{"title":"VU Meter Display","description":"","products":[{"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-t4-plus-hifi-5654-tube-phono-preamp-for-turntable-stereo-preamp-headphone-amp-w-vu-meter","title":"Douk Audio T4 PLUS HiFi Vaccum Tube Phono Preamp for Turntable Stereo Preamp Headphone Amp w\/VU Meter","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eUpgraded version [from 2022\/4\/18]: add a VU meter adjustment on the side panel, easily to adjust its sensitivity to match well with different input signals and achieve better visual effects of VU meter.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan\u003eT4 PLUS tube preamp meets more HiFi audio needs:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMM \/MC phono input, support multiple input impedance switch (1KΩ\/470Ω\/220Ω\/100Ω\/47Ω\/22Ω\/10Ω), converts phono signal to line level signal, low-noise integrated circuits and high-quality components to ensure clear sound.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e3.5mm AUX input, amplify the low level audio signal from your phone, tablet, PC, MP3 etc., easier to drive amplifier or active speaker and greatly improve the sound quality.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan\u003eUnique and amazing combination in the appearance: integrated T4 PLUS preamp with retro tubes and VU meter into a whole, the pointer dancing in the warm light with strong vintage feelings when enjoy HiFi music, dynamically decorates the audio system and give you a different acoustic enjoyment with large dynamic and sweet tube sound even in limited space.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan\u003eImported JAN5725 tubes and vintage warm sound: default comes 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\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan\u003e3.5mm headphone output and perfect circuit design: T4 PLUS also with built-in classic headphone amp circuit (2*NE5532), easily to drive 32-300 ohm headphones. Reasonable and advanced architecture, TI TPS5430+7205MOS for power management, TL071+JRC2068 phono preamp circuit etc., enjoy HiFi analog sound and first-class design with an unbeatable low cost. \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eMini size and excellent performance: all designs full of details, such as solid aluminum alloy knob, gold-plated terminals, grey integrated moulding aluminum alloy shell decorates with built-in VU meter, looks vintage and elegant. Not only a MM\/MC phono preamp, but also a stereo audio preamp and headphone amplifier, especially designed for the audiophiles who pursue HiFi sound.\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\u003cstrong\u003eWarm tips:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e1. 3.5mm AUX input with priority, please make sure the AUX cable has been pulled out if want to use MM\/MC phono input.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2. Stereo RCA and 3.5mm headphone jack can output at the same time, and the knob also controls the volume of two outputs simultaneously.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\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: T4 PLUS\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio input: MM phono \/ turntable \/ 3.5mm AUX\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio output: stereo L\/R RCA \/ 3.5mm headphone jack\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMax output power of headphone jack: 150mW@32Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMatched headphone impedance: 32-300Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAUX IN\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAUX input level: 0.775V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRCA max output level: 1.5V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFrequency response: 20Hz-20KHz (±0.3dB)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eS\/N ratio: ≥110dB\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTHD: 0.2%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePhono IN\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePhono input level: 0.005V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRCA max output level: 300mV (MM) \/ 3V (MC)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFrequency response: conforms to RIAA characteristics (±3dB)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eS\/N ratio: 71dB\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTHD: 0.8%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWorking voltage: DC 12V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDimensions(W*D*H): 50*137*146mm \/ 1.97*5.39*5.75in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage dimensions(W*D*H): 300*230*65mm \/ 11.81*9.06*2.56in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eNet weight: 640g \/ 1.41lb\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 1000g \/ 2.20lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cstrong\u003ePacking List\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1*T4 PLUS Preamp\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e2*JAN5725 Vacuum 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*DC 12V 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*3.5mm to RCA Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406622933224,"sku":"SUC-T4-PLUS-US","price":109.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406622965992,"sku":"SUC-T4-PLUS-UK","price":109.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406622998760,"sku":"SUC-T4-PLUS-DE","price":109.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406623031528,"sku":"SUC-T4-PLUS-AU","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406623064296,"sku":"SUC-T4-PLUS","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/2_032e22cc-29bc-49db-9e6d-8849d2b5e133.jpg?v=1744356561"},{"product_id":"douk-audio-ct-01-box-8-pin-dual-bias-current-probes-tester-meter-for-el34-kt88-6l6-6v6-6550-kt66-tube","title":"Douk Audio CT1-BOX 8-Pin Dual Bias Current Probes Tester w\/VU Meter for EL34 KT88 6L6 6V6 6550 KT66 Tube","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eIntroduction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eCT1-BOX is designed by Douk Audio, in order to measure the cathode current of the power tube for bias reading (at low voltage side of the tubes), suitable for EL34, KT88, 6L6, 6V6, 5881, 6550, KT66, KT100, KT120, 7027 etc., equipped with large current meter, easily and distinctly to read.\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\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\n\u003cspan data-mce-fragment=\"1\"\u003eCeramic socket and gold pins for longer service life, tough gold pins with a thick gold plating.\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 style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eDual larger current meter reader, max test current range up to 100mA.\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 style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eAdopting copper wire to ensure excellent conductivity.\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 style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eEach probe tester is soldered by outstanding craftmanship.\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 style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMetal case, more solid and with better shielding performance.\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\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\n\u003cspan data-mce-fragment=\"1\"\u003eBrand: Douk Audio\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\"\u003eModel: CT1-BOX\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\"\u003eDC Plug: 5.5\/2.2 mm\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\"\u003eLength of tube socket cable: 23cm\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\"\u003eMaterial of tube socket: ceramic\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\"\u003eRange of current meter: 100mA\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 of box (W*D*H): 150*106*70mm \/ 5.90*4.17*2.75in\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: 500g \/ 1.10lb\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: 1000g \/ 2.20lb\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\u003eHow to use it ?\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eTurn off your amplifier, and connect two probe testers separately to the A and B interface of CT1-BOX.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eRemove the power tubes, insert them into the bias probe sockets.\u003c\/li\u003e\n\u003cli\u003eInsert bias meter probes into the tube sockets of the amplifier.\u003c\/li\u003e\n\u003cli\u003eTurn on your power amp, let the tubes get warm about 5 minutes, then read the bias measurement.\u003c\/li\u003e\n\u003cli\u003eThe left current meter is reading \"A\" input, and the right current meter is reading for \"B\" input. If the reading value of both are the same, that's perfect. If not , the difference should be no more than 2mA or 3mA for a good balance between the tubes.\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 Pair × Probe Tester\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 × Current Meter Box\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47408671129832,"sku":"XX-CT1-BOX-US","price":56.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47408671162600,"sku":"XX-CT1-BOX-UK","price":56.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47408671195368,"sku":"XX-CT1-BOX-DE","price":56.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47408671228136,"sku":"XX-CT1-BOX-AU","price":56.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47408671260904,"sku":"XX-CT1-BOX","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/XX-CT1-BOX_14.jpg?v=1652160518"},{"product_id":"mic-line-analog-dual-vu-meter-sound-level-indicator-audio-splitter-switcher-box","title":"Douk Audio VU2 MIC+LINE Dual Analog VU Meter Stereo RCA Audio Splitter Switcher Box Audio Spectrum Display","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eWarm Tips\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003eCompatible with most audio devices, but cannot guarantee 100%. If there exists common ground noise, please add an isolation module between VU2 and your device.\u003c\/div\u003e\n\u003cdiv align=\"center\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cbr\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 style=\"text-align: left;\" id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eVU2 VU meter \u0026amp; audio splitter box is originally designed by Douk Audio:\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\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAs an analog VU meter, with wired stereo RCA input and wireless microphone inputs, can be matched very well with most common audio device such as mobile phone, computer, CD players, or speakers and so on, very suitable for home\/office\/studio system to dynamically decorate your auditory feast.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAs a 4-way audio splitter box, VU2 can work in 4-IN-1-OUT to compare the sound quality of differet audio source among mobile phone, tablet computer, TV, CD player, DAC etc., also can work in 1-IN-4-OUT mode to do contrasts among preamp, headphone, power amplifier and active speakers etc., no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets. 4 channel can input at the same time to mixer different audio source, also can output at the same time to satisfy the requirements of monitoring or recording.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe USB interface of VU2 is only for providing power for the drive board of the VU meter, without any interference to the audio input and output circuit. VU meter and switcher box is controlled independently, and VU meter only reads audio signal from the I\/O interface, the sound quality will not be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eUnique and powerful design with exquisite appearance, cool black case and colorful indicators looks vintage and dynamic. All input and output terminas are made of lengthened gold-plated pure copper with large contact area for perfect performance and ultra-low signal loss, and equipped with remote control, very convenient to use, can \u003cspan data-mce-fragment=\"1\"\u003eperfectly match with audio device of different styles and suitable for a variety of scenarios.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cblockquote 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\"\u003eIntroduction of VU2 Gain \u0026amp; Delay adjustment and ACG\/DB mode switch:\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 id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eGain adjustment, to adjust the gain of input signal, that is the swing range of pointer. And 0dB position can be set at random when recording is needed. GAIN setting is controlled by the microcontroller internal digital adjustment, has no physical contact with the input audio signal then has no impact on sound quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDelay adjustment, to adjust the sensitivity of pointer that is the speed of pointer beating to adapt to different music styles. Generally, slow rhythm corresponds to slower beat, rock, punk and other fast-paced music is more suitable for faster beat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIn ACG mode, the input volume and the swing of pointer is not proportional. When the input volume is low, the swing amplitude of pointer is large, and when the volume is gradually increased, the swing amplitude gradually becomes small. This mode cannot truly show the input level, not suits professional recording occasions but suits people's regular hearing habits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIn DB mode, the swing of the pointer is proportional to the input signal. This display mode is suitable for some occasions that need to know the real music level, such as a recording studio or when testing a certain sound level.\u003c\/li\u003e\n\u003c\/ul\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\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003eNotice\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003e4 channel can work (input or output) at the same time, but this function only can be set by pressing the four channel buttons on the front panel, cannot be controlled by remote control.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e When in 4-IN-1-OUT mode, 4 channels of VU2 are not recommended to work in parallel, there will be some distortion if the output level of 4 players are different.