound by adjusting treble \/ bass knob, presenting music with rousing highs and deep lows and rejuvenating your audio system. Reasonable and advanced architecture, adds classic headphone amp circuit (2*NE5532), easily to drive 16-300 ohm headphones. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eExcellent performance and amazing design: all details full of texture, provide different acoustic enjoyment with large dynamic and sweet tube sound even in limited space. Using high-quality components, solid aluminum alloy knobs, unique appearance modeling decorates with warm orange \/ cool green lights etc., all is for the best listening experience. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eWarm tips:\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e1. A1 is designed with pluggable tube socket, compatible with 6J1, 6K4, 6J5, GE5654W, 6*1N, 6*2N, 6J5, 6A2, etc., can be replaced directly. \u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2. Stereo RCA output and 3.5mm headphone output can work at the same time, and the volume \/ treble \/ bass of two outputs are controlled simultaneously. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003eParameters\u003cbr\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Ampapa\u003c\/li\u003e\n\u003cli\u003eModel: A1\u003c\/li\u003e\n\u003cli\u003eAudio input: Phono MM \/ Stereo RCA\u003c\/li\u003e\n\u003cli\u003eAudio output: Stereo RCA \/ 3.5mm Headphone Jack\u003c\/li\u003e\n\u003cli\u003eInput level: 0.775V RMS (RCA) \/ 0.005V RMS (Phono)\u003c\/li\u003e\n\u003cli\u003eFrequency response: 20Hz-20KHz (±0.5dB) (RCA) \/ Ref to RIAA +\/-2dB (Phono)\u003c\/li\u003e\n\u003cli\u003eHeadphone output power: 125mW (32Ω)\/62.5mW(64Ω)\/30mW(128Ω)\u003c\/li\u003e\n\u003cli\u003eHeadphone impedance range: 16-300Ω\u003c\/li\u003e\n\u003cli\u003eTHD: ≤0.1%\u003c\/li\u003e\n\u003cli\u003eOutput level: 1.5V RMS (RCA) \/ 0.6V RMS (Phono)\u003c\/li\u003e\n\u003cli\u003eS\/N ratio: ≥106dB (RCA) \/ ≥80dB(Phono)\u003c\/li\u003e\n\u003cli\u003eWorking voltage: DC 12V(≥1.5A)\u003c\/li\u003e\n\u003cli\u003ePackage weight: 900g \/ 1.98lb\u003c\/li\u003e\n\u003cli\u003ePackage dimensions (W*D*H): 260*145*78mm \/ 10.24*5.71*3.07in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePacking List\u003c\/span\u003e\u003c\/div\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*A1 Preamp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2*5654 Vacuum Tube\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*DC 12V Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*RCA Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*Wiping Cloth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*Warranty\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47406558281960,"sku":"SUC-A1-US","price":129.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406558314728,"sku":"SUC-A1-UK","price":129.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406558347496,"sku":"SUC-A1-DE","price":129.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406558380264,"sku":"SUC-A1-AU","price":129.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406558413032,"sku":"SUC-A1","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/SUC-A1-2022_4.jpg?v=1663234890"},{"product_id":"douk-audio-u10-mini-tube-headphone-amplifier-hifi-stereo-preamp-for-home-speaker","title":"Douk Audio U10 Mini Tube Headphone Amplifier HIFI Stereo Preamp for Home Speaker","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eU10 headphone amplifier with strong power:  stereo 3.5mm AUX and RCA inputs, compatible with most audio source such as MP3, phones, computers, CD players etc.. Dual headphone jacks (3.5\/6.35mm) output up to 1100mW, easily to drive all 18-600Ω headphones; U10 also can be used as a preamp to improve the sound quality for amplifiers or active speakers.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eAdvanced design and HIFI sound: innovative built-in voltage boost circuit, U10 always works at a high voltage of 24V even only powered by DC 5V, the sound with deadly quiet background, amazing purity and transparency, accurate position and wide sound field, easy use and unrivalled sound are both achieved at the same time.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003ePluggable design with higher playability: 2PCS 6A2 tubes are adopted to soften and warm the audio, sounds real and natural, full and mellow, delicate and sweet. Both tubes and op amps are designed with pluggable socket, convenient for tube rolling, op amp upgrading and sound-shaping, different styles of sound can be enjoyed easily.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eExcellent manufacturing and most cost-effective: all metal case with good shielding, pure ceramic tube socket with antioxidant contact etc., U10 provides excellent sound and strong power for your headphones in such a mini size, specially suitable for the audiophiles who love listening to vocals, string music, light or classic music etc..\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eWarm tips:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e1. Not inlcude power adapter, recommend to use original high-quality power adapter (DC5V\/≥2A ). U10 won't work normally if the current below 2A.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e2. Inputs (3.5mm \/ RCA) and outputs (6.35mm\/3.5mm jack) are connected in parallel, in other words, all inputs and outputs work simultaneously. Don't connect 3.5mm and RCA inputs at the same time, or else audio signals will be mixed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e3. Pluggable tube socket design, 6A2 can be replaced by the following models:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e6J1、6ж1П、6AK5、6BC5、403A\/B、5654、EF40、EF95、CV850、6J2、6ж2П、6AS6、CV2522、EF11\/732、CV4011、6J3、6ж3П、EF96、CV848、6BC6、6AG5、 6J4、6ж4、6136、6BX6、6AC7、EF94、6AU6、6K4、6K5、6K4П、6BA6、6DA6、EF89\/93、5749\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e4. U10 can easily drive all headphones even with high-impedance such as HD580\/HD600\/HD650 \/ K701\/K702\/Q701 \/ DT880\/T70\/T90 \/ SR225\/SR325\/RS1e etc.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eParameters:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand: Douk Audio\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eModel: U10\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio input: 3.5mm AUX \/ Stereo RCA\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio output: 3.5mm \/ 6.35mm headphone jack\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTube Model: 6A2 (2PCS)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOp amp model: NE5532 (2PCS)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFrequency response: 20Hz-30KHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eOutput power: ≥1100mW (32Ω)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMatched headphone impedance: 18-600Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSignal to noise ratio: ≥110DB\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eInput voltage: DC 5V (≥2A)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWorking voltage inside: DC 24V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eNet weight: 200g \/ 0.44lb\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage weight: 300g \/ 0.66lb\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDimensions (W*D*H): 69*95*30mm \/ 2.72*3.74*1.18in (not including tubes)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage Dimensions (W*D*H): 132*85*90mm \/ 5.20*3.35*3.54in\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1 × U10 Headphone Amplifier\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e2 × 6A2 Tube\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1 × Acrylic Board\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1 × USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1 × User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406711111912,"sku":"XZ-U10-US","price":49.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406711144680,"sku":"XZ-U10-UK","price":49.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406711177448,"sku":"XZ-U10-DE","price":49.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406711210216,"sku":"XZ-U10-AU","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406711242984,"sku":"XZ-U10","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/1_3341d812-e0b5-4f00-b4cd-18d84d69cb2d.jpg?v=1679712496"},{"product_id":"nobsound-q10-hifi-bluetooth-5-0-digital-amplifier-mini-aux-optical-stereo-audio-power-amp-100w","title":"Nobsound Q10 HiFi Bluetooth 5.0 Digital Amplifier Mini AUX\/Optical Stereo Audio Power Amp 100W","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv align=\"center\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eWarm tips:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1. Optional 19V\/4.74A power supply, if you buy the version without power adapter or want higher output please prepare a large power supply by yourself(DC9-24V).\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2. With a thin protection film on front display panel, please tear it off before use if there are scratches.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e3 kinds of input modes: with Bluetooth\/AUX\/Optical inputs, and equipped with AUX cable, RCA cable and Optical cable, matched well with most audio devices such as phones, tablets, TV, CD players. etc. And Bluetooth 5.0 chip can achieve low latency and up to 50ft transmission.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-performance chip \u0026amp; sufficient output power: Adopt TPA3221 class D audio chip, less than 0.001% distortion; and each channel can max output up to 100W, easily driving many home\/desk speakers. Compact design with low heat rejection and safe to use.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOne knob control all functions: short press the knob can power on\/off the amplifier, and long press can switch to Bluetooth\/AUX\/Optical inputs, rotate the knob can adjust the volume, without any complicated button, very convenient to use. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAdvanced design and perfect details: DC 9V-24V wide working voltage, easy to use at home or on the road. With complete protection circuits, input indicators and volume display to make it easier to use, powerful and practical, specially designed for smaller listening spaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eParameters:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Nobsound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: Q10\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: AUX \/ Bluetooth \/ Optical\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: banana speaker jacks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBluetooth version: 5.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChip: TPA3221\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMax output power: 100W+100W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 20Hz-20kHz (±3dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eS\/N ratio: ＞89dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD: ＜0.001%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorking voltage: DC 9-24V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions(W*D*H): 77*22*62mm \/ 3.03*2.44*0.87in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 116g\/0.26lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight without power adapter: 300g\/0.66lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight with power adapter: 600g\/1.32lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003e1× Q10 Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1× 19V Power Supply(optional)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1× 3.5mm AUX Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1× RCA Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1× Optical Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1× User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"Without Power Supply \/ US","offer_id":44525357826280,"sku":"DZ099-US","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ UK","offer_id":47411120570600,"sku":"DZ099-UK","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ EU","offer_id":47411120603368,"sku":"DZ099-DE","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ AU","offer_id":47411120636136,"sku":"DZ099-AU","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Other","offer_id":47411120668904,"sku":"DZ099","price":36.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ US","offer_id":44525357859048,"sku":"DZ099-19VDY-US","price":47.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ UK","offer_id":47411120701672,"sku":"DZ099-19VDY-UK","price":47.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ EU","offer_id":47411120734440,"sku":"DZ099-19VDY-DE","price":47.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ AU","offer_id":47411120767208,"sku":"DZ099-19VDY-AU","price":47.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Other","offer_id":47411120799976,"sku":"DZ099-19VDY","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/DZ099_11.jpg?v=1684979258"},{"product_id":"nobsound-ns-14g-bluetooth-hifi-2-1-channel-power-amplifier-subwoofer-stereo-audio-amp","title":"Nobsound NS-14G Bluetooth HiFi 2.1 Channel Power Amplifier Subwoofer Stereo Audio Amp","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003eFeatures\u003c\/p\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2 kinds of audio input: support Bluetooth to achieve stable \u0026amp; high-speed transmission, with stereo RCA input, almost compatible with all home audio devices such as phones, tablets, computers, CD players etc..\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eClassic chips and 2.1 channel system: adopts TPA3116 chip, with AUX and speakers output, easy to build multi-channel system and the max output power can reach 50W*2(L\/R) and 100W(subwoofer).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePowerful design: besides input selector, also with abundant adjustable knobs to meet different listening needs, including main volume, treble and bass, subwoofer frequency and volume, even the balance of L\/R channel can be adjusted according to your preferences and enjoy music.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAttractive appearance: Mini size with elegant aluminum shell, black and red knobs design make it more fashionable, practical and powerful. DC 15-24V voltage, suitable for home and desktop audio system use and enjoy high-quality music.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003eParameters\u003c\/p\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio input: Bluetooth\/Stereo RCA\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio output: AUX\/Banana speaker jacks\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNumber of channels: 2.1\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMax output power: 50W*2(L\/R channel)+100W(subwoofer)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSpeaker impedance: 4-8Ω(L\/R)\u003cbr data-mce-fragment=\"1\"\u003e                                 2-8Ω(subwoofer)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTreble and bass adjustment range: ±6dB\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAUX max output level: 1.2V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBass cutoff frequency: 40-120Hz\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInput sensitivity: 0.775V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency response: 20Hz-20KHz(±2dB)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTHD: 0.07%(1kHz)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSNR: ≥92dB\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking voltage: DC 15-24V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage dimensions(W*D*H): 133*125*36mm \/ 5.24*4.92*1.42in\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNet weight: 580g \/ 1.28lb\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage weight: 1.2kg \/ 2.65lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003ePacking List\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1× NS-14G Power Amplifier\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1× 24V\/4.5A Power Supply\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1× Bluetooth Antenna\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47198661443816,"sku":"SUC-NS-14G-24V-US","price":99.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406939701480,"sku":"SUC-NS-14G-24V-UK","price":99.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406939734248,"sku":"SUC-NS-14G-24V-DE","price":99.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406939767016,"sku":"SUC-NS-14G-24V-AU","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406939799784,"sku":"SUC-NS-14G-24V","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/SUC-NS-14G_4.jpg?v=1690270229"},{"product_id":"nobsound-av-525-hifi-bluetooth-5-0-vacuum-tube-amplifier-coaxial-optical-integrated-audio-amp","title":"Nobsound AV-525 HiFi Bluetooth 5.0 Vacuum Tube Amplifier Coaxial \/ Optical Integrated Audio Amp","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 18.6667px; background-color: #ffffff;\"\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 18.6667px; background-color: #ffffff;\"\u003eWarm tips:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #000000; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 300; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-size: 14pt; font-family: 'Times New Roman';\"\u003eO\u003c\/span\u003e\u003cspan style=\"color: #000000; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 300; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-size: 14pt; font-family: 'Times New Roman';\"\u003enly in the condition of large dynamic music and much bass effect the VU meter will work.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-family: 'Times New Roman'; font-size: 14pt;\" id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli\u003eWith 5 kinds of analog and digital audio input (Bluetooth 5.0 \/ USB \/ Coaxial \/ Optical \/ 2 groups of RCA), compatible with almost all audio devices such as MP3, phone, tablet, computer, CD players etc. to meet different needs of home audio systems. U-disk input supports lossless formats such as APE, FLAC, WAV etc., easy to enjoy HiFi music.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eBesides speaker output (4\/6\/8Ω), a low frequency output is specially designed to connect active subwoofer to build 2.1 channel audio systems, which can strengthen bass sound effects to bring more shocking experience just like in the cinema. With treble and bass control to bring more delicate sound according to your own listening style.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eIntegrated design of vacuum tubes and transistors, using EL84\/6K4\/5726 tube for pre-amplificatoin, WY2P tube for rectification, the sound is clear, warm, smooth and delicate. And using 4PCS Toshiba 5200 and 4PCS 1943 transistors for power amplification, dual toroidal transformers is added that can stably output max 100W in each channel, easily to drive all home passive speakers.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003eUnique design and attractive appearance, exquisite black panel and retro vacuum tube are combined that looks luxurious and elegant. With dual VU meter to dynamically to decorate the listening enjoyment, and display screen can show the working status in real time, very suitable for home and desktop audio system use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14pt; font-family: 'Times New Roman';\"\u003eParameters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14pt;\" id=\"pastingspan1\"\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eAudio input: Bluetooth \/ 2 groups of RCA \/ USB(U-disk) \/ Coaxial \/ Optical\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eAudio output: speaker jack \/ low frequency output (connect active subwoofer)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eU-disk supported sampling rate: 16Bit\/48KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eU-disk supported formats: MP3\/WAV\/APE\/FLAC\/WMA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eU-disk max storage capacity: 128G\u003c\/span\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eBluetooth version: 5.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eOutput impedance: 4-16Ω \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eRated output power: 100W+100W @4Ω\u003c\/span\u003e\n\u003cdiv\u003e                                   70W+70W @8Ω\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eFrequency response: 20HZ-20KHZ(±2dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003ePower consumption: 300W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eInput impedance: 47KΩ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eInput sensitivity: 800mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eTreble and Bass range: ±9dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eSignal to noise ratio: ≥88dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eSeparation: ≥80dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eTHD: 0.1%(1KHz)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eDimensions(W*D*H): 330*315*160mm \/ 12.99*12.44*6.30in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003ePackage dimensions(W*D*H): 380*350*210mm\/ 14.96*13.78*8.30in\u003c\/span\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003eNet weight: 7.16kg \/ 15.79lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: 14pt;\"\u003ePackage weight: 9.0kg \/ 19.84lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv style=\"font-size: 14pt; font-family: 'Times New Roman';\" id=\"pastingspan1\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14pt; font-family: 'Times New Roman';\" id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli\u003e1*Tube Amplifier\u003c\/li\u003e\n\u003cli\u003e1*Power Cord\u003c\/li\u003e\n\u003cli\u003e1*Remote Control(without battery)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47401194062056,"sku":"DJ525-US","price":459.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47401194094824,"sku":"DJ525-UK","price":459.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47401194127592,"sku":"DJ525-DE","price":459.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47401194160360,"sku":"DJ525-AU","price":459.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47401194193128,"sku":"DJ525","price":459.