\u003c\/li\u003e\n\u003cli\u003eNot recommend to power VU2 from the USB interface of audio source device, noise will be generated in this condition. \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\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\"\u003eAudio input: stereo RCA \/ Microphone\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAudio output: 4 groups of stereo RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWorking mode of switcher: 1-IN-4-OUT \/ 4-IN-1-OUT\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSensitivity adjustment: support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eGain adjustment: support (DB mode \/ ACG mode)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWorking voltage: Micro USB DC 5V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWorking current: 0.5A (dark version) \/ 1.5A (light version)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eVoltage of backlight filament: DC \/ AC 6-12V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eCurrent of backlight filament: 10mA (dark version) \/ 100mA (light version)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDynamic acceleration \/ deceleration damping modes: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePower on\/off function: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSettings saved after shutdown: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMute function: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRemote control: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDimensions(W*D*H): 280*122*80mm \/ 11.02*4.08*3.15in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eN\u003cspan data-mce-fragment=\"1\"\u003eet weight: 1.10kg \/ 2.43lb\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage weight: 1.43kg \/ 3.15lb\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\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*VU2 Meter\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*Remote Control (without batteries)\u003c\/span\u003e\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\"\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":"Light \/ US","offer_id":43062394913000,"sku":"XX-VU2-L-US","price":179.0,"currency_code":"USD","in_stock":true},{"title":"Light \/ UK","offer_id":47406699380968,"sku":"XX-VU2-L-UK","price":179.0,"currency_code":"USD","in_stock":true},{"title":"Light \/ EU","offer_id":47406699413736,"sku":"XX-VU2-L-DE","price":179.0,"currency_code":"USD","in_stock":true},{"title":"Light \/ AU","offer_id":47406699446504,"sku":"XX-VU2-L-AU","price":179.0,"currency_code":"USD","in_stock":true},{"title":"Light \/ Other","offer_id":47406699479272,"sku":"XX-VU2-L","price":189.0,"currency_code":"USD","in_stock":true},{"title":"Blue \/ US","offer_id":48613667700968,"sku":"XX-VU2-B-US","price":179.0,"currency_code":"USD","in_stock":true},{"title":"Blue \/ UK","offer_id":48613667733736,"sku":"XX-VU2-B-UK","price":179.0,"currency_code":"USD","in_stock":true},{"title":"Blue \/ EU","offer_id":48613667766504,"sku":"XX-VU2-B-DE","price":179.0,"currency_code":"USD","in_stock":true},{"title":"Blue \/ AU","offer_id":48613667799272,"sku":"XX-VU2-B-AU","price":179.0,"currency_code":"USD","in_stock":true},{"title":"Blue \/ Other","offer_id":48613667832040,"sku":"XX-VU2-B","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/XX-VU2-L_5.jpg?v=1650962351"},{"product_id":"dual-analog-vu-meter-2-way-amplifier-speaker-audio-switcher-box-db-panel-display","title":"Douk Audio VU3 Dual Analog VU Meter 2-way Amplifier\/Speaker Audio Switcher Box DB Panel Display","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: left;\"\u003e\n\u003cdiv class=\"celwidget aplus-module 3p-module-b aplus-standard\" data-csa-c-id=\"bj2s6z-xhzx0i-aazc1-bwqy08\" data-cel-widget=\"aplus-3p-module-b\" cel_widget_id=\"aplus-3p-module-b\"\u003e\n\u003cdiv class=\"aplus-module-wrapper aplus-3p-fixed-width\"\u003e\n\u003cdiv class=\"celwidget aplus-module 3p-module-b aplus-standard\" data-csa-c-id=\"bj2s6z-xhzx0i-aazc1-bwqy08\" data-cel-widget=\"aplus-3p-module-b\" cel_widget_id=\"aplus-3p-module-b\"\u003e\n\u003cdiv class=\"aplus-module-wrapper aplus-3p-fixed-width\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"celwidget aplus-module module-2 aplus-standard\" data-csa-c-id=\"61kubu-j99bqt-ah6rqi-9vukc9\" data-cel-widget=\"aplus-module-2\" cel_widget_id=\"aplus-module-2\"\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-floatnone apm-fixed-width\"\u003e\n\u003cdiv class=\"apm-sidemodule apm-spacing\"\u003e\n\u003cdiv class=\"apm-sidemodule-textright\"\u003e\n\u003ch3 class=\"a-spacing-mini\"\u003e\u003c\/h3\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\u003cstrong\u003e\u003cbr\u003eFeatures\u003c\/strong\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\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eVU3 VU meter \u0026amp; audio switcher box is originally designed by Douk Audio:\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 style=\"text-align: left;\" id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAs a VU meter, with dual 60*35mm large meter, can dynamically decorate audio environment and provide incomparably visual effects when switching audio signals.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAs an audio switcher, easily to switch between two amplifiers and 2 pair of speakers, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets.\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 id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePowerful design and strong compatibility: all channels adopt fully isolation design, each channel's GND is independent without mutual interference. Supports all kinds of amplifier such as BTL \/ class A \/ class B \/ class D digital amplifier \/ tube amplifier etc.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHigh-quality components to ensure VU3's best working performance:\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 style=\"text-align: left;\" id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1. AC 250V 5A large current relay, easily to connect amplifiers and speakers with high power.\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\"\u003e2. Built-in large power load resistor with metal wire winding, each channel supports up to 300W power input and output.\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\"\u003e3. High-precision VU meter with peak LED display, and match perfectly with customized VU driver board.\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\"\u003e4. Fully isolation transformer to acquisite audio signal to avoid crosstalk from VU driver board, ensure clear and pure sound.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e5. Solid CNC full aluminium alloy case, large pure copper banana speaker jacks ensures minimum signal attenuation during transmission.\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 id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eEasy Use \u0026amp; Perfect Details: Powered by micro-USB 5V, with built-in protection load for speakers. With remote control, can quickly set the working status from distance. All settings can be saved after shutdown, more convenient to use.\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\"\u003eProper size with exquisite appearance: cool black case, warm VU meter and clear indicators looks vintage and dynamic, can perfectly match with a variety of usage scenarios, very suitable for audiophiles who have more than one amplifiers or speakers.\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 style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eWarm tips\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eFor safer and faster delivery, the remote control may not include batteries (CR2025 3V), please prepare it by yourself.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eNot connect VU3 to amplifiers whose actual output power is greater than 300W, or else VU meter may be damaged.\u003c\/li\u003e\n\u003cli\u003eWhen power VU3 off, Amplifier B channel and Speaker 2 channel will be auto selected and can input and output audio signal normally. And when power VU3 on again, it will auto switch to the channels that are set before.\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\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio input\/output: 2 groups of banana female\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking mode: 2-IN-1-OUT \/ 1-IN-2-OUT\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAmplifier type supported: all kinds of type (BTL \/Class A \/Class AB \/Class B \/ Class D digital amp \/ tube amp etc.)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMax. through power of each channel: 300W (in actual)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBacklight brightness adjustment: 4-level adjustment (can be turn off)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAmplifier no-load protection: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRemote control function: supprt\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSettings saved after shutdown: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking voltage: DC 5V (above 1A)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePower interface: Type-C\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBattery model of remote control: CR2025 3V (may not included)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDiameter of VU meter: 60*35mm\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDimensions(W*D*H): 178*118*68mm \/ 7.01*4.65*2.68in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage dimensions(W*D*H): 280*185*155mm \/ 11.02*7.28*6.10in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNet weight: 980g \/ 2.16lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage weight: 1.2kg \/ 2.65lb\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;\" id=\"pastingspan1\" 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*VU3 VU Meter \u0026amp; Audio Switcher\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1*Remote Control(without battery)\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\"\u003e\u003cspan data-mce-fragment=\"1\"\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":"US","offer_id":47406706295016,"sku":"XX-VU3-US","price":129.99,"currency_code":"USD","in_stock":false},{"title":"UK","offer_id":47406706327784,"sku":"XX-VU3-UK","price":129.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406706360552,"sku":"XX-VU3-DE","price":129.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406706393320,"sku":"XX-VU3-AU","price":129.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406706426088,"sku":"XX-VU3","price":138.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/XX-VU3_3.jpg?v=1650962469"},{"product_id":"douk-audio-vu22-dual-analog-vu-meter-display-db-panel-mic-line-sound-level-meter","title":"Douk Audio VU22 Dual Analog VU Meter Display DB Panel MIC+LINE Sound Level Meter","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cb\u003eWarm Tips\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003eCompatible with most audio devices, but cannot guarantee 100%. If there exists common ground noise, please add an isolation module between VU22 and your device.\u003c\/div\u003e\n\u003cdiv align=\"center\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003eFeatures\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWired and wireless audio inputs: with stereo RCA\/3.5mm AUX audio input and microphone pick up, work well with most audio devices such as phone, computer, CD players, or speakers etc., very suitable for home\/office\/studio to dynamically decorate your auditory feast.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eExcellent sound and free settings: with 100K high-impedance input circuit, ensuring clean sound without any audio rendering when using line inputs. The color and light level of backlight also can be adjusted freely, perfectly match with different styles of audio device and environments.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eAdvanced AGC algorithm and better display: \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAGC ensures ideal visual effects even the input signal is in a small to large range, avoid that no display when input low signal and display in full screen when input high. \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWith gain adjustment even can set the swing range of pointer, easily to control most input signals and achieve better beating effects. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAttractive looking and powerful design: all metal case with CNC machined panel, solid stepless adjustment knob, all interfaces are gold-plated to ensure the tight connection, ensures the smooth transmission of the original audio signal and minimizes the loss of the signal during transmission.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan\u003eWarm tips:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e1. Without power adapter, and VU22 needs to be powered by separate USB power supply, don't use the USB port of computers or share the power supply with audio source, otherwise common ground noise will be caused.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e2. Stereo RCA and 3.5mm AUX input are in parallel, two inputs and outputs will work simultaneously, so please don't connect RCA and 3.5mm AUX input at the same time avoid mixing.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio input: stereo RCA \/ 3.5mm AUX \/ Microphone\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio output: stereo RCA \/ 3.5mm AUX\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eInput impedance: 100K\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eInput voltage: 0.1-2Vrms\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFrequency response: 5Hz-20KHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBrightness color: switchable\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBrightness level: adjustable\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGain adjustment: support \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWorking voltage: DC 5V (≥1A)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePower interface: USB (type-C)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSetup save: support\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eVU meter diameter: 45mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDimensions(W*D*H): 177*115*59mm \/ 6.97*4.53*2.32in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eNet weight: 661g \/ 1.46lb\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 900g \/ 1.98lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e1*VU22 VU Meter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e1*USB Cable (No power adapter)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e4*Rubber Feet\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","brand":"doukaudio","offers":[{"title":"Black \/ US","offer_id":43368472838376,"sku":"XX-VU22-H-US","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ UK","offer_id":47406942159080,"sku":"XX-VU22-H-UK","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ EU","offer_id":47406942191848,"sku":"XX-VU22-H-DE","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ AU","offer_id":47406942224616,"sku":"XX-VU22-H-AU","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ Other","offer_id":47406942257384,"sku":"XX-VU22-H","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Silver \/ US","offer_id":43368472871144,"sku":"XX-VU22-S-US","price":89.99,"currency_code":"USD","in_stock":false},{"title":"Silver \/ UK","offer_id":47406942290152,"sku":"XX-VU22-S-UK","price":89.99,"currency_code":"USD","in_stock":false},{"title":"Silver \/ EU","offer_id":47406942322920,"sku":"XX-VU22-S-DE","price":89.99,"currency_code":"USD","in_stock":false},{"title":"Silver \/ AU","offer_id":47406942355688,"sku":"XX-VU22-S-AU","price":89.99,"currency_code":"USD","in_stock":false},{"title":"Silver \/ Other","offer_id":47406942388456,"sku":"XX-VU22-S","price":89.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/XX-VU22.jpg?v=1660878443"},{"product_id":"douk-audio-c100-mini-digital-audio-player-hi-res-music-streamer-preamp-384k-dsd","title":"Douk Audio C100 PRO Mini Digital Audio player Hi-res Music Streamer Preamp 384K DSD","description":"\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\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\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHigh-quality chip and creative design: digital audio player, adopts ESS9038 decoding chip, achieves 0.0005% ultra-low distortion and 119dB high SNR; CSR8675 Bluetooth chip supporting APTX-HD\/LDAC(24Bit\/96KHz) protocol, achieving high-definition lossless transmission, easy to enjoy the best sound that far exceeds traditional CD players. With retro VU meter, the pointer dancing in the warm light, dynamically decorates the audio system space. \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\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\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWireless\u0026amp;Wired inputs: With Bluetooth 5.0\/Optical\/U-disk\/hard-disk\/SD card inputs, compatible with audio devices such as mobile phones, MP3 players, computers, tablets, etc; Bluetooth input supports displaying lyrics in the screen synchronously; U-disk\/hard drive and SD card input, plug and play, easy to read various digital signals.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMultiple audio outputs and ultra-high sound quality: with S\/PDIF coaxial and optical digital outputs (up to 24bit\/192Khz\/dop64), RCA and balanced XLR outputs. Support 32Bit\/768kHz high bit rate WAV digital audio stream, ISO \/  DFF \/ DSF (up to DSD512) and DTS various music formats, enjoy HIFI music even without wired audio source.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e8 languages and unique display mode: support \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eChinese \/ English \/ French \/ German \/ Japanese \/ Vietnamese \/ Spanish \/ Russian, more convenient to operate; VU meter display supports displaying internal signals or external sounds (with microphone pickup), perfectly matching different usage scenarios.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMini size and user-friendly design: Unlike traditional large body audio players, it is compact and easy to carry and use; with 2.4-inch OLED screen, show all working status clearly and detailedly; design touch button, equipped with remote control, making operation more intuitive and convenient.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\" 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;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1. There are screws on the bottom of C100\/C100 PRO, designed to adjust the sensitivity of VU meter to realize better display effects.\u003cbr data-mce-fragment=\"1\"\u003e2. For safer and faster shipping, 2*AAA batteries inside the remote control are not included, please prepare by yourself.\u003cbr data-mce-fragment=\"1\"\u003e3. Support DTS format, but only can output two channels (front left and front right).\u003cbr data-mce-fragment=\"1\"\u003e4. All outputs will work at the same time and the volume button controls the volume of all outputs synchronously.\u003c\/span\u003e\u003c\/div\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\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMusic files supported and max. Sampling rate support:\u003c\/span\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\" border=\"1\" style=\"border-collapse: collapse; width: 25.4427%; height: 211px;\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 8.69024%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 21.1309%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eC100 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 13.0536%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eC100 PRO \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 8.69024%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDFF \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 21.1309%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSD256 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 13.0536%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSD512 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 8.69024%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eISO \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 21.1309%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSD256 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 13.0536%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSD512 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 8.69024%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSF \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 21.1309%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSD256 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 13.0536%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDSD512 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 8.69024%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWAV \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 21.1309%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e384KHz\/32Bit \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 13.0536%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e768KHz\/32Bit \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 8.69024%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFLAC \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 34.1845%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: 14pt;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times;\"\u003e192KHz\/24Bit\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times;\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 19px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 8.69024%; height: 19px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAPE \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 19px; width: 34.1845%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e48KHz\/16Bit \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 8.69024%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMP3 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 34.1845%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e48KHz\/16Bit \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 10px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 8.69024%; height: 10px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDTS \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 10px; width: 34.1845%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOutput front L\/R channel \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;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\" border=\"1\" style=\"border-collapse: collapse; width: 72.3403%; height: 718px;\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 19px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 19px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 32.94%; height: 19px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eC100\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 39.8753%; height: 19px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eC100 PRO\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 32.94%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSD card \/ U-disk \/ Hard-disk \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 39.8753%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSD card \/ U-disk \/ Hard-disk \/ Bluetooth 5.0 \/ Optical\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 32.94%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eCoaxial \/ Optical \/ Stereo RCA \/ AUX \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 39.8753%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eCoaxial \/ Optical \/ Stereo RCA \/ Balance XLR\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOptical input\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 32.94%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\/\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 39.8753%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003emax. 192KHz \/ 24Bit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFirmware upgrade \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"width: 72.8153%; height: 26px; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003esupport U-disk update \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 19px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 19px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eUSB interface \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 19px; width: 72.8153%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003esupport USB 3.0 and below \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 19px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 19px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSD interface \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 19px; width: 72.8153%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003esupport CLASS10 and above \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eCUE playback \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 72.8153%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003esupport WAV \/ APE \/ FLAC \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSPDIF output \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 72.8153%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003emax. 192KHz 24Bit \/ DOP64 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHard-disk format supported \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 72.8153%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFAT32 \/ exFAT \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax capacity of hard-disk \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 72.8153%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2TB \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax capacity of U-disk\/SD card \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 72.8153%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e512G \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFile system \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 72.8153%; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMulti partition not supported\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOutput level \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 32.94%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2Vrms(Analog)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 39.8753%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2.2Vrms(Max.)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput sensitivity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 32.94%; height: 26px; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e \/\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 39.8753%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e0dBFS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 32.94%; height: 26px; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e \/\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 39.8753%; height: 26px;\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRCA 20Hz-20KHz(±0.3dB）\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBAL 20Hz-20KHz(±0.2dB)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBackground noise\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 32.94%; height: 26px; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\/\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 39.8753%; height: 26px;\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eRCA output -135dBV\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eBAL output -138dBV\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 32.94%; height: 26px; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\/\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 39.8753%; height: 26px;\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eRCA≥118dB\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBAL≥119dB\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 19px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 19px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDistortion\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 32.94%; height: 19px; text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\/\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 39.8753%; height: 19px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e0.0005%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking voltage \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"text-align: center; width: 72.8153%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDC 12V\/ ≥1.5A \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions(W*D*H) \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"height: 26px; text-align: center; width: 32.94%;\"\u003e\n\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e167*105*55mm \/ 6.57*4.13*2.17in\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"text-align: center; width: 39.8753%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e168*106*53mm \/ 6.61*4.17*2.09in\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage dimensions(W*D*H) \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 72.8153%; text-align: center;\"\u003e\n\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e280*210*80mm \/ 11.02*8.27*3.15in\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 72.8153%; text-align: center;\"\u003e\n\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e686g \/ 1.52lb\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\" style=\"height: 26px;\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 24.2543%; height: 26px;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" colspan=\"2\" style=\"height: 26px; width: 72.8153%; text-align: center;\"\u003e\n\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e900g \/ 1.98lb\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \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\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/div\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\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1 × C100\/C100 PRO Digital Player\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1 × DC 12V Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" 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;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1 × Remote Control\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":45668571054312,"sku":"SUC-C100-PRO-US","price":239.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406914797800,"sku":"SUC-C100-PRO-UK","price":239.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406914830568,"sku":"SUC-C100-PRO-DE","price":239.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406914863336,"sku":"SUC-C100-PRO-AU","price":239.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406914896104,"sku":"SUC-C100-PRO","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/SUC-C100PRO_4.jpg?v=1711586919"},{"product_id":"douk-audio-vu102-2-zone-amplifier-speaker-selector-box-with-vu-meter-audio-switcher-w-ir-remote","title":"Douk Audio VU102 2 Zone Amplifier \/ Speaker Selector Box with VU Meter Audio Switcher w\/IR Remote","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFeatures\u003c\/span\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\"\u003eVU102 amplifier \/ speaker selector: two working modes (2-IN-1-OUT \/ 1-IN-2-OUT), with A\/B channel switch button, convenient to compare the sound quality of 2 pair of different speakers or 2PCS power amplifiers without plugging in and out cables repeatedly to avoid wearing the contact point of the sockets.\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\"\u003eEuipped with VU meter and remote control: a 72*32mm large vu meter, can dynamically decorate audio environment and provide incomparably visual effects when enjoy HIFI music. Remote control makes everything convenient, all settings can be quickly adjusted from distance.\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\"\u003ePowerful design and strong compatibility: each channel can pass through up to 200W power and adopt fully isolation design, each channel's GND is independent without mutual interference. Supports to test all kinds of amplifiers such as BTL \/ class A \/ class B \/ class D digital amplifier \/ tube amplifier etc. \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\"\u003eEasy to use and perfect details: powered by USB 5V(type-C), with built-in protection load for amplifiers and speakers. Cool black case, warm VU meter and clear indicators looks vintage and dynamic, can perfectly match with a variety of usage scenarios, very suitable for audiophiles who have different amplifiers or speakers.