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_8f496a06-9534-4515-951b-17845ca919db.jpg?v=1761544234"},{"product_id":"douk-audio-h7pro-tpa3255-digital-amplifier-w-vu-meter-300w-home-stereo-power-amp","title":"Douk Audio H7PRO TPA3255 Digital Amplifier w\/VU Meter 300W Home Stereo Power Amp","description":"\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eIntroduction\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eH7PRO is a mini digital amplifier designed by Douk Audio, combining a compact design with exceptional performance. Adopting a TPA3255 amp chip, the power output up to 300W for each channel can effortlessly drive 4-8Ω speakers, delivering impressive sound quality. With single-ended RCA and balanced XLR inputs, preamp RCA output besides speaker jacks output, easily to build multi-channel systems. Two VU meters are added with pointer swinging in real-time with audio signal changes, to get both auditory and visual enjoyment.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eCompact but output strong power: H7PRO features the TPA3255 high-end digital class D amp chip, max power output of per channel can up to 300W, it can effortlessly drive 4-8Ω speakers, delivering impressive sound quality. Its compact size makes it suitable for various applications, from bookshelves and desktop setups to home theaters.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDual VU meter design and balance control: based on H7 and after collecting lots of helpful advice from our users, H7PRO designed with dual VU meters for left and right channel that dynamically swing with changes in the audio signal. The independent volume control of the L\/R channel is removed and the balance control is added to adjust the balance volume of the left and right speakers for a more even and natural sound.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDual analog inputs and preamp output: H7PRO combines a minimalist design with exceptional function. Besides standard RCA input, also with a balanced XLR input to minimize interference and reduce noise floor. H7PRO also features its preamp RCA output, another amplifier and active speaker\/subwoofer can be connected to build 2.1 or multi-channel home theater systems.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudiophile-grade components and sound: H7PRO adopts Japanese ELNA and Rubycon filter array, professional audio inductors and all-sealed precision potentiometer etc., with an SNR of up to 110dB and ultra-low noise floor to deliver exceptional clarity and low distortion. Traditional design but with enough heat dissipation area to ensure optimal performance and long-time stable working.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRefined craftsmanship and attractive appearance: CNC-machined, customized all-aluminum alloy construction, ensuring both longevity and a luxurious feel. VU meters to show the volume in real-time, harmoniously combine retro charm with contemporary design, let us experience a HIFI musical journey through time via Douk Audio H7PRO.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWarm tips:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1.The RCA output is pre-amplified, its output level and the speaker jacks output are controlled by the main volume synchronously.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2.\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eThere are two sensitivity adjustments for two VU meters on the bottom of H7PRO, one is responsible for the left channel and another is for the right.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBrand: Douk Audio \u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel: H7PRO\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: single-ended RCA \/ balanced XLR\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: banana speaker jacks \/ stereo RCA\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax output power: 300Wx2 (@4Ω)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMatched speaker impedance: 4-8Ω\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20Hz-20KHz (±0.8dB)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput sensitivity: 2V    \u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax output level of RCA: 2V\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD: 0.008%\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR: ≥110dB\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking voltage: DC 24-48V\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions(W*D*H): 167*126*42mm \/ 6.57*4.96*1.65in\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage dimensions(W*D*H): 310*240*70mm \/ 12.20*9.45*2.76in\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight: 803g \/ 1.77lb\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight ( with 32V power adapter): 1.42kg \/ 3.13lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003ePower Output Table of H7PRO\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003ctable style=\"border-collapse: collapse; width: 51.1937%; height: 190px;\" border=\"1\" data-mce-fragment=\"1\" data-mce-style=\"border-collapse: collapse; width: 51.1937%; height: 190px;\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 24.362%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 24.362%; height: 19px;\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 22.5934%; height: 19px;\"\u003eSpeaker Impedance\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 23.4775%; height: 19px;\"\u003eRated Output Power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 24.362%;\" rowspan=\"3\" data-mce-fragment=\"1\" data-mce-style=\"height: 57px; width: 24.362%;\"\u003e32V\/5A\u003c\/td\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 22.5934%; height: 19px;\"\u003e4Ω\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 23.4775%; height: 19px;\"\u003e78W+78W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 22.5934%; height: 19px;\"\u003e6Ω \u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 23.4775%; height: 19px;\"\u003e71W+71W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 22.5934%; height: 19px;\"\u003e8Ω \u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 23.4775%; height: 19px;\"\u003e65W+65W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 24.362%;\" rowspan=\"3\" data-mce-fragment=\"1\" data-mce-style=\"height: 57px; width: 24.362%;\"\u003e48V\/5A\u003c\/td\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 22.5934%; height: 19px;\"\u003e4Ω\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 23.4775%; height: 19px;\"\u003e120W+120W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 22.5934%; height: 19px;\"\u003e6Ω \u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 23.4775%; height: 19px;\"\u003e110W+110W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 22.5934%; height: 19px;\"\u003e8Ω\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 23.4775%; height: 19px;\"\u003e102W+102W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 24.362%;\" rowspan=\"3\" data-mce-fragment=\"1\" data-mce-style=\"height: 57px; width: 24.362%;\"\u003e48V\/10A\u003c\/td\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 22.5934%; height: 19px;\"\u003e4Ω\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 23.4775%; height: 19px;\"\u003e250W+250W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 22.5934%; height: 19px;\"\u003e6Ω \u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 23.4775%; height: 19px;\"\u003e210W+210W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 22.5934%; height: 19px;\"\u003e8Ω\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\" data-mce-fragment=\"1\" data-mce-style=\"width: 23.4775%; height: 19px;\"\u003e185W+185W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×H7PRO Amplifier\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×DC 32V Power Adapter (optional)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×DC 48V Power Adapter (optional) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"Without Power Adapter \/ US","offer_id":45596064645352,"sku":"SUC-H7-PRO-DJ-US","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47406734606568,"sku":"SUC-H7-PRO-DJ-UK","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47406734639336,"sku":"SUC-H7-PRO-DJ-DE","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47406734672104,"sku":"SUC-H7-PRO-DJ-AU","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47406734704872,"sku":"SUC-H7-PRO-DJ","price":109.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ US","offer_id":45596064678120,"sku":"SUC-H7-PRO-32V-US","price":119.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ UK","offer_id":47406734737640,"sku":"SUC-H7-PRO-32V-UK","price":119.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ EU","offer_id":47406734770408,"sku":"SUC-H7-PRO-32V-DE","price":119.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ AU","offer_id":47406734803176,"sku":"SUC-H7-PRO-32V-AU","price":119.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ Other","offer_id":47406734835944,"sku":"SUC-H7-PRO-32V","price":129.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ US","offer_id":47198647943400,"sku":"SUC-H7-PRO-48V-S-US","price":139.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ UK","offer_id":47406734868712,"sku":"SUC-H7-PRO-48V-S-UK","price":139.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ EU","offer_id":47406734901480,"sku":"SUC-H7-PRO-48V-S-DE","price":139.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ AU","offer_id":47406734934248,"sku":"SUC-H7-PRO-48V-S-AU","price":139.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ Other","offer_id":47406734967016,"sku":"SUC-H7-PRO-48V-S","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_e11af895-8070-40c6-9ee0-6b005ceeaac0.jpg?v=1710377571"},{"product_id":"douk-audio-t6pro-hifi-tpa3255-bluetooth-tube-amplifier-with-vu-meter-300watts-x2","title":"Douk Audio T6PRO HIFI TPA3255 Bluetooth Tube Amplifier with VU Meter 300Watts x2","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eIntroduction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eT6PRO is a compact tube amplifier designed by Douk Audio, combining cool design with exceptional performance. Adopting the comnbination of JAN5725 tubes and TPA3255 amp chip, the power output up to 300W for each channel can effortlessly drive 4-8Ω speakers, delivering impressive sound quality. With Bluetooth, 2 groups of stereo RCA and 3.5mm AUX inputs, 3.5mm AUX preamp output besides speaker jacks output, easily to build multi-channel systems. Besides common treble and bass control, super bass low to 20Hz is added to achieve shocking bass effects. A whole piece of cool dark VU meter is used with dual panels and pointers swinging in real-time with audio signal changes, to get both auditory and visual enjoyment.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDual VU meter but in one visual dashboard: T6PRO designed with dual cool VU meters but in a whole piece of big board, looks more unique and magnificent. The pointer dynamically swings with changes in the audio signal, combining aesthetic appeal with strong functional features but also helping you adjust the audio volume in real-time to prevent overload and distortion.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt; font-family: 'times new roman', times;\"\u003eHybrid design but strong output: T6PRO features JAN5725 tubes working at 100V for the true tube amplification and delivering a warm and rich experience. TPA3255 high-end digital class D amp chip, max power output of per channel can up to 300W and effortlessly drive 4-8Ω speakers. Its compact size makes it suitable for various applications, from bookshelves and desktop setups to home theaters.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt; font-family: 'times new roman', times;\"\u003eVersatile inputs and preamp output: besides Bluetooth 5.1 supports APTX-HD and LDAC, T6PRO with 3.5mm AUX and 2 groups of stereo RCA inputs, multiple devices can be connected and switched at one time and avoid plugging cables repeatedly. Also features its 3.5mm AUX preamp output, another amplifier and active speaker\/subwoofer can be connected to build 2.1 or multi-channel home theater systems.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt; font-family: 'times new roman', times;\"\u003eSuper bass and audiophile-grade components: besides common treble and bass adjustments to custom-tailor your preferred sound, super bass knob low to 20Hz is added to to achieve shocking bass effects. T6PRO adopts QCC5125 Bluetooth chip, Germany WIMA, Japanese ELNA and Rubycon capacitors, professional audio inductors and all-sealed precision potentiometer etc. to deliver exceptional clarity and low distortion.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt; font-family: 'times new roman', times;\"\u003eRefined craftsmanship and attractive appearance: CNC-machined, customized all-aluminum alloy construction, ensuring both longevity and a luxurious feel; much larger speaker binding post to pass through higher power safely. VU meters to show the volume in real-time, harmoniously combine retro charm with contemporary design, let us experience a HIFI musical journey through time via Douk Audio T6PRO.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWarm tips:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1.The 3.5mm AUX output is pre-amplified, its output level and the speaker jacks output are controlled by the main volume synchronously.\u003cbr\u003e2.Default comes with optional 32V\/5A and 48V\/5A power adapter, if you want higher power output please replace another larger power adapter with high-quality by yourself.\u003cbr\u003e3.There are two sensitivity adjustments for VU meters on the side panel of T6PRO, one is responsible for the left channel and the other is for the right.\u003cbr\u003e4. T6PRO default comes with JAN5725 tubes, can be replaced directly by 6J1, 6J2, 6J3, 6J4, 6J5, 6K4, 6*IN, 6*4N, 6*5N, 5654, 6AK5, EF95, 6BA6, 403B etc.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBrand: Douk Audio \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel: T6PRO\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: Bluetooth 5.1\/2 groups of stereo RCA \/ 3.5mm AUX\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: banana speaker jacks \/ 3.5mm AUX\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBluetooth version: QCC5125 (support APTX\/APTX-HD\/LDAC)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSampling rated BT supported: 24bit\/96Khz\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax output power: 300Wx2 (@4Ω)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMatched speaker impedance: 4-8Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTone control range \/ center frequency:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTreble: ±8dB \/ 10KHz\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBass: ±6dB \/ 200Hz\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSuper bass: ±10dB \/ 20Hz\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20Hz-20KHz (±1dB)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput sensitivity: 0.775V\/0dBFS\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax output level of AUX: 3V\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD: 0.01%\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR: ≥102dB\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking voltage: DC 24-48V\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions(W*D*H): 140*165*69mm \/ 5.51*6.50*2.72in\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage dimensions(W*D*H): 250*228*110mm \/ 9.84*8.98* 4.33in\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight: 1.4kg \/  3.09lb\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight (with 32V Power Adapter): 2.1kg \/ 4.63lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight (with 48V Power Adapter): 2.4kg \/ 5.29lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePower Output Table of T6PRO\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003ctable style=\"border-collapse: collapse; width: 51.1937%; height: 190px;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 24.362%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePower Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSpeaker Impedance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRated Output Power\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 24.362%;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e32V\/5A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e78W+78W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e71W+71W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e65W+65W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 24.362%;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e48V\/5A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e120W+120W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e110W+110W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e102W+102W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 24.362%;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e48V\/10A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e250W+250W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e210W+210W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.5934%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 23.4775%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e185W+185W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×T6PRO Amplifier\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2×JAN5725 Tube\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×DC 32V Power Adapter (Optional)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×DC 48V Power Adapte(Optional)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×Bluetooth Antenna\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"Black \/ Without Power Adapter \/ US","offer_id":47198674256104,"sku":"SUC-T6-PRO-H-DJ-US","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ Without Power Adapter \/ UK","offer_id":47406656487656,"sku":"SUC-T6-PRO-H-DJ-UK","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ Without Power Adapter \/ EU","offer_id":47406656520424,"sku":"SUC-T6-PRO-H-DJ-DE","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ Without Power Adapter \/ AU","offer_id":47406656553192,"sku":"SUC-T6-PRO-H-DJ-AU","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ Without Power Adapter \/ Other","offer_id":47406656585960,"sku":"SUC-T6-PRO-H-DJ","price":149.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ With 32V\/5A Power Adapter \/ US","offer_id":46051437641960,"sku":"SUC-T6-PRO-H-32V-US","price":159.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ With 32V\/5A Power Adapter \/ UK","offer_id":47406656618728,"sku":"SUC-T6-PRO-H-32V-UK","price":159.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ With 32V\/5A Power Adapter \/ EU","offer_id":47406656651496,"sku":"SUC-T6-PRO-H-32V-DE","price":159.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ With 32V\/5A Power Adapter \/ AU","offer_id":47406656684264,"sku":"SUC-T6-PRO-H-32V-AU","price":159.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ With 32V\/5A Power Adapter \/ Other","offer_id":47406656717032,"sku":"SUC-T6-PRO-H-32V","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ With 48V\/5A Power Adapter \/ US","offer_id":46051437674728,"sku":"SUC-T6-PRO-H-48V-US","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ With 48V\/5A Power Adapter \/ UK","offer_id":47406656749800,"sku":"SUC-T6-PRO-H-48V-UK","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ With 48V\/5A Power Adapter \/ EU","offer_id":47406656782568,"sku":"SUC-T6-PRO-H-48V-DE","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ With 48V\/5A Power Adapter \/ AU","offer_id":47406656815336,"sku":"SUC-T6-PRO-H-48V-AU","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ With 48V\/5A Power Adapter \/ Other","offer_id":47406656848104,"sku":"SUC-T6-PRO-H-48V","price":179.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ Without Power Adapter \/ US","offer_id":47630782464232,"sku":"SUC-T6-PRO-Y-DJ-US","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ Without Power Adapter \/ UK","offer_id":47630782497000,"sku":"SUC-T6-PRO-Y-DJ-UK","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ Without Power Adapter \/ EU","offer_id":47630782529768,"sku":"SUC-T6-PRO-Y-DJ-DE","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ Without Power Adapter \/ AU","offer_id":47630782562536,"sku":"SUC-T6-PRO-Y-DJ-AU","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ Without Power Adapter \/ Other","offer_id":47630782595304,"sku":"SUC-T6-PRO-Y-DJ","price":149.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ With 32V\/5A Power Adapter \/ US","offer_id":47630782628072,"sku":"SUC-T6-PRO-Y-32V-US","price":159.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ With 32V\/5A Power Adapter \/ UK","offer_id":47630782660840,"sku":"SUC-T6-PRO-Y-32V-UK","price":159.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ With 32V\/5A Power Adapter \/ EU","offer_id":47630782693608,"sku":"SUC-T6-PRO-Y-32V-DE","price":159.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ With 32V\/5A Power Adapter \/ AU","offer_id":47630782726376,"sku":"SUC-T6-PRO-Y-32V-AU","price":159.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ With 32V\/5A Power Adapter \/ Other","offer_id":47630782759144,"sku":"SUC-T6-PRO-Y-32V","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ With 48V\/5A Power Adapter \/ US","offer_id":47630782791912,"sku":"SUC-T6-PRO-Y-48V-US","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ With 48V\/5A Power Adapter \/ UK","offer_id":47630782824680,"sku":"SUC-T6-PRO-Y-48V-UK","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ With 48V\/5A Power Adapter \/ EU","offer_id":47630782857448,"sku":"SUC-T6-PRO-Y-48V-DE","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ With 48V\/5A Power Adapter \/ AU","offer_id":47630782890216,"sku":"SUC-T6-PRO-Y-48V-AU","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ With 48V\/5A Power Adapter \/ Other","offer_id":47630782922984,"sku":"SUC-T6-PRO-Y-48V","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/2_50de7eae-3cbe-4cb3-8241-a1c686cc6c8d.jpg?v=1745486199"},{"product_id":"douk-audio-bsa-600-230w-bridge-stereo-mono-bass-shaker-amplifier-subwoofer-power-amp-for-transducer","title":"Douk Audio BSA-600 230W Bridge Stereo\/Mono Bass Shaker Amplifier Subwoofer Power Amp for Transducer","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWhy BSA-600 Bass Shaker Amplifier is Needed?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eThe human ear has the ability to hear a wide range of sounds, however, some sound is simply too low to hear and must be felt through the body. Feeling this extremely low frequency sound will add a new dimension to your listening, gaming and movie experiences, so bass shakers and matched amplifiers are emerged. Douk Audio BSA-600 amplifier and BS-1 bass shakers can provide extremely immersive experience in gaming or movie, you will be able to feel everything from high impact explosions in movies to the subtle feel of road surfaces in racing simulators from the feelings of auditory, vision and body. \u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMore details of the BS-1 bass shaker please click: \u003ca href=\"https:\/\/diou9jna9usanqx6-64069959912.shopifypreview.com\/products_preview?preview_key=79ebfff8f0d52f62805247133270b9aa\"\u003eLINK\u003c\/a\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSpecially designed to enhance sensory experience: BSA-600 is designed for bass shakers, and also works perfectly with subwoofers. It provides a powerful yet controlled signal, transforming your home theater or gaming setup into an immersive and tactile adventure, from explosions in movies to road rumble in gaming chairs, bringing an added \"texture\" with a low end that can really be felt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eStrong output power to enhance the audio system: BSA-600 adopts TPA3255 chip and supports stereo\/mono bridged output with 230W RMS at 2 ohms and 115W RMS at 4 ohms. It can drive up to 4 bass shakers in mono mode or up to 8 in stereo mode, also ideal for powering subwoofers and low-frequency transducers, delivering immersive home theater effects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eEasy remote control and auto standby: BSA-600 with a wired remote control for volume adjustment\/mute and amp power on\/off. It is perfect in applications in which the amp is installed in hard to reach places, 5m\/16.4ft cable makes it easy to control even if it is out of view. Support manual, auto, or triggered on\/off modes for integration into any automated system.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFlexible function and versatile installation: BSA-600 with 50-200Hz cutoff frequency and balance adjustment knobs, let you freely adjust the desired crossover point and output to find the perfect balance of low-end in your audio system. Included brackets, give you the ability to utilize custom mounting options such as under a couch, gaming chair, equipment rack etc. to save more space.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMulti-zone use and user-friendly design: besides speaker outputs, BSA-600 also features line outputs so that you can daisy chain multiple units together for larger installations to achieve multi-room theater building. BSA-600 also offers an external USB 5V output to provide power for other devices to help clean up the need for messy cables.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWarm tips:\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1. If the power indicator is flashing after press the power switch on the back panel, please short press the VOL knob to turn it on and the power indicator will be steady on and the display screen will also show the volume value, that means the BSA-600 has been turned on.\u003cbr\u003e2. The RCA input can be full-frequency signal or low frequency signal, the kind of RCA output signal depends on what the RCA input.\u003cbr\u003e3. The banana speaker jacks only output low frequency and drive subwoofers or bass shakers, cannot power full-frequency speakers.\u003cbr\u003e4. The RCA input and RCA output is in parallel, the RCA output without any amplification.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBrand: Douk Audio\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel: BSA-600\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: stereo RCA\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: banana speaker jacks \/ stereo RCA\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax. output power:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eStereo: 115W*2 (4Ω）\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMono: 230W*1 (2Ω)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMatched speaker impedance: 2-8Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRange of cutoff frequency: 50-200Hz\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput sensitivity: 0.22mV@50Hz\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eThe time of entering standby if no signal input: after 10 minutes\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eThe lowest drive level to power on: ≥15mV at 1KHz\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eGain: 40db\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDistortion: 0.1%\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eS\/N Ratio: ≥105dB\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOutput voltage of USB: DC5V\/1A\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOverheat protection: \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDisplay OL -- Overheat is relieved and it will recover after 10 seconds\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOvercurrent protection: \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDisplay OC -- Overcurrent is relieved and it will recover after 10 seconds\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking voltage: AC 100-240V\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eExternal wired remote: supported (5m \/ 16.4 ft)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eStandby power consumption: 0.5W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight (BSA-600): 2.34kg \/ 5.16lb\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight (BSA-600) : 3.0kg\/6.61lb\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions(BSA-600-W*D*H): 242*214*65mm \/ 9.53*8.43*2.56in\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage dimensions(BSA-600-W*D*H): 345*265*90mm \/ 13.58*10.43*3.54in\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×BSA-600 Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×Power Cord\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×Volume Remote\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2×Double-sided Adhesive\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1 Set×Brackets \u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47406840217832,"sku":"SUC-BSA-600-US","price":279.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406840250600,"sku":"SUC-BSA-600-UK","price":279.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406840283368,"sku":"SUC-BSA-600-DE","price":279.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406840316136,"sku":"SUC-BSA-600-AU","price":279.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406840348904,"sku":"SUC-BSA-600","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_af91f8f1-7a9c-4784-b13c-9728cf4a0fac.jpg?v=1717728897"},{"product_id":"douk-audio-a100-tpa3255-digital-power-amplifier-mono-stereo-bass-audio-amp-300w","title":"Douk Audio A100 TPA3255 Digital Power Amplifier Mono\/Stereo Bass Audio Amp 300W","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eIntroduction\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eThe A100 is a mighty home audio amplifier designed by Douk Audio, with mono\/stereo and bass\/full-frequency switch. Adopting TI's TPA3255 power chip, max output can reach 300W to effortlessly drive all home passive speakers and subwoofers. Besides PFFB technology, A100 is equipped with exclusive patented heat dissipation technology which makes TPA3255 reach its maximum potential, letting you immerse yourself in the high-fidelity audio world.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eExclusive Patented for Heat Dissipation: The A100 breaks the traditional heat dissipation techniques, discards the conventional design of built-in heat sinks and body-edge ventilation holes, ingeniously integrating the heat sink seamlessly with the body of A100 itself. While maintaining the A100’s stylish and eye-catching looking, significantly expands the heat sink groove area and achieves more direct and efficient airflow contact to make great improvement in heat dissipation efficiency and ensures the A100’s stability and performance during continuous work.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInnovative and Versatile Four Working Modes: A100 with mono\/stereo and bass\/full-frequency switch, that means it supports four combinations of working modes to adapt flexibly to your diverse usage scenarios and allow seamless mode switching. Bridged mono mode provides more power for your system, pairing two A100s to create a powerful audio system, significantly enhancing your listening experience.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTI TPA3255 and PFFB design: Features the TPA3255 class D amp chip, default comes with DC 48V\/5A power adapter, the max output power of each channel reaches 120W in stereo mode and 315W in mono mode. Adopts post-filter feedback technology (PFFB), significantly reduces distortion, enhances linearity and frequency response, and improves sound purity and system efficiency, it also utilizes four-layer premium immersion gold PCB, Japanese Rubycon, ELNA, German WIMA capacitors and high-precision potentiometer etc. for exceptional audio quality. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRicher Connectivity and Adjustment: Besides mono\/stereo speaker output, A100 also supports 3.5mm AUX output with amplification and independent volume control, another amplifier, active speaker or subwoofer can be connected to build 2.1 or multi-channel home theater systems. A100 also features Super Bass and SW-FREQ knobs to freely adjust the bass gain and cutoff frequency to achieve more shocking bass effects.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSwappable Op-amps and More Details: default 2PCS pluggable NE5532, easily to be replaced by 8-pin dual op-amps like MUSES02, OPA2604, OPA2134PA, OP249, AD827, LME49720HA, etc. to tailor your own sound styles. All-Aluminum alloy chassis, compact yet powerful; bigger pure copper banana speaker terminals to transmit larger current safely; its unique shape makes it easy to be placed horizontally or vertically to adapt to different spaces. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWarm tips:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1. The kind of AUX output signal (bass or full-frequency) is determined by the input signal, and the AUX output with amplification.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2. The super bass and SW-FREQ knobs are only valid in the SUB mode, invalid if you select FLAT mode.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e3. Before use, please make sure that you have selected correct working modes, mono or stereo, sub or flat, or else the A100 won’t work normally.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBrand: Douk Audio\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel: A100\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: stereo L\/R RCA\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: banana speaker jacks (mono \/ stereo) \/ 3.5mm AUX\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking modes: \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"padding-left: 40px; text-align: left;\"\u003e\n\u003ctable style=\"border-collapse: collapse; width: 51.7521%; height: 121px;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 27.4346%;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModes and Connections\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 27.3008%;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSUB\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 42.251%;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFLAT\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 27.4346%;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMono\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 27.3008%;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOne subwoofer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 42.251%;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOne full-frequency speaker\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 27.4346%;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eStereo\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 27.3008%;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTwo subwoofers\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 42.251%;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOne pair of full-frequency speakers\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRMS output power in stereo mode: 300W*2（4Ω）\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRMS output power in mono mode: 600W*1（2Ω）\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMatched speaker impendace: 2-8Ω (Mono) \/ 4-8Ω (Stereo)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRMS output level of AUX: 2.8V\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBass gain adjustment range: ±6dB\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBass cutoff frequency range: 50-220Hz\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput sensitivity: 2V\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20Hz-20kHz (0.5dB）\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD: 0.002%\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR: ≥115dB\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions (W*D*H): 149*142*60mm \/ 5.87*5.59*2.36in\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage dimensions (W*D*H): 295*225*85mm \/ 11.61*8.86*3.35in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight: 1136g \/ 2.50lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: times new roman, times;\"\u003e\u003cspan style=\"font-size: 18.6667px;\"\u003ePackage weight: 2500g \/ 5.51lb\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003cspan style=\"color: #000000; font-weight: 300; text-align: left; white-space: normal; background-color: #ffffff; float: none; display: inline;\"\u003ePower Output Table of  The A100\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003ctable style=\"border-collapse: collapse; width: 52.0309%; height: 324px;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 9.99215%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePower Adapter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSpeaker Impedance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eStereo Output Power\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMono Output Power\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 9.99215%; text-align: center;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDC 24V\/5A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e68W+68W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e90W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e61W+61W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e60W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e55W+55W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e54W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"height: 56px; width: 9.99215%; text-align: center;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDC 32V\/5A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 22.1901%; height: 18px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 18px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e78W+78W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 18px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e150W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e71W+71W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e120W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e65W+65W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e107W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 9.99215%; text-align: center;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDC 36V\/6A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e107W+107W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e190W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e100W+100W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e150W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e94W+94W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e118W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 9.99215%; text-align: center;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDC 48V\/5A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e120W+120W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e315W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e110W+110W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e220W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 22.1901%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e102W+102W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 19px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e190W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26px;\"\u003e\n\u003ctd style=\"height: 78px; width: 9.99215%; text-align: center;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDC 48V\/10A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 22.1901%; height: 26px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 26px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e250W+250W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 26px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e315W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26px;\"\u003e\n\u003ctd style=\"width: 22.1901%; height: 26px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 26px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e210W+210W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 26px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e240W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26px;\"\u003e\n\u003ctd style=\"width: 22.1901%; height: 26px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.381%; height: 26px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e185W+185W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.5063%; height: 26px; text-align: center;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e190W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e*Please note that the 300W+300W output in stereo mode is tested under DC 51V.\u003c\/span\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×A100 Amplifier\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×DC 48V\/5A Power Adapter\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1×User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"Douk Audio","offers":[{"title":"Without Power Adapter \/ US","offer_id":47198644699368,"sku":"SUC-A100-DJ-US","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47406454178024,"sku":"SUC-A100-DJ-UK","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47406454210792,"sku":"SUC-A100-DJ-DE","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47406454243560,"sku":"SUC-A100-DJ-AU","price":139.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47406454276328,"sku":"SUC-A100-DJ","price":139.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ US","offer_id":47198644732136,"sku":"SUC-A100-48V-B-US","price":189.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ UK","offer_id":47406454309096,"sku":"SUC-A100-48V-B-UK","price":189.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ EU","offer_id":47406454341864,"sku":"SUC-A100-48V-B-DE","price":189.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ AU","offer_id":47406454374632,"sku":"SUC-A100-48V-B-AU","price":189.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ Other","offer_id":47406454407400,"sku":"SUC-A100-48V-B","price":189.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/SUC-A100_1.jpg?v=1721113134"},{"product_id":"douk-audio-m1fm-hifi-tpa3116-digital-amplifier-bluetooth-5-1-stereo-receiver-home-fm-amp-50w-2","title":"Douk Audio M1FM HiFi TPA3116 Digital Amplifier Bluetooth 5.1 Stereo Receiver Home FM Amp 50W*2","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMultiple inputs and higher compatibility: with Bluetooth 5.1\/RCA\/AUX\/FM audio inputs, compatible with most audio devices such as phones, computers, tablets, TVs, TV, CD players etc. besides speaker output, add 3.5mm AUX output to connect another amplifier or active speaker\/subwoofer to build multiple-channel system. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHigh-end materials are adopted to ensure better performance:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTPA3116D2 amplifier chip with excellent performance, each channel of max output can reach 50W(4Ω), easily driving all 3-8Ω passive speakers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eQCC304X Bluetooth chip, supporting SBC\/AAC\/APTX\/APTX-HD, 24bit\/48Khz lossless transmission can be achieved to reproduce high-quality music.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4PCS NE5532 op-amps, pluggable socket design makes it easier to change different op-amps, adding much fun and higher playability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHigh sensitivity reception: Designed with an automatic and manual search function, can quickly and accurately search for radio stations; With low power consumption, good anti-interference ability, with a reception frequency of 76-108Mhz, can effectively capture weak radio signals.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePractical functions to simplify use: with full-function remote control, all settings can be achieved from a distance; with a display screen, clearly shows the working status in real time; with Bluetooth reset function, supporting one click to clear all devices paired, easy to restart and connect the new devices to the Bluetooth input.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWarm Tips\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1. For safer and faster delivery, the remote control does not include batteries(2*AAA), please prepare it yourself.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2. Default comes with 24V\/4A power supply, enough to drive M1FM, if you want higher performance, please prepare the power supply yourself.