\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\u003cspan data-mce-fragment=\"1\"\u003eWarm Tips:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1. For safer and faster delivery, the remote control may not include batteries (2*AAA), also without DC 5V power adapter, please prepare by yourself.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2. When in 1-IN-2-OUT mode, A\/B channel (two pairs of speakers) can work at the same time. But in 2-IN-1-OUT mode, not support 2 amplifiers working at the same time otherwise the amplifiers may be damaged.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e3. There will be relatively loud noise when switching A\/B channel, this is normal, no worries.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eParameters\u003c\/span\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\/output: 3 groups of banana female\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking mode: 2-IN-1-OUT \/ 1-IN-2-OUT\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAmplifier type supported: all kinds of type (BTL \/Class A \/Class AB \/Class B \/ Class D digital amp \/ tube amp etc.)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMax. through power of each channel: 200W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAmplifier no-load protection: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRemote control function: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSettings saved after shutdown: support\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking voltage: DC 5V (above 1A)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePower interface: Type-C\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDiameter of VU meter: 73*32mm \/ 2.87*1.26\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDimensions(W*D*H): 149*105*75mm \/ 5.87*4.13*2.95in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage dimensions(W*D*H): 8.27*7.28*3.94in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNet weight: 664g \/ 1.46lb\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\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePacking List\u003c\/span\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*VU102 Selector\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1*Remote Control (without battery)\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\"\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":47408588292328,"sku":"XX-VU102-US","price":99.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47408588325096,"sku":"XX-VU102-UK","price":99.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47408588357864,"sku":"XX-VU102-DE","price":99.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47408588390632,"sku":"XX-VU102-AU","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47408588423400,"sku":"XX-VU102","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/1_3574ef05-d1cf-4f9f-82ae-2ee8355080bb.jpg?v=1676274960"},{"product_id":"douk-audio-t13-phono-preamp-for-mm-turntables-stereo-desktop-headphone-amplifier-w-vu-meter","title":"Douk Audio T13 Phono Preamp for MM Turntables Stereo Desktop Headphone Amplifier w\/VU Meter","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eWarm Tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e1. Without DC 5V power adapter, please prepare it by yourself.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e2. Headphone output with priority, please make sure the headphone has been disconnected if want RCA output.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e3. VU meter displays the level of input source, and adjusting the volume of T13 will not change the VU swing range.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eT13 is a preamp with Stereo RCA and Phono(MM) inputs, compatible with most audio devices such as turntables, phones, computers, CD players, etc. to satisfy different demands. Stereo RCA output greatly improves the sound quality for amplifiers or active speakers, adds a 3.5mm headphone jack to easily drive all 16-300Ω headphones.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eCustomized full-color VU meters, the color and brightness of backlight can be adjusted steplessly and freely; with built-in professional VU meter driver chip makes the pointer dancing more accurately, dynamically decorates the audio system and brings different enjoyment even in limited space.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eBetter display and clean sound: AGC algorithm achieves ideal visual effects and avoids no display when input low signal and displays in full screen when input high; adds built-in 100K high-impedance input and power isolation circuits, no common ground noise even sharing the power with audio players, ensure the purity of sound source.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eExquisite appearance and easy use: all aluminum CNC machined panel and gold-plated RCA terminals with longer service life, and durable adjustment knobs; powered by USB 5V, can be powered by power bank, phone charger, computer etc.,very suitable for home\/office desktop audio system use to get better listening pleasure.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: Stereo RCA \/ Phono MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: Stereo RCA \/ 3.5mm Headphone jack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput level: \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"padding-left: 30px; text-align: left;\"\u003e\u003cspan\u003eRCA: 0.775V RMS\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px; text-align: left;\"\u003e\u003cspan\u003ePhono: 0.005V RMS\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"padding-left: 30px; text-align: left;\"\u003e\n\u003cspan\u003eRCA: 20Hz-20KHz (±0.5dB) \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePhono: Ref to RIAA ±2dB\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eOutput level: \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"padding-left: 30px; text-align: left;\"\u003e\n\u003cspan\u003eRCA: 1.5V RMS\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePhono: 0.6V RMS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eS\/N ratio: \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRCA: ≥106dB\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePhono: ≥80dB\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeadphone output power:\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"padding-left: 30px; text-align: left;\"\u003e\n\u003cspan\u003e 250mW @32Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e100mW @64Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e60mW @128Ω\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eHeadphone impedance range: 16-300Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD: ≤0.1%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVU meter color: multi-color for choice\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBacklight level adjustable: Support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSave set-up: Support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorking voltage: DC 5V(≥0.6A)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions(W*D*): 178*118*55mm \/ 7*4.65*2.17in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage dimensions(W*D*H): 235*180*90mm \/ 9.25*7.09*3.54in\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 730g\/1.61lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 1000g\/2.20lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1×T13 Preamp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1×USB Cable (Type-C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1×Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406973583592,"sku":"XX-T13-US","price":99.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406973616360,"sku":"XX-T13-UK","price":99.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406973649128,"sku":"XX-T13-DE","price":99.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406973681896,"sku":"XX-T13-AU","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406973714664,"sku":"XX-T13","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/XX-T13_4.jpg?v=1685936771"},{"product_id":"vu9-pixie-tube-sound-level-meter-ref-to-retro-nixie-tube-audio-spectrum-w-mic-pickup","title":"VU9 Pixie Tube Sound Level Meter Ref to Retro Nixie Tube Audio Spectrum w\/MIC Pickup","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eIntroduction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eInspired by Nixie tube audio spectrum, Douk Audio VU9 pixie tube sound level meter integrates retro tube design and modern technology. With microphone and line inputs, also support full function adjsutments such as display mode, gain, color, speed, peak color, brightness etc., make your desktop more energetic and dynamic.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFeatures\u003c\/span\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\"\u003eVU9 supports microphone and LINE (3.5mm AUX) inputs, both achieves wireless pickup and accurate display. It matches perfectly with most common audio device such as phone, computer, CD players, or speakers etc., very suitable for home\/office\/studio audio system to dynamically decorate your auditory feast.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\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\n\u003cspan data-mce-fragment=\"1\"\u003eSimulated nixie tubes, VU9 adopts unique LED beads and glass tube to reproduce the sense of retro and mystery. Compared with nixie tubes, VU9 not only can acheive the same effects, but also with lower and safer working voltage (DC 5V), longer service life and much lower price. \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 style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eVU9 with full functions, not only support gain adjustment to achieve better visual effects, but also with 9 display modes, full color, moving speed and brightness adjustment, to match better with different audio device and environments.\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 style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eVU9 is powered by USB 5V, very convenient to use no matter when and where you are. With built-in power-off saving settings, no need to reset parameters even after restarting.\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 style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWarm tips:\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\n\u003cspan data-mce-fragment=\"1\"\u003e1. Please make sure you have installed the tubes in correct direction,\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e or else the tubes will not light up.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2. AUX input is prior, VU9 will auto enter mic pickup mode if the AUX cable is disconnected.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e3. Without DC 5V power adapter, please prepare by yourself. \u003c\/span\u003e\u003c\/div\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\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eParameters\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAudio input: 3.5mm AUX \/ microphone pick up\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePower-off saving settings: support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBrightness setting: support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eRhythm sensitivity setting: support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eColor setting: support full-color\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eLevel meter display mode: two square root signal compression\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWorking voltage: DC 5V ≥1A (Type-C)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDimensions(W*D*H): 85*85*175mm \/ 3.35*3.35*6.89in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNet weight: 250g \/ 0.55lb\u003c\/span\u003e\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\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003ePacking List\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*VU9\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e2*Tube\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1*USB Cable (type-C)\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1*1:2 3.5mm Splitter Cable\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e4*M2 Screw\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*Screwdriver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1 Set*Isolation Stand Feet\u003c\/span\u003e\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\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47406719860968,"sku":"XX-VU9-US","price":69.99,"currency_code":"USD","in_stock":false},{"title":"UK","offer_id":47406719893736,"sku":"XX-VU9-UK","price":69.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406719926504,"sku":"XX-VU9-DE","price":69.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406719959272,"sku":"XX-VU9-AU","price":69.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406719992040,"sku":"XX-VU9","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/XX-VU9-NEW_2.jpg?v=1691716777"},{"product_id":"douk-audio-l3-3-channel-stereo-audio-loop-switcher-with-vu-meter-rca-selector-box","title":"Douk Audio L3 3 Channel Stereo Audio Loop Switcher with VU Meter RCA Selector BOX","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003eWarm Tips\u003c\/div\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003eCompatible with most audio devices, but cannot guarantee 100%. If there exists common ground noise, please add an isolation module between L3 and your device.\u003c\/div\u003e\n\u003cdiv align=\"center\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003eIntroduction\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\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\u003cspan data-mce-fragment=\"1\"\u003eMultifunctional L3 audio switcher is originally designed by Douk Audio Studio, it is not only an audio switcher that can work in 1-IN-3-OUT and 3-IN-1-OUT mode to make contrast among different audio source, amplifier or active speakers etc.; but also a loop switcher that can add up to 3 audio effectors to create multi-layered musical effects and enhance the richness and dynamism of music to bring more creative space and fun.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv 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;\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e3 channel audio loop switcher with bypass: L3 can add up to 3 preamps\/equalizers\/effectors to create multi-layered musical effects and enhance the richness and dynamism of music whether in daily listening or studio recording, brings more fun and creative space. Also support one button bypass to enjoy the orginal sound and compare the overlay effects of different loops.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\"\u003e3-way stereo audio switcher: 2 working modes, suitable for debugging equipment and do contrasts among different devices (3-IN-1-OUT for comparing audio source, preamp, equalizer etc.; 1-IN-3-OUT for amplifiers and active speakers.), specially designed for audiophiles who have several audio sources and outputs.\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\"\u003eCustomized VU meter and remote control: with dual large and full-color VU meters (45mm), the backlight color and brightness can be adjusted freely; driven by a dedicated VU driver chip to show the level of audio signal dynamically and accurately in real-time;  remote control design, convenient to adjust all settings from the distance.