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: Bluetooth 5.1\/FM\/RCA\/AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: AUX\/Banana speaker jacks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAmp IC: TPA3116D2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBluetooth chip: QCC303X (support AAC\/SBC\/APTX\/APTX-HD, 48kHz\/24bit)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOp-amp: 4PCS NE5532\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFM frequency: 76-108Mhz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20Hz-20kHz(±1dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRated output power: 50W*2@4Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput sensitivity: 0.775V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAUX Rated output level:1.3V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD+N: 0.03%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR:≥102dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking voltage: DC 15-24V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight: 513g \/ 1.13lb\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight:1.20kg \/ 2.65lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions(W*D*H): 132*124*36mm \/ 5.20*4.88*1.42in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage dimensions(W*D*H): 285*225*65mm \/ 11.22*8.86*2.56in\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*M1 FM Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*24V\/4A Power Supply\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*Bluetooth Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*FM Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*Remote Control(without battery)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406787363048,"sku":"SUC-M1-FM-US","price":99.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406787395816,"sku":"SUC-M1-FM-UK","price":99.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406787428584,"sku":"SUC-M1-FM-DE","price":99.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406787461352,"sku":"SUC-M1-FM-AU","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406787494120,"sku":"SUC-M1-FM","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_e254226f-40d4-4eaa-a89f-34f5f509f5f4.jpg?v=1721379493"},{"product_id":"douk-audio-u3-pro-hifi-mini-headphone-amplifier-class-a-desktop-amp-for-headsets-dc5v","title":"Douk Audio U3 PRO HiFi Mini Headphone Amplifier Class A Desktop Amp for Headsets DC5V","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eEnhanced Compatibility: with 3.5mm AUX\/stereo RCA input and 3.5mm\/6.35mm headphone jack output, the U3 PRO is compatible with a wide range of audio sources, including MP3 players, iPods, smartphones, tablets, computers, and CD players etc. Its output can connect to various headphones, offering a versatile listening experience with support for most headphone models.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBuilt-in Voltage Boost Circuit: adopting innovative circuit design with built-in voltage boost circuit, the amplifier circuit can always work at a high voltage of ±14V even only powered by DC 5V, and the background noise index is excellent. With wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eExceptional Output Power: for a total power output of up to 1500mW under a 32Ω load, U3 PRO can easily power headphones with any low or high impedance (18-600Ω). Working in class A status, with ultra-low distortion, the sound is warm and delicate, full and mellow with outstanding sound quality. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eClassic OP+BUF Architecture: U3 PRO adopts OP42 and BUF634, featuring a pure DC amplification circuit. Pluggable op amp socket design, OP42 can be replaced by OP17, AD797, AD843, AD847, and OPA627, convenient to upgrade different op amps and bring much DIY fun and playability for audiophiles. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHighly Cost-Effective: mini size with exquisite appearance, brings big surprise for all audiophiles, easily to drive most headphones in the market, providing larger power, better sound field and details, very suitable for home\/office desktop audio system use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv style=\"line-height: 1.5;\"\u003eWarm tips:\u003cbr\u003e1. Without DC 5V power adapter, please prepare an original high-quality power adapter yourself (DC 5V ≥1A). Note: the input voltage over 5V will result in damage.\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.5;\"\u003e2. The U3 PRO won't work well if the current of power adapter is below 1A.\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.4;\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003e3. The 3.5mm and 6.35mm headphone jack can output at the same time. Please don't use RCA and AUX input at the same time, otherwise audio mixing will be caused.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters:\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: stereo L\/R RCA, 3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: 3.5mm\/6.35mm headphone jack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOutput power: ≥1500mW (32Ω)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMatched headphone impedance: 18-600Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax output amplitude voltage: ±14V\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20-30KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR: ≥110DB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput voltage: DC 5V(≥1A)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimension(W*D*H): 68*92*32mm\/ 2.68*3.62*1.26in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight: 164g \/ 0.36lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight: 300g \/ 0.66lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003ePacking List\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"line-height: 1.5; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*U3 PRO Headphone Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406971617512,"sku":"XZ-U3-PRO-US","price":54.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406971650280,"sku":"XZ-U3-PRO-UK","price":54.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406971683048,"sku":"XZ-U3-PRO-DE","price":54.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406971715816,"sku":"XZ-U3-PRO-AU","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406971748584,"sku":"XZ-U3-PRO","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_2a4af575-efe7-4f44-b4ca-18910257f18e.jpg?v=1722241027"},{"product_id":"douk-audio-u5pro-hifi-fully-balanced-headphone-amplifier-mini-stereo-amp-for-xlr-4-4mm-headsets","title":"Douk Audio U5PRO HiFi Fully Balanced Headphone Amplifier Mini Stereo Amp for XLR\/4.4mm Headsets","description":"\u003cdiv\u003e\n\u003cdiv style=\"line-height: 1.5; text-align: left;\"\u003eWarm tips:\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.5; text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e1. There is a possibility that the U5Pro won't work normally if the single-ended or false balanced signal (use 3.5mm to XLR cable or switcher)  inputs directly.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e2. Please add the Douk Audio U1 single-ended to balanced adapter between the audio source and the U5pro if the audio source signal is single-ended.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e3. Please make sure the headphones connected is balanced whose interface definition is L+\/L- R+\/R-\/(GND).\u003cbr\u003e4. Without DC 5V power adapter. Recommend using a USB phone charger of DC 5V(≥1A). Input over 5V will result in damage and U5 PRO won't work normally if the current is below 1A.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e【Fully balanced headphone amplifier】Adopting fully balanced amplifier circuit and innovative circuit design with built-in voltage booster circuit, the amplifier circuit of U5 PRO always works at a high voltage of ±14V even if input DC 5V, with wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e【Easily to drive low or high impedance headphones】For a total power output of up to 1500mW under a 32Ω load, U5 PRO can easily power headphones with any low or high impedance (18-600Ω). Volume knob allows you to smoothly adjust volume without any undesirable noise nor any channel imbalances.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e【Classic OP+BUF architecture】U5 PRO adopts OP42 and BUF634, classic OP+BUF architecture, and pure DC amplification circuit, ensuring every note is rendered with outstanding clarity and purity. Designed with four independent paths, it delivers exceptional sound quality, making it an ideal choice for audiophiles.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e【Pure analog design and pluggable op amp】Pure analog amplification circuit and analog control, show you the truest sound, all aspects are in the top-class such as sound field, sound position, details etc. Pluggable op amp socket design, OP42 can be replaced by OP17, AD797, AD843, AD847, and OPA627, convenient to upgrade different op amps to enjoy other sound styles.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e【Most cost-effective amp on the market】Mini size and exquisite appearance, and with low distortion, high power and a pure, uncolored sound, you'll experience subtle details and shocking swings in your music effortlessly. U5 PRO, the best helper for all XLR\/4.4mm headphones to improve their sound quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"line-height: 1.5; text-align: left;\"\u003e\n\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: stereo L\/R XLR (3-core, female)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: XLR (4-core, female)\/4.4mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOutput power: ≥1500mW(32Ω)\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMatched headphone impedance: 18-600Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax output amplitude voltage: ±14V \u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20-30KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR: ≥110DB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD: 0.005%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput voltage: DC 5V (≥1A)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimension(W*D*H): 70*82*38mm\/2.76*3.23*1.50in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight:172g\/0.38lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight: 300g\/0.66lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*U5 PRO Headphone Amplifier\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406762361064,"sku":"XZ-U5-PRO-US","price":79.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406762393832,"sku":"XZ-U5-PRO-UK","price":79.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406762426600,"sku":"XZ-U5-PRO-DE","price":79.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406762459368,"sku":"XZ-U5-PRO-AU","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406762492136,"sku":"XZ-U5-PRO","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/10_c0d4a06b-a56e-4ae5-a634-7eb006436981.jpg?v=1722241452"},{"product_id":"douk-audio-st-01-plus-hifi-bluetooth-tpa3255-digital-amplifier-vu-meter-turntable-audio-stereo-amp","title":"Douk Audio ST-01 PLUS HiFi Bluetooth TPA3255 Digital Amplifier VU Meter Turntable Audio Stereo Amp","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMultiple inputs and higher compatibility: with Bluetooth 5.2\/RCA\/MM phono inputs, compatible with most audio devices such as turntables, phones, computers, tablets, TVs, CD players etc. Besides banana speaker outputs, a 3.5mm AUX output is added to connect another amplifier or active speaker\/subwoofer to build 2.1 or multi-channel audio system.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHigh-quality audio components: with TPA3255 amplifier chip adopted, max output power of each channel reaches 300W, can drive most home passive speakers and delivers exceptional sound quality with low distortion. The QCC304X Bluetooth chip, supporting SBC\/APTX\/APTX-LL\/APTX-HD etc, ensures high-quality, low-latency wireless audio streaming with efficient power use and stable connectivity.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eUnique and amazing combination: integrated ST-01 PLUS amplifier with VU meter into whole in such a mini size, brings a retro sense to balance the modern feel. The pointer dancing in the warm light, dynamically decorates the audio system and can serve as a visual aid for real-time audio adjustment.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eUser-friendly design: enjoy tailored sound with adjustable bass and treble. ST-01 PLUS also supports to clear Bluetooth pairing records. The sensitivity of VU meter can be adjusted, ensuring better match with different input signals. With input selection and indicators, clearly shows the working status in real time.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAttractive appearance: crafted with a sleek aluminum alloy shell, ST-01 PLUS exudes elegance and robustness. Its refined exterior not only enhances the visual appeal but also ensures lasting quality, reflecting the perfect union of form and function in high-fidelity audio design.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWarm tips\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1. Default 32V\/5A power supply, can satisfy the needs of most home speakers. If you need higher power output, please prepare a high-quality and large power supply by yourself.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2. The 3.5mm AUX output and the speaker jacks output are controlled by the main volume and bass\/treble synchronously.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio inputs: Bluetooth 5.2\/Stereo RCA\/MM phono\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio outputs: banana speaker jacks\/3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax output power: 300W*2 (4Ω)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput sensitivity: Phono: 5mV   RCA: 2V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBass\u0026amp;treble adjustment range: ±6dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD+N: 0.02%@1KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR: ≥107dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20Hz-20KHz (±1dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAUX rated output level: 2V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking voltage: DC 24-48V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions(W*D*H): 115*100*60mm\/4.53*3.94*2.36in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage dimensions(W*D*H): 295*205*90mm\/11.61*8.07*3.54in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight: 673g\/1.48lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight: 1.40kg\/3.09lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePower Output Table of ST-01 PLUS\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable style=\"border-collapse: collapse; width: 51.7721%; height: 304px; margin-left: 0px; margin-right: auto;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 18.6667px;\"\u003ePower Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 18.6667px;\"\u003eSpeaker Impedence\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 18.6667px;\"\u003eRated Output Power\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 32.3503%;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 18.6667px;\"\u003e32V\/5A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e78W+78W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e71W+71W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e65W+65W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 57px; width: 32.3503%;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 18.6667px;\"\u003e36V\/6A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e107W+107W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e100W+100W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e94W+94W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 57px;\" rowspan=\"3\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 18.6667px;\"\u003e48V\/5A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e120W+120W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e110W+110W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e102W+102W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 57px;\" rowspan=\"3\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 18.6667px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 18.6667px;\"\u003e48V\/10A\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 18.6667px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e250W+250W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e6Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e210W+210W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 32.3503%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8Ω \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.3527%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e185W+185W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking list\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1* ST-01 PLUS Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1* DC 32V\/5A Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1* Bluetooth Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"Without Power Adapter \/ US","offer_id":47198665572584,"sku":"SUC-ST-01-PLUS-DJ-US","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47411116998888,"sku":"SUC-ST-01-PLUS-DJ-UK","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47411117031656,"sku":"SUC-ST-01-PLUS-DJ-DE","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47411117064424,"sku":"SUC-ST-01-PLUS-DJ-AU","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47411117097192,"sku":"SUC-ST-01-PLUS-DJ","price":109.99,"currency_code":"USD","in_stock":true},{"title":"With 32V5A Power Adapter \/ US","offer_id":47198665605352,"sku":"SUC-ST-01-PLUS-32V-US","price":119.99,"currency_code":"USD","in_stock":true},{"title":"With 32V5A Power Adapter \/ UK","offer_id":47411117129960,"sku":"SUC-ST-01-PLUS-32V-UK","price":119.99,"currency_code":"USD","in_stock":true},{"title":"With 32V5A Power Adapter \/ EU","offer_id":47411117162728,"sku":"SUC-ST-01-PLUS-32V-DE","price":119.99,"currency_code":"USD","in_stock":true},{"title":"With 32V5A Power Adapter \/ AU","offer_id":47411117195496,"sku":"SUC-ST-01-PLUS-32V-AU","price":119.99,"currency_code":"USD","in_stock":true},{"title":"With 32V5A Power Adapter \/ Other","offer_id":47411117228264,"sku":"SUC-ST-01-PLUS-32V","price":129.99,"currency_code":"USD","in_stock":true},{"title":"With 48V5A Power Adapter \/ US","offer_id":47198665638120,"sku":"SUC-ST-01-PLUS-48V-US","price":129.99,"currency_code":"USD","in_stock":true},{"title":"With 48V5A Power Adapter \/ UK","offer_id":47411117261032,"sku":"SUC-ST-01-PLUS-48V-UK","price":129.99,"currency_code":"USD","in_stock":true},{"title":"With 48V5A Power Adapter \/ EU","offer_id":47411117293800,"sku":"SUC-ST-01-PLUS-48V-DE","price":129.99,"currency_code":"USD","in_stock":true},{"title":"With 48V5A Power Adapter \/ AU","offer_id":47411117326568,"sku":"SUC-ST-01-PLUS-48V-AU","price":129.99,"currency_code":"USD","in_stock":true},{"title":"With 48V5A Power Adapter \/ Other","offer_id":47411117359336,"sku":"SUC-ST-01-PLUS-48V","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_760c2332-9b98-4412-a957-2d435ba09912.jpg?v=1724743911"},{"product_id":"douk-audio-ns-13g-max-hifi-mini-2-channel-stereo-audio-amplifier-class-d-power-amp-with-phono-300w-2","title":"Douk Audio NS-13G MAX HiFi Mini 2-Channel Stereo Audio Amplifier Class D Power Amp with Phono 300W*2","description":"\u003cdiv style=\"text-align: left;\"\u003eNote:\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e1. The 3.5mm AUX output and the speaker jacks output are controlled by the main volume and bass\/treble synchronously.  \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e2. Default comes with 48V\/5A power adapter, if you want higher power output please prepare another larger power adapter with high quality by yourself.  \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eFeatures\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003eStrong compatibility: with MM phono\/stereo RCA input, NS-13G MAX is compatible with most audio devices including turntables, laptops, computers, CD\/DVD players, TV etc. Besides banana speaker outputs, a 3.5mm AUX output is added to connect another amplifier or active speaker\/subwoofer to build 2.1 or multi-channel audio system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-quality audio components: with TPA3255 amplifier chip adopted, max output power can reach 600W(300W*2), comes with 48V\/5A power supply, easy to drive most home passive speakers and delivers exceptional sound quality with high efficiency \u003cspan\u003eand \u003c\/span\u003elow distortion. The inclusion of the NE5532P op amp chip, along with RUBYCON and WIMA capacitors, ensures overall performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eInnovative heat dissipation design: side and bottom vents are strategically placed to deliver superior heat dissipation while simultaneously preventing dust accumulation. This refined design not only maintains excellent operating performance but also significantly extends the device's lifespan.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eFlexible audio customization\u003c\/span\u003e: tone\u0026amp;bypass switch \u003cspan\u003eand pluggable op amp socket are adopted\u003c\/span\u003e, very convenient to use and\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eprovide more playability\u003c\/span\u003e. The tone\/bypass switch enables to fine-tune your audio or directly obtain pure, unprocessed audio when detail and clarity are paramount.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eNE5532P op amp can be replaced by most dual op-amp like OPA2604, OPA2134, MUSE02 etc.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eRobust and stylish appearance \u003c\/span\u003e: customized aluminum case with multiprocess fine treatment and CNC precision cutting; metal DC outlet, no electric sparks flying\u003cspan\u003e.\u003c\/span\u003e \u003cspan\u003eWith stylish closure and compact size, \u003c\/span\u003eNS-13G MAX is perfectly suitable for desktop or a smaller space in home or office, easy to connect to your audio system, especially designed for the audiophiles who pursue HiFi sound. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eParameters\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003eAudio inputs: RCA\/MM phono\u003c\/li\u003e\n\u003cli\u003eAudio outputs: Banana speaker jacks\/3.5mm AUX\u003c\/li\u003e\n\u003cli\u003eAmp chip: TPA3255\u003c\/li\u003e\n\u003cli\u003eMax output power: 300W*2 (4Ω)\u003c\/li\u003e\n\u003cli\u003eOutput impedance: 4Ω-8Ω\u003c\/li\u003e\n\u003cli\u003eBass\u0026amp;Treble adjustment range: ±6dB\u003c\/li\u003e\n\u003cli\u003eInput sensitivity: Phono: 5mV    RCA: 2V\u003c\/li\u003e\n\u003cli\u003eTHD+N: 0.005%@1kHz\u003c\/li\u003e\n\u003cli\u003eSNR: ≥107dB\u003c\/li\u003e\n\u003cli\u003eAUX output level: 2.4V\u003c\/li\u003e\n\u003cli\u003eFrequency response: 20Hz-20KHz (±1dB)\u003c\/li\u003e\n\u003cli\u003eWorking voltage: DC 24-48V\u003c\/li\u003e\n\u003cli\u003eDimensions (W*D*H): 130*102*38mm\/5.12*4.02*1.50in\u003c\/li\u003e\n\u003cli\u003eNet weight: 513g\/1.13lb\u003c\/li\u003e\n\u003cli\u003ePackage weight: 1.3kg\/2.87lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePower Output Table of NS-13G MAX\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eSpeaker Impedence\u003c\/td\u003e\n\u003ctd\u003eRated Output Power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e32V\/5A\u003c\/td\u003e\n\u003ctd\u003e4Ω\u003c\/td\u003e\n\u003ctd\u003e78W+78W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω\u003c\/td\u003e\n\u003ctd\u003e71W+71W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω\u003c\/td\u003e\n\u003ctd\u003e65W+65W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e48V\/5A\u003c\/td\u003e\n\u003ctd\u003e4Ω\u003c\/td\u003e\n\u003ctd\u003e120W+120W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω\u003c\/td\u003e\n\u003ctd\u003e110W+110W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω\u003c\/td\u003e\n\u003ctd\u003e102W+102W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e48V\/10A\u003c\/td\u003e\n\u003ctd\u003e4Ω\u003c\/td\u003e\n\u003ctd\u003e250W+250W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω\u003c\/td\u003e\n\u003ctd\u003e210W+210W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω\u003c\/td\u003e\n\u003ctd\u003e185W+185W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePacking list\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e1* NS-13G MAX Amplifier\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1* DC 48V\/5A Power adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47198659444968,"sku":"SUC-NS-13G-MAX-48V-S-US","price":114.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406582071528,"sku":"SUC-NS-13G-MAX-48V-S-UK","price":114.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406582104296,"sku":"SUC-NS-13G-MAX-48V-S-DE","price":114.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406582137064,"sku":"SUC-NS-13G-MAX-48V-S-AU","price":114.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406582169832,"sku":"SUC-NS-13G-MAX-48V-S","price":114.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/SUC-NS-13G-MAX_4.jpg?v=1736329504"},{"product_id":"douk-audio-k5-usb-dac-headphone-amplifier-opt-digital-to-analog-converter-dsd256","title":"Douk Audio K5 USB DAC Headphone Amplifier OPT Digital to Analog Converter DSD256","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDouk Audio K5 USB DAC \u0026amp; Headphone Amp: Featuring USB and SPDIF optical inputs, as well as optical, RCA and 6.35\/3.5mm jack outputs, the K5 serves as a high-performance headphone amplifier, a USB DAC, a preamp, but also a USB to optical converter to transmit the high-quality audio from the computer to those audio devices only with SPDIF digital input such as CD players, amplifiers and active speakers etc.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHigh-end Chipset and Top-level Parameters: The K5 adopts ESS9038Q2M (DAC), SA9312 (DSP), OPA1678 (LPF) and SGM8262 (amp) op-amps, and supports PCM 32bit\/384kHz high-resolution decoding and DSD256 playback. Its excellent circuit design ensures superior performance with a SNR over 121dB, a low noise floor of only 3μV and an incredibly low THD of 0.0007%, K5 delivers an exceptional listening pleasure with its ultra-pure sound.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eStrong Power and High\/Low Gain Modes: K5 supports dual 6.35\/3.5mm headphone outputs and provides robust power of 560mW\/470mW@32Ω per channel to effortlessly unleash the best performance of your headphones. Specially designed with high and low gain modes, flexibly adapt to all headphones of a wide impedance range from 16Ω to 600Ω and tailor your own listening experience.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTone Control with Bypass and Gain Switch: Treble and bass with midpoint positioning for perfect balance, the K5 also features a bypass function to remove all tone controls, allowing you to enjoy the purest sound by toggling the switch to PURE. The USB Type-C input can power the K5 directly with sufficient current, it also has an external power port and includes a 2-in-1 USB cable (Type-C and USB-A) for broader compatibility and optimal performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eUser-Friendly Design for Easy Operation: Besides input, tone and gain one-click switch , the K5 also integrated the volume and power button into one to simplify the use; with colorful LED indicators, clearly show the current working mode and sampling rate; aluminum alloy body and CNC-molded, compact but durable and reliable, very suitable for those who pursue HIFI sound.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWarm Tips:\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1. The K5 USB DAC is not compatible with Win7 system.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2.The USB input (type-C) can transmit audio signals and provide power to the K5. If the current is above 2A, there is no need to use the external DC power interface. If less than 2A, please use the supplied high-quality DC5V\/2A power adapter to ensure the performance of the K5.\u003cbr\u003e3. The volume and tone knobs only control the analog audio outputs (RCA\/6.35 \/ 3.5mm jacks), invalid for the optical output.\u003cbr\u003e4. The optical output is only valid when using the USB input. While the analog outputs of RCA, 6.35 and 3.5mm jacks will work no matter using the USB or Optical input.\u003cbr\u003e5. For DSD playback, no USB driver is required if the computer is running MAC OS, linux or Android systems. While for Windows system, please contact us for the USB driver or download directty from the user manual.\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBrand: Douk Audio\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel: K5\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: USB\/Fiber Optical\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: Optical\/Stereo RCA\/6.35mm  \u0026amp; 3.5mm headphone jack\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eChipsets: ESS9038Q2M+SA9312\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFormat and sampling rate supported:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eUSB: PCM44.1-384K\/16-32bit, DSD64-256\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSPDIF: PCM 44.1-192K\/16-24bit, DSD64 (DOP)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20-40kHz(±0.3dB)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTreble adjustment: 3K-20KHz \/ ±10dB\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBass adjustment: 20-250Hz \/ ±10dB\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePure mode: support (Tone control not valid)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMatched headphone impedance: 16-600Ω \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRCA Output\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOutput level: 2Vrms\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003cbr\u003eTHD+N: \u0026lt;0.0007%\u003cbr\u003eSNR: \u0026gt;120dB\u003cbr\u003eChannel Separation: \u0026lt;-80dB\u003cbr\u003eNoise floor: \u0026lt;3μV (1KHz@300ohm)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHeadphone output \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eGAIN Mode: High (0dB) \/ Low (-6dB)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOutput power in High Gain Mode (THD+N\u0026lt;1%): \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e560mW @32Ω (6.35mm jack output)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e370mW @32Ω (3.5mm jack output)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePeak volltage:\u003cbr\u003e4.25Vrms@32ohm (6.35mm Jack output)\u003cbr\u003e3.45Vrms@32ohm (3.5mm jack output)                    \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD+N: \u0026lt;0.0008% @32Ω   \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR: \u0026gt;121dB @32Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eChannel Separation: \u0026lt;-65dB @32Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNoise floor: \u0026lt;3μV\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking voltage: DC 5V (≥2A)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePower interface: USB (type-c) \/ DC 5.5*2.1mm\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions(W*D*H): 95*92*50mm \/ 3.74*3.62*1.97in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage dimensinos(W'D*H): 225*145*80mm\/ 8.86*5.71*3.15in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight: 228g\/0.50lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight: 500\/1.10lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*K5\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*Power Adapter\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*USB Cable\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*Optical Cable\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47396587634920,"sku":"DZ103-US","price":79.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47396587667688,"sku":"DZ103-UK","price":79.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47396587700456,"sku":"DZ103-DE","price":79.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47396587733224,"sku":"DZ103-AU","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47396587765992,"sku":"DZ103","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/0_28f8bb54-6c83-47d7-ac65-5199570bb879.jpg?v=1734050707"},{"product_id":"douk-audio-m1-max-hifi-tpa3255-power-amplifier-bluetooth-receiver-home-stereo-amp-u-disk-player","title":"Douk Audio M1 MAX HiFi TPA3255 Power Amplifier Bluetooth Receiver Home Stereo Amp U-disk Player","description":"\u003cdiv\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eMultiple inputs and higher compatibility: With Bluetooth 5.1\/RCA\/U-disk inputs, compatible with most audio devices such as phones, computers, tablets, TVs, CD players etc. Besides banana speaker outputs, a 3.5mm AUX output is added to connect another amplifier or active speaker\/subwoofer to build 2.1 or multi-channel audio system.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eAdvanced amplifier\/Bluetooth chip: With TPA3255 amplifier chip adopted, max output power reaches 300W per channel, capable of driving most home passive speakers, while strategically placed side and bottom vents ensure effective heat dissipation and dust prevention. The QCC304X Bluetooth chip, supporting aptX\/aptX HD etc, offers improved signal stability and Bluetooth range with low power consumption.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eUser-friendly designs: Enjoy effortless control with dedicated knobs for bass and treble adjustments, alongside a volume control and input switch. The amplifier also includes a Bluetooth reset button for Bluetooth record clearing, as well as intuitive play\/pause, previous song, and next song buttons. Real-time input indicators keep you informed of the operational status.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eHigh-quality audio components: Crafted with premium components, M1 MAX features a fully enclosed potentiometer from Taiwan for precise volume control, Rubycon filter capacitors for crisp sound reproduction, full copper inductors ensuring robust audio output, and WIMA output coupling capacitors for a natural listening experience, all contributing to exceptional audio fidelity.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eExquisite appearance: M1 MAX adopts sleek aluminum alloy chassis, solid aluminum knobs for precise control, and gold-plated terminals for superior connectivity. Durable, stylish, and high-performance, ideal for audiophiles seeking quality and sophistication.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003eWarm tips\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e1. Default 32V\/5A power supply, can satisfy the needs of most home speakers. If you need higher power output, please prepare a high-quality and large power supply by yourself.\u003c\/div\u003e\n\u003cdiv\u003e2. The 3.5mm AUX output and the speaker jacks output are controlled by the main volume and bass\/treble synchronously.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Douk Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: M1 MAX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: Bluetooth \/ Stereo RCA \/ U-disk\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: Banana speaker jacks \/ 3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBluetooth version: 5.1 (supports SBC\/AAC\/aptX\/aptX HD)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSNR: ≥110dB\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTHD+N: 0.01%@1kHz\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFrequency response: 20Hz-20kHz (±1dB)\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput sensitivity: 1.4V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAUX output level: 1.6V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTreble\/bass adjustment range: ±6dB\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMax sampling rate: \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left; padding-left: 40px;\"\u003e\u003cspan\u003eBluetooth input: 48KHz\/24bit\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left; padding-left: 40px;\"\u003e\u003cspan\u003eU-disk input: 48KHz\/16bit\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eU-disk format: FAT32\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaximum capacity supported on U-disk: 32G\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorking voltage: DC 24-48V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H):155*125*42mm \/ 6.10*4.92*1.65in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions(W*D*H): 300*230*70mm \/ 11.81*9.06*2.76in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 800g \/ 1.76lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage weight: 1.50kg \/ 3.31lb\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePower output table of M1 MAX\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable border=\"1\" style=\"margin-left: 0px; margin-right: auto; width: 76.7749%;\" height=\"328\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.1829%;\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003eSpeaker Impedence\u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003eRated Output Power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\" style=\"width: 25.1829%;\"\u003e32V\/5A\u003c\/td\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e4Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e78W+78W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e6Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e71W+71W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e8Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e65W+65W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\" style=\"width: 25.1829%;\"\u003e36V\/6A\u003c\/td\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e4Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e107W+107W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e6Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e100W+100W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e8Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e94W+94W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\" style=\"width: 25.1829%;\"\u003e48V\/5A\u003c\/td\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e4Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e120W+120W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e6Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e110W+110W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e8Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e102W+102W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\" style=\"width: 25.1829%;\"\u003e\n\u003cbr\u003e48V\/10A\u003cbr\u003e\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e4Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e250W+250W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e6Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e210W+210W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 36.3988%;\"\u003e8Ω \u003c\/td\u003e\n\u003ctd style=\"width: 37.6686%;\"\u003e185W+185W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003ePacking list\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* M1 MAX Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* DC 32V\/5A Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* Bluetooth Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"Without Power Adapter \/ US","offer_id":47198651875560,"sku":"SUC-M1-MAX-DJ-US","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47406921154792,"sku":"SUC-M1-MAX-DJ-UK","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47406921187560,"sku":"SUC-M1-MAX-DJ-DE","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47406921220328,"sku":"SUC-M1-MAX-DJ-AU","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47406921253096,"sku":"SUC-M1-MAX-DJ","price":109.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ US","offer_id":47198651908328,"sku":"SUC-M1-MAX-32V-US","price":129.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ UK","offer_id":47406921285864,"sku":"SUC-M1-MAX-32V-UK","price":129.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ EU","offer_id":47406921318632,"sku":"SUC-M1-MAX-32V-DE","price":129.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ AU","offer_id":47406921351400,"sku":"SUC-M1-MAX-32V-AU","price":129.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ Other","offer_id":47406921384168,"sku":"SUC-M1-MAX-32V","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_89bc80a1-19b8-4e5d-a37c-bbf749689a5c.jpg?v=1727249021"},{"product_id":"douk-audio-m5-1pro-hifi-5-1-channel-bluetooth-amplifier-stereo-coa-opt-converter-usb-player-dsd256","title":"Douk Audio M5.1PRO HiFi 5.1 Channel Bluetooth Amplifier Stereo COA\/OPT Converter USB Player DSD256","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWarm Tips\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1. For safer and faster delivery, the remote control does not include AAA*2 battery, please prepare it yourself.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2. Default comes with \u003cstrong\u003eONE\u003c\/strong\u003e 24V\/8A power adapter, if you want higher output please prepare another one by yourself.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures:\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e5.1 Channel Amplifier with Professional DSP Decoding: M5.1PRO supports 2.0\/2.1\/5.1 channel outputs, allowing you to switch according to your preferences and room layout for a more realistic and immersive listening experience. With an integrated Digital Signal Processing (DSP) chip that applies professional algorithms and dynamic separation technology to ensure rich detail and clear layers in the sound, offering a versatile auditory experience.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMultiple Inputs for Different Purposes: Including Bluetooth 5.1\/Coaxial\/Optical\/U-disk\/Hard disk\/SD Card inputs, making it highly compatible and able to work seamlessly with most home audio devices. U-disk input supports MP3, WAV, APE, FLAC, and other lossless formats, enabling you to enjoy high-quality music anytime.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHigh-quality chip sets achieve superior audio performance:\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"padding-left: 40px; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eQCC5125 Bluetooth chip supports ACC\/SBC\/APTX\/APTX-LL\/APTX-HD\/LDAC, capable of 24bit\/96kHz lossless transmission, reproducing high-quality music.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eES9018 chip supports up to 192 kHz \/ 32-bit audio sampling rates, and DFF\/DSF\/ISO\/WAV\/FLAC\/MP3 formats along with DSD256 high-fidelity decoding, providing clear and powerful sound quality.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTPA3116 chips, the rated power can reach front (60W×2), surround (60W×2), center (60W), and subwoofer (60W), making it easy to drive 3-8\" speakers and 5-10\" subwoofers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eColorful OLED Screen and Dual Power Inputs: With a 2.4-inch OLED display screen, showing connection status, playback mode, song playback, and more at a glance, the color screen adds vibrancy to your desk without being monotonous. 24V\/8A power supply provides powerful power and even specially designed two power supply inputs (main\/vice) to provide stronger power input to easily drive most home speakers and subwoofers with high power.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eUser-friendly Function Design: With detailed function buttons and a separate remote control for convenient use, making switching between modes simpler. With Bluetooth reset function, supporting one click to clear all devices paired, easy to restart and connect the new devices to the Bluetooth input. Adopts a metal shell and comprehensive features, it is suitable as the core device of audiophile audio systems.