\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\"\u003eAdvancd circuits and high-quality sound: with built-in power isolation circuit, no common ground noise will be generated even sharing the same power with audio players; adopts100K high-impedance input circuit, when inputting linear audio, L3 has little impact on the sound source to ensure its the purity.\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\"\u003eAttractive looking and powerful design: all metal case and CNC machined panel with good shielding performance to avoid interference; stepless adjustment knob, all I\/O interfaces are gold-plated to ensure the smooth transmission of the original audio signal to minimizes the loss of the signal. Powered by DC 5V, easy to carry and convenient to use at anytime and anywhere.\u003c\/span\u003e\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\u003cspan data-mce-fragment=\"1\"\u003eWarm tips:\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\n\u003cspan data-mce-fragment=\"1\"\u003e1. The series connection button is only available in loop mode. In this mode, the audio signal from IN interface can be arbitrarily passed through one channel (Chanel 1\/2\/3) or two channels (Channel 1+2\/1+3\/2+3) or three channels (Channel 1+2+3 ) and then to OUT interface.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2. Not support guitar recording or singing directly, you need to add a preamp to convert the guitar and mic signal to LINE OUT before connecting to L3.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e3. In 3-IN-1-OUT or 1-IN-3-OUT mode, only one channel can input and output at one time, the 3 channels of IN or OUT cannot work at the same time.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e4. In bypass mode, the audio signal will pass through from IN to OUT directly, not pass through channel 1\/2\/3.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e5. For safer and faster delivery, without DC 5V power adapter and no batteries (2*AAA) inside the remote control, please prepare by yourself.\u003c\/span\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\u003cspan data-mce-fragment=\"1\"\u003eParameters\u003c\/span\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\"\u003eBrand: Douk Audio\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\"\u003eModel: L3\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 input: Stereo RCA*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\"\u003eAudio output: Stereo RCA*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\"\u003eLoop interface: 3 groups\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\"\u003eWork Mode: 1-IN-3-OUT\/ 3-IN-1-OUT\/ 3 channel Loop\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 level: 0.775V RMS\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\"\u003eInput impedance: 100K\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eFrequency response: 20Hz-20KHz (±0.5dB)\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\"\u003eVU meter color: multi-color\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\"\u003eDiameter of VU meter: 45mm\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\"\u003eBacklight brightness level: adjustable (10-level)\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\"\u003eRemote function: supported\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\"\u003eSettings save: supported\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: DC 5V(\u0026gt;=0.6A)\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 interface: USB (type-C)\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): 178*118*55mm \/ 7.00*4.65*2.17in\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\"\u003ePackage dimensions(W*D*H): 235*180*90mm  \/ 9.25*7.09*3.54in\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: 720g \/ 1.59lb\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: 900g \/ 1.98lb\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\u003cspan data-mce-fragment=\"1\"\u003ePacking List\u003c\/span\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*L3 Loop Switcher\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\n\u003cspan data-mce-fragment=\"1\"\u003e1*Remote Control (without 2*AAA battery)\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*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*User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47408596713704,"sku":"XX-L3-US","price":109.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47408596746472,"sku":"XX-L3-UK","price":109.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47408596779240,"sku":"XX-L3-DE","price":109.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47408596812008,"sku":"XX-L3-AU","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47408596844776,"sku":"XX-L3","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_efd354ae-3729-4730-9f31-f3ff2021371c.jpg?v=1687913424"},{"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-eq5-tone-mini-5-band-eq-equalizer-with-bluetooth-receiver-stereo-audio-preamp-w-vu-meter","title":"Douk Audio EQ5-TONE Mini 5-Band EQ Equalizer with Bluetooth Receiver Stereo Audio Preamp w\/VU Meter","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWarm Tips\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1.Without a power adapter, EQ5-TONE needs to be powered by separate USB power supply. Don't use the USB port of computers or share the power supply with audio source, otherwise common ground noise will be caused.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2.Stereo RCA and 3.5mm AUX input are in parallel, two inputs and outputs will work simultaneously, So to avoid signal mixing, please don't connect RCA and 3.5mm AUX input at the same time.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e3.EQ5-TONE can input and output audio signal without power supply in bypass mode. However, if the signal hasn’t been preamplified, the VU meters will not function.\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\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e5-band EQ equalizer and preamp: separate and rich frequency band controls (75Hz\/400Hz\/ 800Hz\/4KHz\/10KHz), each band is processed by one op amp independently. EQ5-TONE can compensate for the defects of speakers and sound field by adjusting 5-band high, middle and low \u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003efrequencies, and modify various sound sources.\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;\"\u003eAdjustable VU meter and Bluetooth input: Dual large VU meter (45mm), driven by a dedicated VU driver chip, supporting the adjustment of background light, pointer speed and Gain, dynamically decorates audio environment and provides incomparable visual effects. Add Bluetooth 5.0 input, convenient for you to enjoy HIFI music via wireless connection.\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;\"\u003eBypass design and balance adjustment: with bypass mode to turn off EQ preamplification, the audio signal will output from IN to OUT directly without any processing, convenient for enjoying original sound. Also with a balance control to compensate for the left and right channel of all outputs and prevent the sound field positioning from deviating from the center position. \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 looking and powerful design: all metal case and aluminum knurled knob with good shielding performance, all I\/O interfaces are gold-plated to ensure the smooth transmission of the original audio signal to minimize the loss of the signal. Mini size and powered by DC 5V, easy to carry and convenient to use in most scenarios.\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: Douk Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel: EQ5-TONE\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: Bluetooth \/ Stereo RCA \/ 3.5mm AUX \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: Stereo RCA \/ 3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eEQ Bands:75Hz \/ 400Hz \/ 800Hz \/ 4KHz \/10KHz  \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBypass function: support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBalance adjustment of L\/R channel: support  \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput impedance: 50KΩ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOutput impedance: 15Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 5Hz-20KHz   \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD: 0.003%@1 KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking voltage: DC 5V (≥500mA)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePower interface: USB (type-C)  \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDiameter of VU meter: 45mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimensions(W*D*H): 164*108*82mm \/ 6.46*4.25*3.23in\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): 210*l85*100mm\/8.27*7.28*3.94in  \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight:730g \/1.61lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight:1.0kg\/2.20lb\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;\"\u003ePacking List\u003c\/span\u003e\n\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*EQ5-TONE Equalizer  \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*USB cable (type-C)   \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\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*Screwdriver\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47411219267816,"sku":"XX-EQ5-TONE-US","price":89.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47411219300584,"sku":"XX-EQ5-TONE-UK","price":89.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47411219333352,"sku":"XX-EQ5-TONE-DE","price":89.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47411219366120,"sku":"XX-EQ5-TONE-AU","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47411219398888,"sku":"XX-EQ5-TONE","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/XX-EQ5-TONE_1.jpg?v=1721379857"},{"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-vu3pro-amplifier-speaker-selector-vu-meter-2-in-2-out-switcher-box","title":"Douk Audio VU3PRO Amplifier\/Speaker Selector VU Meter 2-IN-2-OUT Switcher Box","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eNote: Only the yellow VU meter version is available currently, the blue version is coming soon.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan\u003eFeatures\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eVU3 Pro Amplifier\/Speaker Selector: The fully upgraded version of VU3, with great improvements in size, functions and performance. 2-IN-2-OUT (Two groups of speaker jacks support output at the same time), flexible to switch and make a comparison between 2 amplifiers and 2 pairs of speakers, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eMax. 350W Power Transmission and Super Compatibility: With the growing popularity of high-power amplifiers, the power requirements for switchers have also increased. With a maximum pass-through of 350W, the VU3Pro supports various types of high-power digital and tube amplifiers (BTL, Class A, Class B, Class AB, Class D, etc.), including 300W TPA3255 amps and floorstanding speakers.  \u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eCustom-made Large and High-playability VU Meters: The VU3Pro features dual large VU meters and a bigger chassis, perfectly compatible with more audio devices in size. It offers 35 backlight colors and 5 brightness levels to suit various scenarios. Additionally, it supports 20 levels of gain and 30 levels of sensitivity adjustments, ensuring perfect alignment with different audio signals and allowing you to enjoy the vibrant audio-visual feast. \u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eWired\/Wireless Inputs and Easy to Use: VU3Pro adds mic pickup, just put it near your audio system, clear indicators in two warm and vintage VU meters will strikingly show every beat of music and dynamically activate your audio feast. With a button and remote control, effortlessly switch most settings at your fingertips and simplify the process of A\/B comparison, and all settings will be saved after shutdown.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003ePremium Components for the Purest Sound Quality: VU3Pro integrates AC 250V 5A large current relay, isolated and high precision HL current sensor, built-in high-power load resistors to protect class A tube amplifier from damage when no load, solid CNC aluminium alloy panel and metal chassis, large pure copper speaker jacks etc., ensures virtually no impact or loss in sound quality and allows you to enjoy the purest high-fidelity sound.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eWarm tips\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1. Two groups of Speaker 1 and Speaker 2 can output at the same time.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2.  The VU meters won't work normally if the speakers output of VU3Pro isn't connected to the speakers. If you only want the VU meters function, please choose MIC input.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e3. Don't connect VU3PRO to amplifiers whose actual output power is greater than 350W, otherwise the VU meters may be damaged.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e4. For safer and faster delivery, the remote control may not include batteries (AAA*2), please prepare it yourself.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eComparision between VU3 and VU3Pro\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable style=\"margin-left: 0px; margin-right: auto; width: 100.062%;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003eItem\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003eVU3Pro\u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003eVU3\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003eSize of VU Meter\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003e85*45mm\/3.35*1.77in\u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003e60*35mm\/2.36*1.38in\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003eDimensions of Chassis\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003e268*155*75mm\/10.55*6.10*2.95in \u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003e178*118*68mm\/7.01*4.65*2.68in \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003eMIC Input\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003eSupport\u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003e×\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003e\u003cspan\u003eSimultaneous Output\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003eSupport\u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003e×\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003e\u003cspan\u003eSeparate Gain Adjustment\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003e20-level\u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003e×\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003e\u003cspan\u003eSeparate Sensitivity Adjustment\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003e30-level\u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003e×\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003e\u003cspan\u003eBacklight Color Adjustment\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003e35 kinds\u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003e×\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003e\u003cspan\u003eBacklight Brightness Adjustment \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003e5-level\u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003e4-level\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003e\u003cspan\u003eMax. Pass-through