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBrand: Nobsound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel: M5.1PRO\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: Bluetooth 5.1 \/ Coaxial \/ Optical \/ USB(U-disk\/Hard disk) \/ SD-Card\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: Banana Speaker Jacks  \/ Stereo RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRated output power@4ohm:\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"padding-left: 40px; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFront channel: 60W+60W\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSurrounded channel: 60W+60W\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eCenter channel: 60W\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBass channel: 60W\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR:≥98.5dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD: 0.04%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRated output level of RCA:2V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax sampling rate of Optical\/Coaxial: PCM192kHz\/32Bit\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eU-disk\/Hard-disk format: FAT32, exFAT\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax capacity:\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"padding-left: 40px; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e Hard disk: 2TB\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 40px; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eU-disk\/SD-Card: 512G\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSupported music file formats and max sampling rate:\u003c\/span\u003e\n\u003ctable style=\"border-collapse: collapse; width: 29.1117%; height: 76px;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 16.2033%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWAV\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 29.5432%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e384KHz\/32Bit\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20.8658%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMP3\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.3369%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e 48KHz\/16Bit \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 16.2033%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFLAC\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 29.5432%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e192KHz\/24Bit \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20.8658%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eISO\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.3369%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSD256\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 16.2033%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAPE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 29.5432%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e48KHz\/16Bit \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20.8658%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSF\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.3369%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSD256\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 16.2033%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDFF\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 29.5432%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSD256\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20.8658%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDTS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30.3369%; height: 19px;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSupport\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFormat of CUE support: MP3\/WAV\/APE\/FLAC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eUSB port: USB3.0 or below\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSD port: CLASS10 or above\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions(W*D*H): 228*154*46mm \/ 8.98*6.06*1.81in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage dimensions(W*D*H): 410*205*85mm \/ 16.14*8.07*3.27in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight: 1.23kg \/ 2.71lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight: 2.10kg \/ 4.63lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*M5.1PRO Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*24V\/8A Power Supply\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*Optical Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*Bluetooth Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*Remote Control(without battery)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406908702952,"sku":"SUC-M5.1-PRO-US","price":229.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406908735720,"sku":"SUC-M5.1-PRO-UK","price":229.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406908768488,"sku":"SUC-M5.1-PRO-DE","price":229.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406908801256,"sku":"SUC-M5.1-PRO-AU","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406908834024,"sku":"SUC-M5.1-PRO","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/SUC-M5.1PRO_19.jpg?v=1727592999"},{"product_id":"douk-audio-l1mini-mini-stereo-line-level-booster-amplifier-audio-preamp-20db-gain-volume-control","title":"Douk Audio L1MINI Mini Stereo Line Level Booster Amplifier Audio Preamp 20dB Gain + Volume Control","description":"\u003cdiv id=\"pastingspan1\"\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eIntroduction\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\n\u003cbr\u003eDouk Audio L1 MINI is an upgraded version of L1, featuring a more compact size and simplified interfaces. It is a stereo amplifier with built-in voltage boost and amplification circuits, designed to boost the output of virtually any line level audio source (such as TV, video games, MP3 players, ipod, phone, tablet etc.) to max 20dB. L1 MINI features its wide gain range, wide frequency response, excellent S\/R and HiFi sound, to bump the output level of the audio devices which are with an inherently low level output so as to match other sources, or to allow the use of a longer cable run than normal between components.\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv\u003eFeatures\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eStandard input\/output interfaces: with 3.5mm AUX\/stereo RCA inputs and stereo RCA outputs, can be compatible with most low-volume audio sources such as ipod, ipad, phone, TV, MP3 player,  potable CD player, computer, video game etc., and boost their output to the level needed to drive amplifier or speakers.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAdjustable gain and voltage boost circuit: with built-in amplification and voltage boost circuit, adjustable gain to match better with different audio sources, while L1 MINI can always work at a high voltage of 26V to provide ±12.5V high output amplitude and max 20dB high gain.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eUnique design and HiFi clear sound: double-side PCB design, NE5532P op amp with pluggable socket design, convenient to upgrade other dual op amps to bring more playability. The high-quality sealed potentiometer ensures a wide frequency range and excellent dynamic response, delivering smooth, warm, and natural sound with ultra-low distortion.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eVersatile application scenarios: perfect for boosting the volume of portable audio devices to match home stereo systems, enhancing karaoke or CD\/DVD players for lively parties, and providing external volume control for audio sources lacking adjustments, ideal for mixer or speaker setup, audio recording, party, live stage event etc. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSuper mini size with durability: with a compact size, it is easy to carry and fit into any audio system without taking up much space, perfect for on-the-go use. The all-metal design ensures durability while shielding electronics from electromagnetic interference and reducing noise. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\u003cspan\u003eWarm tips:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e1.Equipped with USB to DC cable, \u003c\/span\u003e\u003cspan\u003eNOT include power adapter, can use phone charger\/power bank to power it.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e2.\u003c\/span\u003e\u003cspan\u003eIt is not recommended to use computer to power L1 MINI, as it may cause noise interference.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003eAudio input: 3.5mm AUX \/ Stereo RCA\u003c\/li\u003e\n\u003cli\u003eAudio output: Stereo RCA\u003c\/li\u003e\n\u003cli\u003eGain: 10 times, 20dB\u003cspan\u003e (adjustable)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency response: 20Hz-20KHz\u003c\/li\u003e\n\u003cli\u003eTHD:\u003cspan\u003e 0.06% Max\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eS\/N ratio: ＞90dB\u003c\/li\u003e\n\u003cli\u003eInput sensitivity:\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e150mW\/50KHz at 1KHz\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eMax output amplitude: ±12.5V\u003c\/li\u003e\n\u003cli\u003eInput voltage: DC 5V (≥350mA)\u003c\/li\u003e\n\u003cli\u003eDC plug size: 5.5*2.5mm\u003c\/li\u003e\n\u003cli\u003eWorking voltage of amplification part: DC 26V\u003c\/li\u003e\n\u003cli\u003eDimensions(W*D*H): \u003cspan\u003e65*89*27mm \/ 2.56*3.50*1.06in\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003ePackage dimensions(W*D*H):\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e130*80*90mm \/ 5.12*3.15*3.54in\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eNet weight:\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e141g \/ 0.31lb\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003ePackage weight:\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e300g \/ 0.66lb\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003ePacking List\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003e1*L1 MINI Stereo Line Level Booster\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1*USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cspan\u003eWho Needs Douk Audio L1 MINI Stereo Line Level Booster?\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cspan\u003e1. Want to correct the sonic mismatch issues that often cause the output volume of portable players\/MP3\/computer lower than other home audio devices, resulting in distorted sound performance.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cspan\u003e2. Want to enhance the output level of karaoke players or CD\/DVD player to transform your stereo music to thrilled sound for party or outdoor events, provide low-noise and high musical accuracy for listening and recording.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\"\u003e\u003cspan\u003e3. Want to provide an external way of volume control for any audio source device or stereo amplifier that has no output level or volume adjustment of its own.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47411215499496,"sku":"XZ-L1-MINI-US","price":39.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47411215532264,"sku":"XZ-L1-MINI-UK","price":39.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47411215565032,"sku":"XZ-L1-MINI-DE","price":39.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47411215597800,"sku":"XZ-L1-MINI-AU","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47411215630568,"sku":"XZ-L1-MINI","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/2_bff1ed7c-97ef-4d0e-a9a9-90ede5ea3d76.jpg?v=1728898138"},{"product_id":"nobsound-vol-3-mini-passive-preamp-with-volume-controller-for-power-amplifier-active-speakers","title":"Nobsound VOL-3 Mini Passive Preamp with Variable Audio Attenuator for Power Amplifier Active Speakers","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eWarm tips\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003e1. Please use high-quality RCA cables with good shielding performance, otherwise there will be noise.\u003cbr\u003e2. With no gain, no any amplification, only control the signal from the audio source to the backend devices.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\u003cspan\u003eWhy use passive preamp?\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eMany sound source such as HIFI PC sound card, DAC, CD players, are with high output signal, some active speakers and pure power amplifiers have high gain themselves, so they needn’t match active preamp to amplify the signal. Passive preamp is the best choice to reduce the sound rendering at the most extent because of no power transistor.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003ePassive preamp with no gain: Designed without built-in gain, the passive preamp is suitable for connecting to HiFi PC sound card, DAC and CD players with high output signal, as well as active speakers and pure power amplifiers with high gain themselves.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eLossless audio performance: Enjoy pristine audio quality without any coloration or distortion. With the only standard RCA input and output, and a simple volume knob, the design focuses on delivering the purest sound without unnecessary functions.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eHigh-quality ALPS potentiometer: Featuring ALPS A50K dual potentiometer without stepping, the passive preamp allows for smooth and precise volume control, ensuring an optimal listening experience.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eSuperior RCA terminals: Equipped with US CMC-816U RCA connectors made of oxygen-free copper and plated with 24K gold, ensures signal clarity and durability, minimizing any loss in audio quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eElegant and portable design: Housed in a CNC-machined full aluminum alloy chassis, the preamp is both stylish and compact, making it easy to integrate into any audio system while enhancing the aesthetic appeal.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Nobsound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: VOL-3\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: Stereo RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: Stereo RCA \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower required: No\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eColor: Black\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 94*52*43mm \/ 3.70*2.05*1.69in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 180*88*70mm \/ 7.09*3.46*2.76in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 224g \/ 0.49lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage weight: 300g \/ 0.66lb\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003ePacking list\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* Passive preamp\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47411215859944,"sku":"SUC-VOL-3-US","price":46.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47411215892712,"sku":"SUC-VOL-3-UK","price":46.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47411215925480,"sku":"SUC-VOL-3-DE","price":46.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47411215958248,"sku":"SUC-VOL-3-AU","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47411215991016,"sku":"SUC-VOL-3","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/SUC-VOL-3_1.jpg?v=1729155893"},{"product_id":"douk-audio-a5-tpa3255-stereo-amp-hifi-audio-class-d-amplifier-high-pass-filter","title":"Douk Audio A5 TPA3255 Stereo Amp HiFi Audio Class D Amplifier High-pass Filter","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv data-mind-map='[{\"type\":5,\"data\":{\"id\":\"\",\"title\":\"HiFi Sound with Adjustable High-Pass Filter: This TPA3255 amplifier features an adjustable high-pass filter (HPF) 30-200Hz to refine mid-high frequencies while minimizing low-frequency interference. Perfect for bookshelf or passive speakers, it enhances clarity and creates a dynamic soundstage ideal for home stereo and theater audio systems.\"}}]'\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003eHiFi Sound with Adjustable High-Pass Filter: This TPA3255 amplifier features an adjustable high-pass filter (HPF) 30-200Hz to refine mid-high frequencies while minimizing low-frequency interference. Perfect for bookshelf or passive speakers, it enhances clarity and creates a dynamic soundstage ideal for home stereo and theater audio systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv data-mind-map='[{\"type\":5,\"data\":{\"id\":\"\",\"title\":\"Easy Customization with Plug-and-Play Op-Amps: Upgrade your sound effortlessly! Douk Audio A5 includes a tempered glass access panel for quick op-amp replacements, allowing audiophiles to tailor sound profiles without disassembling the unit.\"}}]'\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003eEasy Customization with Plug-and-Play Op-Amps: Upgrade your sound effortlessly! Douk Audio A5 includes a tempered glass access panel for quick op-amp replacements, allowing audiophiles to tailor sound profiles without disassembling the unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv data-mind-map='[{\"type\":5,\"data\":{\"id\":\"\",\"title\":\"PFFB Technology and High-Performance PCB: Built with Post-Filter Feedback technology circuit and a 4-layer immersion gold PCB, this digital amplifier reduces distortion and improves frequency response. Enjoy unparalleled audio precision, enhanced signal integrity, and effective heat management.\"}}]'\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003ePFFB Technology and High-Performance PCB: Built with Post-Filter Feedback technology circuit and a 4-layer immersion gold PCB, this digital amplifier reduces distortion and improves frequency response. Enjoy unparalleled audio precision, enhanced signal integrity, and effective heat management.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv data-mind-map='[{\"type\":5,\"data\":{\"id\":\"\",\"title\":\"Stunning Design for Living Rooms and Studios: Sleek and modern, the compact power amp is equipped with a transparent panel and adjustable internal LED lighting. Multiple color options create a futuristic look, adding sophistication to your home audio setup or studio.\"}}]'\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003eStunning Design for Living Rooms and Studios: Sleek and modern, the compact power amp is equipped with a transparent panel and adjustable internal LED lighting. Multiple color options create a futuristic look, adding sophistication to your home audio setup or studio.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\" data-mind-map='[{\"type\":5,\"data\":{\"id\":\"\",\"title\":\"300W×2 Power with Premium Components: Powered by the TPA3255 chip and premium components, A5 delivers distortion-free audio with ultra-low THD (0.002%) which is perfectly compatible with the DAC-Q11. Whether you’re enjoying weekend movie nights, evening music sessions, or after-work relaxation, A5 can deliver exceptional sound quality.\"}}]'\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e300W×2 Power with Premium Components: Powered by the TPA3255 chip and premium components, A5 delivers distortion-free audio with ultra-low THD (0.002%) which is perfectly compatible with the DAC-Q11. Whether you’re enjoying weekend movie nights, evening music sessions, or after-work relaxation, A5 can deliver exceptional sound quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003eWarm tips\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eThe A5 with 2PCS pluggable NE5532 op-amps, can be upgraded by dual op-amps like 2134\/2604\/5532\/2068\/muse02 etc.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003eParameters\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Douk Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: A5\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: Stereo RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: Banana speaker jacks\/3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-pass filter adjustment range: 30Hz-200Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMax. output power: 300W*2 (4Ω\u003c\/span\u003e\u003cspan\u003e)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMatched speaker impedance: 4-8Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD+N: 0.002%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSNR: \u003c\/span\u003e\u003cspan\u003e≥\u003c\/span\u003e\u003cspan\u003e114dB\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput sensitivity: 2V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eAUX\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003er\u003c\/span\u003eated output level\u003cspan\u003e: 3.7V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFrequency response: 20Hz-20kHz (±\u003c\/span\u003e\u003cspan\u003e0.7dB)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWorking voltage: \u003c\/span\u003eDC 24-48V\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 95*92*50 \/ 3.74*3.62*1.97in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 265*240*65mm \/ 10.43*9.45*2.56in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 506g \/ 1.12lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight(with 32V5A power supply): 1100g \/ 2.43lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight(with 48V5A power supply): 1200g \/ 2.65lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003ePower Output Table of  The A5\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSpeaker Impedance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRated Output Power\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\u003cspan\u003e32V\/5A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e4Ω \u003c\/td\u003e\n\u003ctd\u003e78W+78W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω \u003c\/td\u003e\n\u003ctd\u003e71W+71W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω \u003c\/td\u003e\n\u003ctd\u003e65W+65W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\u003cspan\u003e36V\/6A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e4Ω \u003c\/td\u003e\n\u003ctd\u003e107W+107W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω \u003c\/td\u003e\n\u003ctd\u003e100W+100W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω \u003c\/td\u003e\n\u003ctd\u003e94W+94W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\u003cspan\u003e48V\/5A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e4Ω \u003c\/td\u003e\n\u003ctd\u003e120W+120W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω \u003c\/td\u003e\n\u003ctd\u003e110W+110W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω \u003c\/td\u003e\n\u003ctd\u003e102W+102W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\n\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e48V\/10A\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e4Ω \u003c\/td\u003e\n\u003ctd\u003e250W+250W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω \u003c\/td\u003e\n\u003ctd\u003e210W+210W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω \u003c\/td\u003e\n\u003ctd\u003e185W+185W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePacking list\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* A5 Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* DC 32V\/5A Power Adapter(Optional)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* DC 48V\/5A Power Adapter(Optional)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"With 32V\/5A Power Supply \/ US","offer_id":47038634918120,"sku":"SUC-A5-32V-US","price":89.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Supply \/ UK","offer_id":47406571225320,"sku":"SUC-A5-32V-UK","price":89.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Supply \/ EU","offer_id":47406571258088,"sku":"SUC-A5-32V-DE","price":89.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Supply \/ AU","offer_id":47406571290856,"sku":"SUC-A5-32V-AU","price":89.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Supply \/ China","offer_id":47406571323624,"sku":"SUC-A5-32V","price":89.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Supply \/ US","offer_id":47038634950888,"sku":"SUC-A5-48V-S-US","price":109.