Power\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003e350W\u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003e300W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 58.5992%;\"\u003e\u003cspan\u003eUSB 5V Power Adapter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 1.81818%;\"\u003eIncluded\u003c\/td\u003e\n\u003ctd style=\"width: 38.9316%;\"\u003e\u003cspan\u003e×\u003c\/span\u003e\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\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: VU3Pro\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDiameter of VU meter: 85*45mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio input\/output: 2 groups of banana female\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWorking mode: 2-IN-2-OUT\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMax. through power of each channel supported (in acutal):\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003e350W@4Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003e200W@2Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan\u003eAmplifier type supported: all kinds of types (BTL\/Class A\/Class B\/Class D digital amp\/tube amp)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAmplifier no-load protection: support\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFrequency response: 30Hz-20kHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBacklight color: 35 kinds of color selection or automatic change\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBacklight brightness: 5 levels (Off-30%-50%-80%-100%)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eGAIN: 20 levels\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSensitivity: 30 levels\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMIC pick-up: support\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRemote control: support\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSettings saved after shutdown: support\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWorking voltage: DC 5V ≥2A\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePower interface: Type-C\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDimensions (W*D*H): 268*155*75mm \/ 10.55*6.10*2.95in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage dimensions (W*D*H): 380*220*95mm \/ 14.96*8.66*3.74in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eNet weight: 1.61kg \/ 3.55lb\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage weight: 2.00kg \/ 4.41lb\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\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*VU3Pro\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1*Power Adapter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1*Remote Control (without battery)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1*USB Cable(type-c)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"Yellow \/ US","offer_id":46655169954024,"sku":"XX-VU3-PRO-L-US","price":154.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ UK","offer_id":47406396571880,"sku":"XX-VU3-PRO-L-UK","price":154.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ EU","offer_id":47406396604648,"sku":"XX-VU3-PRO-L-DE","price":154.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ AU","offer_id":47406396637416,"sku":"XX-VU3-PRO-L-AU","price":154.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ Other","offer_id":47406396670184,"sku":"XX-VU3-PRO-L","price":154.99,"currency_code":"USD","in_stock":true},{"title":"Blue \/ US","offer_id":46655169986792,"sku":"XX-VU3-PRO-B-US","price":149.99,"currency_code":"USD","in_stock":false},{"title":"Blue \/ UK","offer_id":47406396702952,"sku":"XX-VU3-PRO-B-UK","price":149.99,"currency_code":"USD","in_stock":false},{"title":"Blue \/ EU","offer_id":47406396735720,"sku":"XX-VU3-PRO-B-DE","price":149.99,"currency_code":"USD","in_stock":false},{"title":"Blue \/ AU","offer_id":47406396768488,"sku":"XX-VU3-PRO-B-AU","price":149.99,"currency_code":"USD","in_stock":false},{"title":"Blue \/ Other","offer_id":47406396801256,"sku":"XX-VU3-PRO-B","price":159.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/XX-VU3PRO_1.jpg?v=1724806976"},{"product_id":"douk-audio-p1plus-bluetooth-tube-preamp-usb-dac-headphone-amp-w-vu-meter-dsd256","title":"Douk Audio P1 PLUS Bluetooth Tube Preamp USB DAC Headphone Amp w\/VU Meter 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;\"\u003ePerfect Blend of Vintage and Modern: The P1PLUS boldly reimagines the appearance of HIFI audio equipment. It integrates customized pluggable VU meters, retro military-grade vacuum tubes and a crystal-clear OLED screen. Not only add warmth to the sound but also vividly show the dynamic changes in the audio signal. Allowing you immerse yourself in a vibrant audio-visual feast as you delve into the HiFi world.\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;\"\u003eLuxurious Chipset Unleashes Peak Performance: QCC5125 Bluetooth chip supports APTX-HD and LDAC, achieving the highest 24Bit\/96Khz transmission. The SA9137L USB chip and ESS9018K2M DAC chip handle PCM data up to 384KHz\/32Bit and DSD256. The TPA6120 amp chip effortlessly powers headphones ranging from 16Ω to 600Ω. Besides OPA1656, 2PCS pluggable NE5532 op amps allow you to tailor your sound by swapping with various dual op-amps.\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;\"\u003eAuthentic tube amplification and sound: the P1PLUS preamp circuit elevates the voltage to 100V, ensuring that the vacuum tubes operate at their full potential and delivering a warm and rich experience. The unique technology faithfully reproduces crisp high tones, lush midrange richness, and deep, rhythmic bass. Pluggable socket design allows for tube rolling and sound-shaping to customize your own 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;\"\u003eVersatile audio inputs and outputs: the P1PLUS provides Bluetooth\/ USB\/ coaxial\/ optical\/ stereo RCA\/ 3.5mm AUX inputs, and optical\/ stereo RCA\/ 3.5mm AUX\/ 3.5mm headphone jack outputs, perfect for fulfilling all your home audio needs, also easy to create 2.1 or multi-channel audio systems by connecting active speakers, amplifiers, or subwoofers. Multiple devices can be connected and switched at one time to minimize cable-plugging hassles. \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;\"\u003eEnhanced details elevate the P1PLUS to perfection: it features tone knobs allowing for precise tuning of bass and treble; with remote control to adjust all settings at your fingertips; and a Bluetooth reset button on the remote to prevent accidental connections; color-variable VU meter complements various listening spaces; the sleek aluminum-alloy CNC-molded body seamlessly blends retro charm with modern design.\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 \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1. All analog audio outputs will work at the same time no matter what audio input is selected. While the optical output will only work when PC-USB inputs.  \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e2. Only USB input supports PCM 384Khz\/32bit DSD256, coaxial and optical inputs only support PCM 192KHz\/24Bit at the highest.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e3. For win7, PC-USB only can be recognized when the driver is installed. For other systems, the driver is only required when playing DSD files.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e4. P1PLUS default comes with JAN5654 tubes, can be replaced by 6J1, 6K4, 6J5, GE5654W, 6*1N, 6*2N, 6J5,6A2, etc. \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;\"\u003e5. The volume \/ treble \/ bass of the three outputs (stereo RCA \/ 3.5mm AUX output and 3.5mm headphone jack) are controlled simultaneously.  \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;\"\u003eParameters\u003c\/span\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;\"\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: P1 PLUS\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 \/ USB \/ Coaxial \/ Optical \/ 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: Optical \/ Stereo RCA \/ 3.5mm AUX \/ 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;\"\u003eChipset: QCC5125+SA9137L+ES9018K2M+TPA6120+OPA1656+NE5532 (2PCS pluggable)\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. Sampling rate USB supported: PCM 384KHz\/32Bit \/ DSD256\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. Sampling rate Coaxial\/Optical supported: PCM 192KHz\/24Bit\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;\"\u003eOperation systems PC-USB supported: W7\/W8\/W10\/W11\/MAC\/Linux\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: 5.1 (support AAC\/SBC\/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;\"\u003eFrequency response: 20Hz-20kHz(±1.8dB)\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: 0.1%\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;\"\u003eSNR: ≥106dB\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: 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;\"\u003eOutput level: 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;\"\u003eMatched impedance of headphones: 16-600Ω\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 power of headphone jack: 750mW\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 12V (≥1.5A)\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: 906g \/ 2.0lb\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: 1.60kg \/ 3.53lb\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): 224*86*95mm\/8.82*3.39*3.74in \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): 288*195*100mm \/ 11.34*7.68*3.94in\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\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 × P1PLUS\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 12V 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;\"\u003e2 × JAN5654 Tube\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 × VU Meter\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 batteries)\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 × USB 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 × 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 × User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47406444904680,"sku":"SUC-P1-PLUS-US","price":189.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406444937448,"sku":"SUC-P1-PLUS-UK","price":189.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406444970216,"sku":"SUC-P1-PLUS-DE","price":189.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406445002984,"sku":"SUC-P1-PLUS-AU","price":189.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406445035752,"sku":"SUC-P1-PLUS","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/White-01.jpg?v=1727249229"},{"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-tube-t5c-mini-stereo-tube-preamp-4-way-audio-selector-splitter-headphone-amp-w-vu-meter","title":"Douk Audio TUBE-T5C Mini Stereo Tube Preamp 4-Way Audio Selector Splitter Headphone Amp w\/ VU Meter","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eOptimized Tube Amplification: \u003c\/span\u003e\u003cspan\u003ePowered by an isolated power section with metal shielding, effectively reducing interference for a cleaner and more stable audio signal. The tube operates at a boosted 180V, maximizing its performance for a rich, dynamic sound.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e4-Way Audio Selector \u0026amp; Splitter: \u003c\/span\u003e\u003cspan\u003eSupports up to 4 RCA inputs, allowing easy connection to CD players, DACs, streamers, and Blu-ray players etc. The input switch enables seamless comparison between multiple devices without constant replugging. Dual outputs support simultaneous output, allowing connection to two amplifiers or two active speaker sets.  \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eVintage VU Meter and Built-in Tube: \u003c\/span\u003e\u003cspan\u003eThe elegant VU meter, paired with a glowing tube, brings a timeless vintage aesthetic. The adjustable internal RGB lighting further enhances the ambiance. Whether in a studio or a cozy listening space, it creates an immersive experience.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eHeadphone Output \u0026amp; Tone Control: \u003c\/span\u003e\u003cspan\u003eWith an integrated headphone jack, it delivers up to 500mW at 32Ω, ensuring ample drive for a wide range of headphones. Additionally, the adjustable bass and treble controls allow for precise tonal shaping, letting you customize the sound to match different headphones and audio setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eEasy Op-amp and Tube Upgrades: \u003c\/span\u003e\u003cspan\u003eDesigned for effortless customization, the pluggable sockets allow users to easily swap out op-amps and tubes for enhanced flexibility. Upgrade to higher-end components to refine the sound quality and elevate your listening experience.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\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\u003eWarm tips\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\u003cspan\u003e1. All outputs work at the same time. The volume\/treble\/bass are controlled simultaneously.  \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e2. If the VU meter needle isn't moving noticeably, please turn up the bass and the master volume.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e3. 10-second warm-up required; audio delayed during tube activation.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e4. \u003c\/span\u003e\u003cspan\u003eThe TUBE-T5C with 1PC pluggable NE5532 op-amp, can be upgraded by dual op-amps like 2134\/2604\/5532\/2068\/muse02.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e5. Default one ECC83 tube, can be directly replaced by PSVANE 12AX7-S and Shuguang 12AX7B \/ 7025 \/ 12AX7 etc.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e6. High voltage inside, please turn the TUBE-T5C off first before replacing the op-amp and the tube, and avoid dropping anything inside.\u003c\/span\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\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv 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: TUBE-T5C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: 4 groups of RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: 2 groups of RCA \/ 3.5mm headphone jack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput sensitivity: 0.775V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRated output level: 2V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 20Hz-20KHz (±0.8dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD+N: 0.06%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: ≥107dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBass\/treble range: ±6dB\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\u003eWorking voltage: DC 12V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 152*92*85mm \/ 5.98*3.62*3.35in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 285*155*110mm \/ 11.22*6.10*4.33in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 827g \/ 1.82lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 1.10kg \/ 2.42lb\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\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* TUBE-T5C Preamp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* DC 12V Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1* Hexagonal Wrench\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47406467383528,"sku":"SUC-TUBE-T5C-US","price":109.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406467416296,"sku":"SUC-TUBE-T5C-UK","price":109.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406467449064,"sku":"SUC-TUBE-T5C-DE","price":109.