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Supply \/ UK","offer_id":47406571356392,"sku":"SUC-A5-48V-S-UK","price":109.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Supply \/ EU","offer_id":47406571389160,"sku":"SUC-A5-48V-S-DE","price":109.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Supply \/ AU","offer_id":47406571421928,"sku":"SUC-A5-48V-S-AU","price":109.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Supply \/ China","offer_id":47406571454696,"sku":"SUC-A5-48V-S","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_c512f7bf-2c6e-4b53-8779-6dce46d2356d.jpg?v=1733980976"},{"product_id":"douk-audio-e2-tube-headphone-amplifier-xlr-4-4mm-6-35mm-hifi-stereo-preamplifier","title":"Douk Audio E2 Tube Headphone Amplifier XLR\/4.4mm\/6.35mm HiFi Stereo Preamplifier","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePowerful Output and Wide Compatibility: The E2 delivers a powerful output of up to 2000mW, powered by two TPA6120 chips, capable of driving headphones of 16Ω to 600Ω. It supports XLR\/4.4mm\/6.35mm jack, including an equipped 6.35mm to 3.5mm adapter, compatible with the vast majority of headphones.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHigh-Performance Preamp: E2 is also a powerful preamp with dual RCA inputs and intuitive switches, allowing you to effortlessly switch between audio sources. Whether you want to use it as a headphone amplifier or a pre-amplifier, or even both at the same time, the E2 ensures an ultra-flexible and dynamic listening experience.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eLuxury ECF801 Tube for Unmatched Sound: The E2 is equipped with German Valvo ECF801 tube, renowned for its rare availability and exceptional quality. Operating at a high internal voltage up to 175V, the military-grade tube delivers immersive audio, capturing the essence of classic tube sound.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTimeless Retro VU Meter and Wood Design: The vintage-style vacuum tubes, VU meter and walnut wood panels, mounted on the exterior of the aluminum casing, seamlessly blend natural beauty with industrial elegance. A stunning piece that enhances any space, from home audio setups to professional studios. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eCustomizable Op-amp and High-End Components: \u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eThe E2 adopts LME49720 op-amp, giving you the flexibility to swap and tailor the sound to your preferences, along with premium components like Japanese ALPS potentiometer and German WIMA capacitors, ensuring superior sound quality and performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWarm tips\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1. Due to scarcity, the two square Wima capacitors are used parts taken from previous devices.  \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2.The working voltage of E2 is DC 15V(≥3A), below or over this will cause bad performance or damage. \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e3.The three headphone jacks cannot output simultaneously. Please select one jack for use.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4.Stereo RCA output and headphone output can work at the same time, and the volume\/gain of the two outputs are controlled simultaneously.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e5.E2 adopts 1PC NE5532 and 1PC 49720 op-amps. Only 49720 op-amp is pluggable and supports to be replaced by dual op-amps like 2604\/2134\/muses02 etc.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBrand: Douk Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel: E2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: 2 groups of stereo RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: Stereo RCA\/4-pin XLR\u0026amp;4.4mm\u0026amp;6.35mm headphone jack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20Hz-20kHz (±0.5dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD+N: 0.02%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR: ≥110dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMatched headphone impedance: 16-600Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHeadphone output power: Low gain(L): 0.55W   High gain(H): 2W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRCA output level: Low gain(L): 4.3V   High gain(H): 8.4V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput sensitivity: 2V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking voltage: DC 15V\/≥3A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions (W*D*H): 95*92*50mm \/ 3.74*3.62*1.97in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage dimensions (W*D*H): 280*230*110mm \/ 11.02*9.05*4.33in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight: 1.17kg \/ 2.58lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight: 1.6kg \/ 3.53lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking list\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1* E2 Headphone Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2* ECF801 Tubes\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1* DC 15V Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1* 6.35mm to 3.5mm Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1* User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47406458962152,"sku":"SUC-E2-US","price":219.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406458994920,"sku":"SUC-E2-UK","price":219.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406459027688,"sku":"SUC-E2-DE","price":219.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406459060456,"sku":"SUC-E2-AU","price":219.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406459093224,"sku":"SUC-E2","price":219.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_0c103343-73aa-440a-bf3b-766a64b8d1d7.jpg?v=1735118296"},{"product_id":"douk-audio-ns-14grpo-hifi-2-1-channel-bluetooth-tpa3255-digital-amplifier-subwoofer-stereo-audio-amp","title":"Douk Audio NS-14G PRO HiFi 2.1 Channel Bluetooth TPA3255 Digital Amplifier Subwoofer Stereo Audio Amp","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eWarm tips:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eThe vice power socket is designed to provide extra power when needed, requiring a power supply of the same voltage. If using only one power supply, please connect it to the main power socket.  \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003e2.1 channel Bluetooth amplifier: NS-14G Pro features Bluetooth, RCA, and AUX inputs, along with AUX, speaker, and SUB outputs, making it compatible with a wide range of audio sources, including smartphones, laptops, computers, CD\/DVD players, and TVs. Equipped with the QCC304X Bluetooth chip, it supports advanced audio codecs like aptX\/aptX-HD, ensuring low power consumption for extended battery life and robust connectivity that minimizes dropouts.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003ePowerful output with dual TPA3255 chips: utilizing 2PCS TI TPA3255 chips, NS-14G Pro delivers an impressive maximum output power of 300W per channel (L\/R) and 300W for the subwoofer. With the equipped 48V\/5A power adapter, it can easily drive most home passive speakers and subwoofers. Alongside its high power output, the high-quality amp chips also contribute to exceptional sound quality, with a THD of only 0.01% and a SNR no less than 108dB. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eDual power sockets for enhanced reliability: designed with a reliable backup power source, the NS-14G Pro ensures continuous operation during a main power supply insufficiency or even failure. The secondary supply activates promptly, maintaining circuit functionality and delivering sufficient power to the high-performance digital amplifier for uninterrupted audio playback.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eThree-sided ventilation for optimal cooling: featuring ventilation openings on the sides and bottom specially designed for high power amps, NS-14G Pro maintains optimal operating temperatures, stabilizing performance and preventing overheating that can lead to distortion. This design enhances the overall reliability and fidelity, resulting in clearer and more accurate audio output.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eUser-friendly control and premium components: NS-14G Pro offers adjustable frequency, volume, and gain controls of subwoofer, along with main volume, bass, and treble adjustments for versatile sound management. The incorporation of Rubycon filter capacitors, Siemens coupling capacitors, Taiwan fully enclosed potentiometer, full copper shielded inductors enhances sound quality, stability, and reliability, ultimately delivering superior performance and longevity.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003eParameters\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Douk Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: NS-14G Pro\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: Stereo RCA\/AUX\/Bluetooth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: Banana speaker jacks\/AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChipset: TPA3255*2+QCC304X (supports aptX\/aptX LL\/aptX HD\/SBC\/AAC)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMax. output power: 300W*2 (L\/R channel)+300W (subwoofer)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNumber of channels: 2.1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSpeaker impedance: 4-8Ω(L\/R)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e                                 2-8Ω(subwoofer)\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD+N: 0.01% (1kHz)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: ≥108dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 20Hz-20kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSubwoofer gain: ±4dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSubwoofer cutoff frequency range: 50Hz-220Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBass\/treble adjustment range: ±6dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAUX output level: 1.4V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput sensitivity: 2V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBluetooth max. sampling rate: 48KHz\/24bit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorking voltage: DC 24-48V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 155*125*42mm \/ 6.10*4.92*1.65in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 300*230*70mm \/ 11.81*9.06*2.76in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 768g \/ 1.69lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 1.6kg \/ 3.53lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003ePower Output Table of  NS-14G Pro\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Adapter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSpeaker Impedance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSpeaker L\/R Output Power\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSubwoofer Output Power\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\u003cspan\u003eDC 48V\/5A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120W+120W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e270W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e6Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e110W+110W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e225W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e8Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e102W+102W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\u003cspan\u003eDC 48V\/10A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250W+250W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e300W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e6Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e225W+225W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e225W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e8Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150W+150W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003ePacking list\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* NS-14G Pro Power Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* DC 48V\/5A Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* Bluetooth Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47198664392936,"sku":"SUC-NS-14G-PRO-48V-S-US","price":134.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406457061608,"sku":"SUC-NS-14G-PRO-48V-S-UK","price":134.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406457094376,"sku":"SUC-NS-14G-PRO-48V-S-DE","price":134.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406457127144,"sku":"SUC-NS-14G-PRO-48V-S-AU","price":134.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406457159912,"sku":"SUC-NS-14G-PRO-48V-S","price":134.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_a8158e88-6fe2-4652-891b-466c4a74a73f.jpg?v=1735550174"},{"product_id":"douk-audio-a5-pro-tpa3255-bluetooth-amplifier-hifi-class-d-stereo-audio-amp","title":"Douk Audio A5 PRO TPA3255 Bluetooth Amplifier HiFi Class D Stereo Audio Amp","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eUpgraded Features for Versatile Use\u003c\/span\u003e: The A5 PRO builds on the strengths of the A5, featuring upgraded Bluetooth 5.1 connectivity with a reset button, bass and treble knobs for precise\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003etone\u003c\/span\u003e adjustments, and a headphone output. It delivers clear, powerful audi\u003cspan\u003eo, \u003c\/span\u003eperfect for diverse uses from bedroom movies to\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003edesktop\u003c\/span\u003e setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eEasy Customization with Plug-and-Play Op-Amps: Upgrade your sound effortlessly! Douk Audio A5 \u003cspan\u003ePRO\u003c\/span\u003e includes a tempered glass access panel for quick op-amp replacements, allowing audiophiles to tailor sound profiles without disassembling the unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003ePFFB Technology and High-Performance PCB: Built with Post-Filter Feedback technology circuit and a 4-layer immersion gold PCB, this digital amplifier reduces distortion and improves frequency response. Enjoy unparalleled audio precision, enhanced signal integrity, and effective heat management.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eStunning Design for Living Rooms and Studios: Sleek and modern, the compact power amp is equipped with a transparent panel and adjustable internal LED lighting. Multiple color options create a futuristic look, adding sophistication to your home audio setup or studio.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eImpressive Power Output: The A5 PRO delivers a maximum output of 300W\u003c\/span\u003e\u003cspan\u003e×\u003c\/span\u003e\u003cspan\u003e2 with TPA3255, perfect for driving high-power systems, and 500mW@32Ω \u003c\/span\u003e\u003cspan\u003efor detailed, dynamic headphone listening.\u003c\/span\u003e \u003cspan\u003eWith premium components like Rubycon\/WIMA capacitors, it\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eensures optimal performance with bookshelf speakers and other devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eWarm tips\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e1. The A5\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ePRO\u003c\/span\u003e with 2PCS pluggable NE5532 op-amps, can be upgraded by dual op-amps like 2134\/2604\/5532\/2068\/muse02 etc.\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e2. The speaker output, AUX and 3.5mm headphone jack output can work at the same time, and the volume\/treble\/bass of the three outputs are controlled simultaneously.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Douk Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: A5 PRO\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: Bluetooth \/ Stereo RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: Banana speaker jacks \/ AUX \/ 3.5mm headphone jack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeadphone output power: 500mW\/32Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMatched headphone impedance: 16-600Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMax. output power: 300W*2 (4Ω)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMatched speaker impedance: 4-8Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 20Hz-20KHz (±1dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD+N: 0.003%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: ≥113dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBass\/treble range: ±6dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBluetooth version: 5.1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRCA input sensitivity: 2V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAUX rated output level: 3.7V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorking voltage: DC 24-48V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 130*112*33mm \/ 5.12*4.41*1.30in \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 265*240*65mm \/ 10.43*9.45*2.56in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 525g \/ 1.16lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 1.2kg \/ 2.65lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePower Output Table of  A5 PRO\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable style=\"margin-left: 0px; margin-right: auto;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eSpeaker Impedance\u003c\/td\u003e\n\u003ctd\u003eRated Output Power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e32V\/5A\u003c\/td\u003e\n\u003ctd\u003e4Ω \u003c\/td\u003e\n\u003ctd\u003e78W+78W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω \u003c\/td\u003e\n\u003ctd\u003e71W+71W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω \u003c\/td\u003e\n\u003ctd\u003e65W+65W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e36V\/6A\u003c\/td\u003e\n\u003ctd\u003e4Ω \u003c\/td\u003e\n\u003ctd\u003e107W+107W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω \u003c\/td\u003e\n\u003ctd\u003e100W+100W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω \u003c\/td\u003e\n\u003ctd\u003e94W+94W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e48V\/5A\u003c\/td\u003e\n\u003ctd\u003e4Ω \u003c\/td\u003e\n\u003ctd\u003e120W+120W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω \u003c\/td\u003e\n\u003ctd\u003e110W+110W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω \u003c\/td\u003e\n\u003ctd\u003e102W+102W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\n\u003cbr\u003e48V\/10A\u003cbr\u003e\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e4Ω \u003c\/td\u003e\n\u003ctd\u003e250W+250W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6Ω \u003c\/td\u003e\n\u003ctd\u003e210W+210W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8Ω \u003c\/td\u003e\n\u003ctd\u003e185W+185W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003ePacking list\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* A5 PRO Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* DC 32V\/5A Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* Bluetooth Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"With 32V\/5A Power Adapter \/ US","offer_id":47198645092584,"sku":"SUC-A5-PRO-32V-US","price":114.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ UK","offer_id":47406404370664,"sku":"SUC-A5-PRO-32V-UK","price":114.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ EU","offer_id":47406404403432,"sku":"SUC-A5-PRO-32V-DE","price":114.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ AU","offer_id":47406404436200,"sku":"SUC-A5-PRO-32V-AU","price":114.99,"currency_code":"USD","in_stock":true},{"title":"With 32V\/5A Power Adapter \/ Other","offer_id":47406404468968,"sku":"SUC-A5-PRO-32V","price":114.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ US","offer_id":47198645125352,"sku":"SUC-A5-PRO-48V-S-US","price":134.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ UK","offer_id":47406404501736,"sku":"SUC-A5-PRO-48V-S-UK","price":134.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ EU","offer_id":47406404534504,"sku":"SUC-A5-PRO-48V-S-DE","price":134.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ AU","offer_id":47406404567272,"sku":"SUC-A5-PRO-48V-S-AU","price":134.99,"currency_code":"USD","in_stock":true},{"title":"With 48V\/5A Power Adapter \/ Other","offer_id":47406404600040,"sku":"SUC-A5-PRO-48V-S","price":134.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/SUC-A5-PRO_1.jpg?v=1740377698"},{"product_id":"nobsound-ns-01g-max-mini-bluetooth-power-amplifier-2-0-channel-home-audio-amp-100w-100w","title":"Nobsound NS-01G MAX Mini Bluetooth Power Amplifier 2.0 Channel Home Audio Amp 100W+100W","description":"\u003cp\u003e\u003cspan\u003eWarm tips:\u003cbr\u003e1. The PRE OUT is designed to connect an active subwoofer, active speakers or amplifiers, doesn't support headphones.\u003cbr\u003e2. AUX input with prioity, please unplug the AUX cable if you want to use Bluetooth input.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eVersatile Wireless \u0026amp; Wired Connectivity: NS-01G MAX supports Bluetooth 5.0 input, offers stable wireless connection up to 10–15 meters for phones and tablets. With 3.5mm AUX input, compatible with traditional devices like CD players, DACs or sound cards. Also perfect as a Bluetooth receiver, breathes new life into your non-wireless active speakers.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFlexible PRE OUT for Higher Playability: With 3.5mm jack out, enabling easy integration with a powered subwoofer for deep bass in 2.1 channel setups or connection to audio receivers \u0026amp; amps \u0026amp; active speakers for multi-channel surround sound systems. Ideal for upgrading your stereo speakers into a theater-like experience.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCompact but with High-power Output: TPA3221 chip provides 100 Watt×2 out and comes with optional 19V power adapter. Its robust performance can effortlessly drive 3-8Ω bookshelf speakers rated between 20–120W, the ideal choice to elevate audio setups while delivering HiFi-grade sound quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eStrong Adaptability for Various Scenarios: Not only designed for home \u0026amp; desktop audio setup, NS-01G MAX also seamlessly integrates with motorcycle, car and marine audio systems. Also features smooth and precise volume control and real-time dual-color LED indicator, easy to experience crystal-crear Hi-Fi sound quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFully functional yet Super Mini: With overheat, overload and short circuit protection, this space-saving digital amplifier also features reasonable circuit and durable aluminum alloy casing, greatly improve the heat-dissipation to ensure its reliable and stable use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv\u003e\n\u003cspan\u003eParamters\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand: Nobsound\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eModel: NS-01G MAX\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio input: Bluetooth 5.0 \/ 3.5mm AUX\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio output: Banana speaker jacks \/ PRE OUT\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMax. output power: 100W+100W (under 24V8A)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eOutput under default power adapter: 30W+30W\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMatched speaker impedance: 3-8Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFrequency response: 20Hz-20KHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSNR: ≥98dB\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTHD: ≤0.01%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWorking voltage: DC 9-24V (5.5*2.5mm)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDimenesions (W*D*H): 78*70*23mm \/ 3.07*2.76*0.91in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage dimensions (W*D*H): 150*150*50mm \/ 5.90*5.90*1.97in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eNet weight: 240g \/ 0.53lb\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight (without power adapter): 400g \/ 0.88lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight (with power adapter): 500g \/ 1.10lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv\u003e\n\u003cspan\u003ePacking List\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e1 × NS-01G MAX Amplifier\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e1 × DC 19V Power Adapter \u003cstrong\u003e(Optional)\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e1 × 3.5mm AUX Cable\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 × 3.5mm AUX to RCA Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 × User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47417445941480,"sku":"DZ108-19V-3.42A-US","price":39.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47417445974248,"sku":"DZ108-19V-3.42A-UK","price":39.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47417446007016,"sku":"DZ108-19V-3.42A-DE","price":39.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47417446039784,"sku":"DZ108-19V-3.42A-AU","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47417446072552,"sku":"DZ108-19V-3.42A","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/14_ab5eda1a-a9cf-4a87-99a6-20cd6fd58a18.jpg?v=1749799055"},{"product_id":"douk-audio-p5-hifi-vaccum-tube-headphone-amplifier-stereo-audio-preamp","title":"Douk Audio P5 HiFi Vaccum Tube Headphone Amplifier Stereo Audio Preamp with 4.4\/6.35mm Jack","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eDual-Mono Architecture:\u003cstrong data-end=\"245\" data-start=\"194\"\u003e \u003c\/strong\u003eEach channel is powered by its own dedicated amplifier circuit, ensuring superior stereo separation and reduced crosstalk. Paired with a 200V high-voltage tube stage, the P5 headphone amp delivers rich, clean, and warm analog audio. This structure outperforms shared-path designs for a more immersive hi-fi listening experience.  \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVersatile Headphone Outputs: Supports both 4.4mm balanced and 6.35mm single-ended jacks, making it ideal for studio headphones and audiophile setups. With an impedance switch, you can easily adjust gain levels (5dB\/15dB) to match your headphones from 16–600Ω, ensuring optimal clarity.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eWorks as a Tube Preamp: Beyond headphones, route the P5’s analog signal through RCA OUT to your desktop power amp or active speakers. Unlock rich tube harmonics and dynamic presence in your entire audio system—ideal for audiophiles and creators seeking vintage depth with modern transparency.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eFully Customizable Experience: Featuring plug-in NE5532 op-amps and replaceable 6A2 vacuum tubes, the P5 invites you to fine-tune your sound. Roll your tubes or swap op-amps to craft your perfect sonic signature, no soldering required.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003ePremium Build with Visual Flair: Choose between a sleek full-aluminum chassis or retro walnut wood to match your style. A six-mode ambient LED system adds a visual glow synced to your music, while adjustable tube warm-up (10–30s) extends tube life and protects your headphones on startup.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eWarm tips\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003e1.The enclosure of wooden version is crafted from solid walnut. Due to the natural variation in wood grain, the actual product may differ slightly in appearance from the images.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003e2.Input and output priority is as follows: Input – AUX \u0026gt; RCA; Output – 4.4mm headphone jack\u0026gt; 6.35mm headphone jack\u0026gt; RCA. If there’s no sound, please check priority and unplug unused ports.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003e3.10-30 seconds warm-up required. It is normal for there to be no audio output during tube activation.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003e4.High voltage inside. Please power off and disconnect P5 from the power source before replacing the op-amp or vacuum tubes.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003e5.P5 adopts 2PCS pluggable NE5532 op-amps, which can be replaced by dual op-amps such as 4558\/JRC2068\/2064\/MUSE01S\/2111 etc.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003e6.P5 is designed with pluggable tube sockets, default comes with 6A2 tubes, can be replaced by 5654\/6*7N\/6AK5\/EF95\/403B tubes.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Douk Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: P5\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio input: AUX \/ RCA (Priority: \u003c\/span\u003e\u003cspan\u003eAUX \u0026gt; RCA\u003c\/span\u003e\u003cspan\u003e)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio output: \u003c\/span\u003e\u003cspan\u003e4.4mm\u0026amp;6.35mm headphone output \/ RCA\u003cbr\u003e                       (\u003c\/span\u003e\u003cspan\u003ePriority: \u003c\/span\u003e\u003cspan\u003e4.4mm headphone jack\u0026gt; 6.35mm headphone jack\u0026gt; RCA)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD: \u0026gt;0.01%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: 80dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eGain: Low impedance: 5dB@200\u003c\/span\u003e\u003cspan\u003eΩ\u003c\/span\u003e  \u003cspan\u003eHigh impedance: 15dB@600\u003c\/span\u003e\u003cspan\u003eΩ\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRCA max. output level: \u003c\/span\u003e\u003cspan\u003eLow impedance: 1.5Vrms   High impedance: 5.75Vrms\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eHeadphone output power: 200mW@32\u003c\/span\u003e\u003cspan\u003eΩ\u003c\/span\u003e\u003cspan\u003e; 80mW@300\u003c\/span\u003e\u003cspan\u003eΩ\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMatched headphone impedance: 16-600\u003c\/span\u003e\u003cspan\u003eΩ\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeadphone impedance switch: Support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eBacklight LED color\u003cspan\u003e: \u003c\/span\u003e6 modes\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eT\u003c\/span\u003eubes\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ewarm-up\u003c\/span\u003e time\u003cspan\u003e: Adjustable \u003c\/span\u003e10–30 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eInput voltage: DC 9-15V\/\u003c\/span\u003e\u003cspan\u003e≥\u003c\/span\u003e\u003cspan\u003e1A\u003c\/span\u003e \u003cspan\u003e(5.5*2.5mm)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDimensions (W*D*H):\u003cbr\u003e102*102*40mm \/ 4.01*4.01*1.57in (wooden version);\u003cbr\u003e\u003c\/span\u003e102*102*40mm\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\/ 4.01*4.01*1.57in  (aluminum version)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage dimensions (W*D*H):\u003cbr\u003e210*185*96mm \/ 8.27*7.28*3.78in (wooden version); \u003cbr\u003e\u003c\/span\u003e210*185*96mm\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\/ 8.27*7.28*3.78in (aluminum version)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eNet weight:\u003cbr\u003e310g \/ 0.68lb (wooden version); \u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e420g \/ 0.92lb (aluminum version)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage weight:\u003cbr\u003e0.6kg \/ 1.32lb (wooden version); \u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e0.7kg \/ 1.54lb (aluminum version)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003ePacking list\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* P5 Headphone Amp (Optional)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1* DC 12V Power Adapter\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e2* 6A2 Tubes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"Walnut Wood \/ US","offer_id":47373416071400,"sku":"XX-P5-M-US","price":89.99,"currency_code":"USD","in_stock":false},{"title":"Walnut Wood \/ UK","offer_id":47406466597096,"sku":"XX-P5-M-UK","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Walnut Wood \/ EU","offer_id":47406466629864,"sku":"XX-P5-M-DE","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Walnut Wood \/ AU","offer_id":47406466662632,"sku":"XX-P5-M-AU","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Walnut Wood \/ Other","offer_id":47406466695400,"sku":"XX-P5-M","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Aluminum Alloy \/ US","offer_id":47373416104168,"sku":"XX-P5-L-US","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Aluminum Alloy \/ UK","offer_id":47406466728168,"sku":"XX-P5-L-UK","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Aluminum Alloy \/ EU","offer_id":47406466760936,"sku":"XX-P5-L-DE","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Aluminum Alloy \/ AU","offer_id":47406466793704,"sku":"XX-P5-L-AU","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Aluminum Alloy \/ Other","offer_id":47406466826472,"sku":"XX-P5-L","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/2_e88cad32-2df6-462b-8f9b-4a53ff519828.jpg?v=1748230781"},{"product_id":"nobsound-hifi-bluetooth-vacuum-tube-6p1-6n1-stereo-amp","title":"Nobsound DA7 HiFi Vacuum Tube Power Amplifier with Bluetooth\/RCA\/USB IN","description":"\u003cdiv\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eAuthentic Pure Tube Amplifier: Adopting 4*6P1 tubes for power amplification stage and 3*6N1 for voltage amplification and driver stages, DA7 delivers warm, natural sound with an expansive dynamic range, bringing an organic and immersive listening experience.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-end=\"199\" data-start=\"0\"\u003e\u003cspan\u003eVersatile Input Options: Equipped with dual RCA inputs, a USB port, and Bluetooth, the DA7 enables various audio sources such as phones, tablets, laptops, and more, and features a dedicated input switch knob for seamless switching.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv dir=\"auto\" data-message-model-slug=\"gpt-4o\" data-message-id=\"6f745119-1fe5-4c47-bda5-20122e1c7623\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eFast Digital \u0026amp; Wireless Connectivity: \u003c\/span\u003e\u003cspan\u003eThe DA7 supports USB 3.0 for high-speed audio transmission and superior sound quality. Its dual-mode Bluetooth 5.3\/5.0 ensures fast pairing, stable connections, and high-resolution wireless audio with lossless clarity.  \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-end=\"266\" data-start=\"0\"\u003e\n\u003cspan\u003eDual VU Meters for Real-Time Monitoring: \u003c\/span\u003e\u003cspan\u003eFeaturing two analog VU meters that respond dynamically to the power amplification signal. The warm, rhythmic needle movement adds a classic touch while providing real-time audio monitoring.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli data-is-last-node=\"\" data-end=\"913\" data-start=\"644\"\u003e\u003cspan\u003eHigh-Quality Construction: Featuring an imported wideband EI output transformer, gold-plated pure copper connectors, and a durable steel mesh protective cover that enhances tube safety while ensuring efficient heat dissipation.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Nobsound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: DA7\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: Bluetooth \/ Stereo RCA \/ USB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: Banana speaker jacks \/ Stereo RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTube model: 6P1*4+6N1*3\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRated output power: 12W×2 (4Ω); 8W×2 (8Ω)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 10Hz-40KHz (-3dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD: 1% (1KHz)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: 85dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput sensitivity: 300mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput impedance: 100KΩ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOutput impedance: 4Ω \/ 8Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower consumption: 150W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMax storage of U-disk: 128G\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupported file system of U-disk: FAT32 \/ ExFAT\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupported formats of U-disk: MP3 \/ WMA \/ APE \/ FLAC \/ AAC \/ WAV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput voltage: AC 220V IN\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 318*305*155mm \/ 12.52*12.01*6.10in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 410*350*220mm \/ 16.14*13.78*8.66in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 7.6kg \/ 16.75lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage weight: 8.5kg \/ 18.74lb\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003ePacking list\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1* DA7 Tube Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Power Cord\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Bluetooth Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47571590119656,"sku":"DZ105-US","price":349.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47571590152424,"sku":"DZ105-UK","price":349.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47571590185192,"sku":"DZ105-DE","price":349.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47571590217960,"sku":"DZ105-AU","price":469.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47571590250728,"sku":"DZ105","price":469.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_a5ec85c3-e364-45c0-936d-5ccf0362368f.jpg?v=1754642778"},{"product_id":"douk-audio-g7-2-0-4-0-channel-digtial-amplifier","title":"Douk Audio G7 2.0\/4.0 Channel Digital Amplifier","description":"\u003cdiv\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli data-end=\"492\" data-start=\"220\"\u003e\n\u003cspan\u003e2\/4 Channel Outputs for Flexible Listening: W\u003c\/span\u003e\u003cspan\u003eith 2 sets of switchable or simultaneous speaker outputs for A\/B testing or dual-zone setups. Perfect speaker selector\/switcher for bookshelf and floor-standing speakers in any audio setup.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-end=\"760\" data-start=\"494\"\u003e\n\u003cspan\u003eVersatile Inputs for Seamless Integration: \u003c\/span\u003e\u003cspan\u003eBalanced XLR+TRS combo and dual RCA inputs ensure clean, noise-free audio with pro-grade compatibility, making it the best match for high-performance DACs and streamers like the Eversolo players.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-end=\"1026\" data-start=\"762\"\u003e\n\u003cspan\u003eFlagship Chipset for Optimal Performance: \u003c\/span\u003e\u003cspan\u003eEquipped with 2PCS TPA3255 chips delivering up to 300W×2 or 150W×4 output. Paired with an internal 48V\/10A GaN power module for efficient performance, and mastered by NJW1194 IC and OPA1612 op-amps for pristine audio quality.  \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-end=\"1291\" data-start=\"1028\"\u003e\u003cspan\u003eTone Control \u0026amp; Pure Bypass Mode: Enjoy ±10dB of bass and treble shaping, also engaging the Bypass Mode disables the tone and volume circuits. Enjoy the ultimate flexibility of an integrated amp or the uncolored, original signal path of a pure power amp for critical listening. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-end=\"1563\" data-start=\"1293\"\u003e\n\u003cspan\u003eIconic VU Meters \u0026amp; Smart Control: The large, retro blue VU meters\u003c\/span\u003e\u003cspan\u003e with AGC provide captivating, real-time visual feedback. Modern convenience is built-in with 12V trigger for synced power, full-function remote, instant mute, creating a fully immersive HiFi audio system.  \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan\u003eQ: Is volume control available in Bypass Mode?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003eA: \u003c\/strong\u003eNo, in Bypass Mode, both volume and tone control are unavailable. The amplifier's volume is set to maximum by default. Please lower the source volume before switching to this mode to prevent hearing damage and speaker damage.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan\u003eQ: What should I use the 12V trigger input for?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003eA: \u003c\/strong\u003eThe 12V trigger input is for preamps or DACs with a trigger output to sync power on\/off. Please do not use it as an audio input or connect to a power supply.  \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan\u003eQ: Are there any specific requirements for the speakers connected to the A and B channels?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003eA: \u003c\/strong\u003eIt is recommended to use speakers of 4-8Ω with matching impedance for each channel. For example, use two 4Ω speakers for channel A output and two 8Ω speakers for channel B output.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan\u003eQ: Does the remote control include batteries?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003eA: \u003c\/strong\u003eFor safer and faster delivery, the remote control may not include batteries (AAA*2). Please prepare the batteries yourself.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan\u003eQ: Can the brightness and color of the VU meter be adjusted?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003eA: \u003c\/strong\u003eNo, the brightness and color of the VU meter are fixed and cannot be adjusted.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Douk Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: G7\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: 2 groups of RCA\/TRS+XLR combo input\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: 2 groups of Banana speaker jacks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAmplifier chips: 2×TPA3255\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNumber of channels: Selectable 2-channel \/ 4-channel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMax. output power: 300W*2@4Ω (2-channel output); 150W*4@4Ω+4Ω (4-channel output)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in power supply: DC 48V\/10A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOp-amp chips: 3×OPA1612\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 20Hz-20kHz (±0.5dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD+N: 0.002%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: ≥112dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput sensitivity: RCA: 2V; TRS+XLR: 4V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMatched speaker impedance: 4-8Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTreble\/bass range: ±10dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVU Meter Dimensions: 85*45.4mm \/ 3.34*1.79in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMute function: Supported\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBypass function: Supported\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemote control: Supported\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput voltage: AC 100-240V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 275*190*78mm \/ 10.83*7.48*3.07in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 435*265*110mm \/ 17.12*10.43*4.33in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 3.34kg \/ 7.36lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 5kg \/ 11.02lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cp\u003ePower Output Table of\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003et\u003c\/span\u003ehe\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eG7\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe power specifications are estimated values. Actual performance may vary based on usage conditions.\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003ca rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/image.pushauction.com\/0\/0\/a0e33258-4283-401f-a9c9-cfdc68581dd2\/2d63c7af-435f-407c-9ec4-9188b76d545c.jpg\" alt=\"\" width=\"602\" height=\"337\"\u003e\u003c\/a\u003e\u003cbr\u003e\u003c\/span\u003e\u003chr\u003e\n\u003cp\u003ePacking List\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1* G7 Amp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Remote Control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Power Cord\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47605397422312,"sku":"SUC-G7-US","price":249.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47605397455080,"sku":"SUC-G7-UK","price":249.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47605397487848,"sku":"SUC-G7-DE","price":299.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47605397520616,"sku":"SUC-G7-AU","price":249.99,"currency_code":"USD","in_stock":true},{"title":"China","offer_id":47605397553384,"sku":"SUC-G7","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/00_6b6db0b8-fa54-4436-9dca-32700ec1bd79.jpg?v=1755499396"}],"url":"https:\/\/doukaudio.com\/en-ca\/collections\/amplifer.oembed?page=4","provider":"Douk Audio","version":"1.0","type":"link"}