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406467481832,"sku":"SUC-TUBE-T5C-AU","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406467514600,"sku":"SUC-TUBE-T5C","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/b8230117d6358065dd6cc75f562bea3d.jpg?v=1747795184"},{"product_id":"douk-audio-4-way-audio-switcher-splitter-5-band-stereo-eq-preamp","title":"Douk Audio D5 4-Way Audio Switcher\/Splitter with EQ Preamp","description":"\u003cdiv\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e1-IN-4-OUT Flexible Splitter: Easily connect up to four amplifiers or active speakers etc. Choose any combination of outputs to work simultaneously, allowing for effortless comparisons or multi-device listening\u003c\/span\u003e\u003cspan\u003e, offering unmatched flexibility for your home audio setup.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e4-IN-1-OUT Audio Switcher: \u003c\/span\u003e\u003cspan\u003eEasily switch between four different audio sources such as phones, tablets or players. Say goodbye to constant plugging and unplugging, and quickly compare multiple sources. Ideal for anyone needing seamless switching.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-end=\"359\" data-start=\"66\"\u003e\n\u003cp data-end=\"359\" data-start=\"69\"\u003e\u003cspan\u003e5-Band Equalizer with EQ Bypass: Fine-tune your sound with precise frequency adjustments at 80Hz, 330Hz, 1KHz, 3.3KHz, and 10KHz. Or switch to EQ Bypass mode for a direct, unaltered signal to your speakers or headphones, giving you full control over your sound. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRetro-Style VU Meter: Features a large analog VU meter with 6-level backlight and gain adjustment, providing real-time visual feedback of the music's dynamics. Housed in a compact metal enclosure, it combines vintage charm with long-lasting durability.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-end=\"359\" data-start=\"66\"\u003e\u003cspan\u003eHeadphone Amplifier for Personal Listening: The D5 also doubles as a headphone amplifier, offering decent performance for personal listening. Enjoy rich, detailed audio for your headphones, enhancing every note with precision and clarity.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cstrong data-end=\"75\" data-start=\"26\"\u003eQ: Does the D5 come with a power supply?\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong data-end=\"84\" data-start=\"78\"\u003eA:\u003c\/strong\u003e\u003cspan\u003e Yes. Please use the supplied DC 5V\/2A power adapter for optimal performance. If using \u003c\/span\u003e\u003cspan\u003eother\u003c\/span\u003e\u003cspan\u003e power supply, ensure it provides at least 2A current. Otherwise, the D5 may not function properly.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp data-end=\"473\" data-start=\"282\"\u003e\u003cstrong data-end=\"354\" data-start=\"282\"\u003eQ: Can all four channels output simultaneously in \"1-IN-4-OUT\" mode?\u003c\/strong\u003e\u003cbr data-end=\"357\" data-start=\"354\"\u003e\u003cstrong data-end=\"363\" data-start=\"357\"\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, in \"1-IN-4-OUT\" mode, all four channels can output simultaneously, with D5 acting as an audio splitter.\u003c\/p\u003e\n\u003cp data-end=\"666\" data-start=\"480\"\u003e\u003cstrong data-end=\"511\" data-start=\"480\"\u003eQ: Can I use D5 as a 4-IN-1-OUT mixer?\u003c\/strong\u003e\u003cbr data-end=\"514\" data-start=\"511\"\u003e\u003cstrong data-end=\"520\" data-start=\"514\"\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eD5 does not support individual volume control for each channel, so it is not recommended as a mixer. However, it works effectively as a switcher.\u003c\/p\u003e\n\u003cp data-end=\"885\" data-start=\"673\"\u003e\u003cstrong data-end=\"728\" data-start=\"673\"\u003eQ: Why is there no sound when the RCA I\/O port is connected?\u003c\/strong\u003e\u003cbr data-end=\"731\" data-start=\"728\"\u003e\u003cstrong data-end=\"737\" data-start=\"731\"\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 3.5mm Priority jack takes priority over the RCA I\/O port. To use the RCA I\/O port, please ensure the Priority jack is not connected.  \u003c\/p\u003e\n\u003cp data-end=\"1104\" data-start=\"892\"\u003e\u003cstrong data-end=\"930\" data-start=\"892\"\u003eQ: There is noise during operation. What should I do?\u003c\/strong\u003e\u003cbr data-end=\"933\" data-start=\"930\"\u003e\u003cstrong data-end=\"939\" data-start=\"933\"\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf noticeable noise occurs, please try toggling the GND switch on the rear panel. Switching it on or off can resolve most ground loop issues, but we cannot guarantee 100%.\u003c\/p\u003e\n\u003cp data-end=\"1304\" data-start=\"1111\"\u003e\u003cstrong data-end=\"1164\" data-start=\"1111\"\u003eQ: Is volume control available in EQ bypass mode?\u003c\/strong\u003e\u003cbr data-end=\"1167\" data-start=\"1164\"\u003e\u003cstrong data-end=\"1173\" data-start=\"1167\"\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, volume control remains available in EQ bypass mode.\u003c\/p\u003e\n\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: Nobsound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: D5\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: 3 groups of RCA \/ 1*3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: 3 groups of RCA \/ 1*3.5mm Jack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorking mode: 1-IN-4-OUT \/ 4-IN-1-OUT\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4-Channel simultaneous output: Support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency adjustment: 80Hz\/330Hz\/1KHz\/3.3KHz\/10KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEQ adjustment range: ±10dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEQ bypass mode: Support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput impedance: 50KΩ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOutput impedance: 10Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 20Hz-20KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMatched headphone impedance: 32-200Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeadphone output power: 150mW@32Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVU meter backlight brightness adjustment: 6 levels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVU meter swing range adjustment: Support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorking voltage: DC 5V\/≥2A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H):  130*80*104mm \/ 5.12*3.15*4.09in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 210*185*100mm \/ 8.27*7.28*3.94in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 685g \/ 1.51lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 1.0kg \/ 2.20lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003ePacking list\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1* D5 Audio Selector\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e1* DC 5V Power Adapter\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Type-C Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Screwdriver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47544764956904,"sku":"XX-D5-US","price":109.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47544764989672,"sku":"XX-D5-UK","price":109.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47544765022440,"sku":"XX-D5-DE","price":109.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47544765055208,"sku":"XX-D5-AU","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47544765087976,"sku":"XX-D5","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/000_9c3c3306-8756-46a7-b69a-f0626ce49740.jpg?v=1753953920"},{"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"},{"product_id":"ampapa-d1-hifi-bluetooth-amplifier-with-digital-vu-meters-hpf","title":"Ampapa D1 HIFI TPA3255 Amplifier with Digital VU Meter","description":"\u003cdiv\u003e\n\u003cspan\u003eFeatures\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAmpapa × Douk Audio Collaboration: Built on the acclaimed Douk Audio A5 amp, the D1 retains core features like TPA3255 chip, HPF, PRE-OUT, socketed op-amps—now upgraded with digital VU display, TRS balanced input, Bluetooth 5.2, treble\/bass control, remote and more for next-gen HiFi performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDigital VU Meters with Retro Soul: D1 features a vibrant OLED screen that merges classic aesthetics with modern utility. Enjoy 7 VU styles in classic yellow, blue, or black and view real-time feedback of all operations and playback. Both stylish and functional, it brings your music to life.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEngineered for True 2.1 Systems: The adjustable 30–200Hz high-pass filter removes low frequencies from the main output, letting your stereo speakers focus on mids and highs with better clarity, while PRE-OUT offers full-range signal to active subwoofers, amplifiers, or active speakers.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePremium Components for Superior Fidelity: Pluggable NE5532 op-amps allow for effortless upgrades through the top glass panel for long-term flexibility. From NJW1194 chip, SAGAMI inductors, 2oz copper PCB to GaN 48V\/5A power adapter, every element is chosen for sonic purity. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEngineered for Everyday Convenience: With a 12V trigger, infrared remote, one-touch mute and Bluetooth reset, D1 simplifies your daily audio setup. Fine-tune your sound with ±10dB tone control, while internal RGB lighting adds a refined, modern glow. Enjoy seamless operation from start to finish.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eQ: Can I replace the op-amps in the D1？\u003cbr\u003eA:Yes, the D1 uses 2PCs pluggable NE5532 op-amps,which can be replaced by normal dual op-amps like 2604\/2134\/muses02 etc. Before replacing, please turn off the power, ensure correct orientation, and power ononly after confirming proper installation.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eQ: Why don't the single VU meter and spectrum display work properly?\u003cbr\u003eA: In dual VU meter mode, both meters show the audio levels for the left and right channels separately.In single VU meter and spectrum modes, the D1 only detects the left channel input. If only the right channel is connected, the VU meter and spectrum display will not operate.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eQ: Does the high-pass filter affect the Pre-Out signal?\u003cbr\u003eA:No,the high-passfilteronly applies to the speaker output. The Pre-Out delivers a full-range signal.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eQ: Are the Pre-Out's volume and tone controls synchronized with the speaker output?\u003cbr\u003eA: Yes.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eQ: Is it normal for the D1 to become hot during operation?\u003cbr\u003eA: The D1's TPA3255 amp chip dissipates heat through contact with the chassis. It is normal for the chassis to heat up during operation. This does not affect performance or lifespan of the D1. Please place the D1 in a well-ventilated area,and avoid stacking devices or blocking ventilation.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eQ: What should I use the 12V trigger input for?\u003cbr\u003eA: The 12V trigger input is designed for use with preamps or DACs that have a trigger output to achieve synchronous power on and off. Please do not use this port as an audio input or connect it to a power supply, as this could damage the D1.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eQ: What is the required power supply for the D1?\u003cbr\u003eA:The D1 requires a DC 24-48V (≥4A) input voltage. Please use the supplied power adapter for optimal performance. lf using a third-party power supply,ensure it meets the required voltage and current specifications.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eQ: Why doesn't the remote control include batteries?\u003cbr\u003eA:For safer and faster delivery, the remote control may not include batteries (AAA*2). Please prepare them yourself.\u003c\/span\u003e\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: Ampapa\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: D1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: RCA\/TRS\/Bluetooth 5.2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: Banana speaker jacks \/ Pre-Out\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\u003eTHD+N: 0.002%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: ≥114dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 20Hz-20KHz (±0.4dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-pass filter frequency range: 30Hz-200Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-pass fiter roll-off: 12dB per octave\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBluetooth chip: QCC304X\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBluetooth supported codecs: SBC\/AAC\/aptX\/aptX-HD\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput sensitivity: RCA: 2V  TRS: 4V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePre-out rated output level: 3.5V\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\u003eInput voltage: DC 24-48V\/ ≥4A (5.5*2.5mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 155*124*42mm \/ 6.10*4.88*1.65in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 268*192*95mm \/ 10.55*7.56*3.74in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 742g \/ 1.64lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage weight: 1.73kg \/ 3.81lb\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003ePower Output Table of the D1\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\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\u003eOutput Power\u003c\/span\u003e\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\u003e\u003cspan\u003e4Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120W+120W\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\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\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003ePacking List\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1* D1 Amp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* DC 48V5A GaN Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Remote Control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Bluetooth Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Cleaning Cloth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Certificate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e1* Warranty\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47672444551400,"sku":"SUC-D1-US","price":199.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47672444584168,"sku":"SUC-D1-UK","price":199.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47672444616936,"sku":"SUC-D1-DE","price":199.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47672444649704,"sku":"SUC-D1-AU","price":199.99,"currency_code":"USD","in_stock":true},{"title":"China","offer_id":47672444682472,"sku":"SUC-D1","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_89339c36-f90f-499f-90b7-0be0d92e6ffc.jpg?v=1757470299"},{"product_id":"douk-audio-vu360-retro-analog-vu-meter-music-spectrum-for-home-office-gift","title":"Douk Audio VU360 Special Analog VU Meter Music Spectrum Visualizer","description":"\u003cdiv\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eExclusive Analog VU Meter: Featuring an oversized visual display with unique dual-needle, the VU360 is expertly crafted to offer exceptional clarity and vivid detail. Blending retro charm with modern tech, it adds a captivating focal point to any desk or living space.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDual Inputs for Ultimate Convenience: Provides both a sensitive built-in microphone for wire-free convenience and line input for a direct connection to your audio source. Works flexibly in any scenario, instantly transforming game audio, music, and movies into a dynamic show. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRich Colors to Match Your Setup: The Yellow version offers 4 color families (red, orange, yellow, green), each with 5 colors, and the White version has broader 7 color families (red, orange, yellow, green, cyan, blue, purple), each with 2-3 colors. Choose the perfect match for your style and ambiance.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePrecision Control for Perfect Sync: Fine-tune your visual experience with intuitive controls. Effortlessly adjust color, brightness, gain, and sensitivity, creating the ideal atmosphere for your audio, from quiet ambient tracks to explosive gaming soundscapes.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRefined Gift for Every Occasion: Housed in a sturdy metal casing for a premium feel, the VU360 comes in an exquisite gift box, making it an ideal present for music enthusiasts, gamers, or lovers of stylish, retro-inspired decor. Perfect for Birthdays, Christmas, Valentine's Day, and more.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eQ: What's the difference between the two versions of the VU360?\u003cbr\u003eA: Please note: The VU360 is a visualizer, not a speaker, and does not play music. The yellow version supports 4 color families, each offering 5 adjustable color variations. The white version covers 7 color families with 2 to 3 color variations available for each.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eQ: What kind of power supply should I prepare?\u003cbr\u003eA: Please use a DC 5V power supply with at least 1A output. Higher voltage may cause damage, while insufficient current may affect performance.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eQ: Can I track my sensitivity or gain adjustments?\u003c\/span\u003e\u003cbr data-start=\"98\" data-end=\"101\"\u003e\u003cspan\u003eA: Yes, the indicator lights can show your progress: The left light stays solid at the minimum value. As you increase the value, the lights light up sequentially. When all three lights are solid, it indicates the maximum level.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eQ: Why do the left and right needles respond differently?\u003cbr\u003eA: The inconsistency in the left and right needles is a normal phenomenon caused by differences in the stereo balance of different songs. It does not indicate a malfunction of the VU360.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eQ: Why is the VU360 meter needle barely moving when connected to a turntable?\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eA: The turntable's output signal is typically too weak and requires amplification via a phono preamp. The VU360 is designed for standard line-level signals, such as those from CD players, computers, or phones.\u003c\/span\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: Douk Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: VU360\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVU meter version: Yellow \/ White (Optional) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: 3.5mm AUX \/ Microphone pickup\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: 3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNumber of channels: 2.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBacklight color: Single-color \/ Multi-color\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBrightness adjustment: 8-level\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGain adjustment: Supported\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensitivity adjustment: Supported\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVU meter diameter: 75mm \/ 2.95in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput voltage: DC 5V \/ ≥1A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower interface: USB-C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 105*105*70mm \/ 4.13*4.13*2.76in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 204*153*102mm \/ 8.03*6.02*4.01in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 618g \/ 1.36lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 1.0kg \/ 1.10lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\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* VU360\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Type-C 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":"Douk Audio","offers":[{"title":"Yellow \/ US","offer_id":47743725994216,"sku":"SUC-VU360-Y-US","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ UK","offer_id":47743726026984,"sku":"SUC-VU360-Y-UK","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ EU","offer_id":47743726059752,"sku":"SUC-VU360-Y-DE","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ AU","offer_id":47743726092520,"sku":"SUC-VU360-Y-AU","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ China","offer_id":47743726125288,"sku":"SUC-VU360-Y","price":99.99,"currency_code":"USD","in_stock":true},{"title":"White \/ US","offer_id":47747888087272,"sku":"SUC-VU360-W-US","price":99.99,"currency_code":"USD","in_stock":true},{"title":"White \/ UK","offer_id":47747888120040,"sku":"SUC-VU360-W-UK","price":99.99,"currency_code":"USD","in_stock":true},{"title":"White \/ EU","offer_id":47747888152808,"sku":"SUC-VU360-W-DE","price":99.99,"currency_code":"USD","in_stock":true},{"title":"White \/ AU","offer_id":47747888185576,"sku":"SUC-VU360-W-AU","price":99.99,"currency_code":"USD","in_stock":true},{"title":"White \/ China","offer_id":47747888218344,"sku":"SUC-VU360-W","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_74ecd132-66b5-4972-a0ff-62951bb71044.jpg?v=1760577236"},{"product_id":"ampapa-q1","title":"Ampapa Q1 HIFI ESS9039+AK4493 Desktop DAC [Based on DAC-Q11]","description":"\u003cdiv\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eNext-Gen DAC Performance: A fully upgraded successor to the Douk Audio DAC-Q11, the Q1 retains its signature dual-DAC design while improving every core spec with cutting-edge ESS9039, AK4493, XMOS XU316, Bluetooth 5.2 and vivid OLED display. High-res support up to PCM 768kHz\/32bit and DSD512 delivers studio-level clarity.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDual DAC Architecture: Easily switch between ESS9039 for clean, analytical sound or AK4493 for smoother musicality. Assign your preferred DAC chip and filter mode to each LINE and headphone output, tailoring sound to different genres, gear, or moods. SINAD ≥113dB, THD+N as low as 0.0002%, ensuring clean, distortion-free audio.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eExpressive Display with Style: The screen clearly shows input mode, DAC chip assignment, USB driver mode, and volume—everything you need at a glance. Q1 also offers 11 unique display modes, including diverse retro-style VU meters, audio spectrum, spinning vinyl, and cassette-style reels, each adding visual character to your HiFi setup.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eInput and Output Versatility: Supports USB-C with UAC 1.0\/2.0 modes for wider compatibility, including gaming consoles, plus Bluetooth with aptX\/aptX-HD, coaxial, and optical inputs. Q1 has 2xRCA and 2xbalanced TRS outputs, powering up to four amps or active speakers at once. A 3.5mm headphone jack offers personal listening with 1000mW output and two gain levels for optimal performance with both IEMs and high-impedance headphones.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFull Control at Your Fingertips: Customize your audio with four swappable LM49720 op-amps, easily accessible via a top window. Q1 also features full-spectrum RGB lighting, remote control, Bluetooth reset, adjustable brightness, and 12V trigger out. Perfectly matched with the Ampapa D1 for a cohesive stack both visually and functionally.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eQ: What operating systems are compatible with the Q1’s USB connection, and do I need to install a driver?\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e Q1 \u003c\/span\u003e\u003cspan\u003esupports\u003c\/span\u003e\u003cspan\u003e Windows 10\/11, macOS, Android, iOS, and audio-focused Linux (e.g. Volumio, ROON). USB connection with phones requires OTG support. No drivers \u003c\/span\u003e\u003cspan\u003eneeded\u003c\/span\u003e\u003cspan\u003e for mobile devices, macOs, or Linux. Windows needs a driver only in UAC 2.0 mode.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cstrong data-end=\"639\" data-start=\"581\"\u003eQ: Can I remove the mesh layer on the Q1’s top window?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-end=\"642\" data-start=\"639\"\u003e\u003cspan\u003e\u003cstrong data-end=\"650\" data-start=\"644\"\u003eA:\u003c\/strong\u003e No. It’s a built-in EMI shield to prevent signal interference. Please do not remove it, and keep phones or routers away from the Q1.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cstrong data-end=\"590\" data-start=\"543\"\u003eQ: Can I replace the op-amps in the Q1?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-end=\"593\" data-start=\"590\"\u003e\u003cspan\u003e\u003cstrong data-end=\"599\" data-start=\"593\"\u003eA:\u003c\/strong\u003e Yes, the Q1 uses 4PCs pluggable LM49720 op-amps, which can be replaced by standard dual op-amps like 2604\/2134\/muses02 etc. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cstrong data-end=\"814\" data-start=\"748\"\u003eQ: Why don't the single VU meter and spectrum display work properly?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-end=\"817\" data-start=\"814\"\u003e\u003cspan\u003e\u003cstrong data-end=\"823\" data-start=\"817\"\u003eA:\u003c\/strong\u003e In single VU meter and spectrum modes, the Q1 only detects the left channel input. If only the right channel is connected, the VU meter and spectrum display will not operate. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cstrong\u003eQ: Why can't I find Q1 in my Bluetooth list?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-end=\"507\" data-start=\"504\"\u003e\u003cspan\u003e\u003cstrong\u003eA: \u003c\/strong\u003eMake sure Q1 is set to Bluetooth mode, then turn on Bluetooth on your phone and search for \"AMPAPA Q1\" to connect. If Q1 still doesn't appear, try clearing previous connections using the remote control.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cstrong data-end=\"596\" data-start=\"523\"\u003eQ: Why do the vinyl and tape-style displays spin at a constant speed?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-end=\"599\" data-start=\"596\"\u003e\u003cspan\u003e\u003cstrong data-end=\"605\" data-start=\"599\"\u003eA:\u003c\/strong\u003e These two display modes don’t react to audio signals, so they simply maintain a constant rotation speed. Even if the music is paused,the rotation continues as long as the mode is engaged. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cstrong\u003eQ: Why does the VU meter show a large deflection at low volume, but a smaller deflection at high volume? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e The Q1 features an automatic gain control system (AGC) for the VU meters. \u003c\/span\u003e\u003cspan\u003eWhen the input signal is low, the system switches to high gain; when the \u003c\/span\u003e\u003cspan\u003esignal is high, it switches to low gain. This ensures the VU meters maintain \u003c\/span\u003e\u003cspan\u003esufficient deflection across different volume levels.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cstrong\u003eQ: Does the remote control include batteries?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eA: \u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003eFor safer and faster delivery, the remote control may not include batteries (AAA*2). Please prepare them yourself.\u003c\/span\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: Ampapa\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: Q1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: Bluetooth 5.2 \/ USB-C \/ Coaxial \/ Optical\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: 2 sets of RCA \/ 2 sets of balanced TRS \/ 3.5mm headphone jack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChipset: ESS9039Q2M+AK4493+XMOS XU316+QCC304X+LM49720\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMax. sampling rate supported:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePC-USB: PCM 768KHz\/32bit, DSD(Native) 512, DSD(DoP) 256\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCoaxial \/ Optical: PCM 192KHz\/24bit, DSD(DoP) 64\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBluetooth 5.2: 48KHz\/24Bit\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUSB supported operating systems: W10\/W11\/macOs\/Linux\/Android\/iOS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBluetooth supported codecs: SBC\/aptX\/aptX-HD\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 20Hz-20kHz (±0.2dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD+N: 0.0002%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: ≥120dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMax. output level: RCA: 2V   TRS: 4V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMax. headphone output power\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHigh gain: 1000mW@32Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLow gain: 380mW@32Ω \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMatched headphone impedance: 16-600Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput sensitivity: 0dBFS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUSB driver mode: UAC 1.0\/2.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemote control: Supported\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eScreen display: 11 VU modes +1 working status mode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBacklight brightness: 10-level adjustment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLED color: Infinite RGB color combinations\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorking voltage: DC 12V (5.5*2.1mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 155*124*42mm \/ 6.10*4.88*1.65in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage Dimensions (W*D*H): 300*230*70mm \/ 11.81*9.05*2.75in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 643g \/ 1.42lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage weight: 1.2kg \/ 2.64lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\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* Q1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* DC 12V Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Bluetooth Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* USB-C to USB-A\/USB-C Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Optical Fiber Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* 3.5mm Trigger Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Remote Control (without battery)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Cleaning Cloth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Certificate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Warranty\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47772093776104,"sku":"SUC-Q1-US","price":269.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47772093808872,"sku":"SUC-Q1-UK","price":269.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47772093841640,"sku":"SUC-Q1-DE","price":269.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47772093874408,"sku":"SUC-Q1-AU","price":269.99,"currency_code":"USD","in_stock":true},{"title":"China","offer_id":47772093907176,"sku":"SUC-Q1","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/00_c6fd70eb-f526-4dea-8fcf-ae28df9f4a60.jpg?v=1764921914"}],"url":"https:\/\/doukaudio.com\/it\/collections\/vu-meter-display.oembed?page=2","provider":"Douk Audio","version":"1.0","type":"link"}