{"product_id":"ampapa-h1-class-a-headphone-amplifier-with-4000mw-output-trs-rca-preamp","title":"[Pre-Sale] Ampapa H1 Class A Headphone Amplifier 4000mW with TRS\/RCA Preamp","description":"\u003ch4 class=\"STYLE2\"\u003eFeatures\u003c\/h4\u003e\n\u003cp class=\"STYLE2\"\u003e \u003c\/p\u003e\n\u003cul class=\"STYLE2\"\u003e\n\u003cli\u003ePower for Demanding Headphones: Built around a discrete Class A output stage, Ampapa H1 delivers strong current drive and up to 4000mW from its balanced high-gain output, giving 16–600Ω headphones wider headroom, steadier control and smoother dynamics. 4.4mm, 4-pin XLR and 6.35mm outputs fit more full-size HiFi headphone setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul class=\"STYLE2\"\u003e\n\u003cli\u003ePreamp Control for Your Audio System: With 2×RCA and 1×TRS analog I\/O, H1 keeps your DAC, CD player and streamer connected for simple source selection, while its preamp outputs can stay linked to multiple power amps or active speakers for system expansion. Designed to complement Ampapa Q1 and D1, it adds tube preamp control for a more unified stack.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul class=\"STYLE2\"\u003e\n\u003cli\u003eCustom ECC83 Tube Character: Made with exclusive PSVANE × Douk Audio ECC83 tubes, H1 brings a warmer, richer tube character to both headphone listening and preamp output. The custom tube set gives H1 a more distinctive out-of-box identity, while tube rolling support leaves room to fine-tune the sound later.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul class=\"STYLE2\"\u003e\n\u003cli\u003eEffortless Control Across Your Setup: Low, mid and high gain help H1 match sensitive headphones, everyday models and harder-to-drive pairs with less guesswork. HP, Line and HP+Line output modes cover headphone, preamp output or both, while the 1.5-inch OLED keeps key status clear and 12V Trigger helps compatible gear power on\/off together.  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"STYLE2\"\u003eBuilt for Refined HiFi Use: Japan NJW1195 volume IC keeps channel balance stable, while pluggable op-amps leave room for sound tuning. 0.04% THD+N and ≥113dB SNR support clean signal performance, and the low-noise relays, isolated tube power shielding and CNC aluminum chassis add quieter operation and lasting build quality for demanding headphone listeners or serious HiFi users.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eParameters\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"STYLE14\"\u003e\u003cspan class=\"STYLE15\"\u003e\u003cspan class=\"STYLE16\"\u003e\u003cstrong data-end=\"104\" data-start=\"94\"\u003eBrand:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAmpapa\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"124\" data-start=\"114\"\u003eModel:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eH1\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"148\" data-start=\"131\"\u003eAudio Inputs:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e2 × RCA Inputs \/ 1 × TRS Input\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"201\" data-start=\"183\"\u003eAudio Outputs:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e2 × RCA Outputs \/ 1 × TRS Output\u003c\/li\u003e\n\u003cli\u003e4-Pin XLR \/ 6.35mm \/ 4.4mm Headphone Outputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"295\" data-start=\"285\"\u003eTHD+N:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e0.04%\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"313\" data-start=\"305\"\u003eSNR:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e≥113dB\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"347\" data-start=\"324\"\u003eFrequency Response:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e20Hz–20kHz (±0.7dB)\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"391\" data-start=\"369\"\u003eInput Sensitivity:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eRCA: 1V ; TRS: 2V\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong\u003eRated Output Level (by Gain): \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"456\" data-start=\"441\"\u003eRCA Output:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eHigh-3.0V ; Mid-2.1V ; Low-1.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"525\" data-start=\"510\"\u003eTRS Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-6.0V ; Mid-4.3V ; Low-3.0V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli class=\"STYLE2\" data-end=\"615\" data-start=\"584\" data-section-id=\"1f8qvx3\"\u003e\n\u003cstrong\u003eRated Headphone Output Power (by Gain):\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"637\" data-start=\"617\"\u003eBalanced Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-4W ; Mid-2W ; Low-1W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"709\" data-start=\"685\"\u003eSingle-Ended Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-1000mW ; Mid-500mW ; Low-250mW\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"799\" data-start=\"767\"\u003eMatched Headphone Impedance:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e16–600Ω\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"854\" data-start=\"838\"\u003ePower Input:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eDC 12V \/ ≥2A, 5.5 × 2.1mm\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong\u003eDimensions (W*D*H)\u003c\/strong\u003e: 155 × 124 × 42mm \/ 6.10 × 4.88 × 1.65in \u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"907\" data-start=\"884\"\u003ePackage Dimensions:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e268 × 192 × 95mm \/ 10.55 × 7.56 × 3.74in\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong\u003eNet Weight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e750g \/ 1.64lb\u003c\/li\u003e\n\u003cli class=\"STYLE2\"\u003e\n\u003cstrong data-end=\"971\" data-start=\"952\"\u003ePackage Weight:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e1.28kg \/ 2.82lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"STYLE3\"\u003ePacking List\u003c\/p\u003e\n\u003cdiv class=\"STYLE2\"\u003e\n\u003cul\u003e\n\u003cli\u003e1 × H1\u003c\/li\u003e\n\u003cli\u003e2 × ECC83 Tubes\u003c\/li\u003e\n\u003cli\u003e1 × DC 12V Power Adapter\u003c\/li\u003e\n\u003cli\u003e1 × 6.35mm to 3.5mm Adapter\u003c\/li\u003e\n\u003cli\u003e1 × 3.5mm Trigger Cable\u003c\/li\u003e\n\u003cli\u003e1 × Certificate\u003c\/li\u003e\n\u003cli\u003e1 × Warranty\u003c\/li\u003e\n\u003cli\u003e1 × Cleaning Cloth\u003c\/li\u003e\n\u003cli\u003e1 × User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFAQs\u003c\/p\u003e\n\u003cdiv class=\"qa-container\"\u003e\n\u003cdiv class=\"qa-question\"\u003e\n\u003cdiv class=\"icon question-icon\"\u003eQ: Can I use multiple headphone outputs at the same time?\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"qa-answer\"\u003e\n\u003cdiv class=\"icon answer-icon\"\u003eA: \u003cspan class=\"STYLE15\"\u003eThe 6.35mm output has priority. When a 6.35mm plug or adapter is inserted, the 4.4mm and 4-pin XLR outputs are disabled. For best performance, we recommend using one headphone output at a time.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"qa-container\"\u003e\n\u003cdiv class=\"qa-question\"\u003e\n\u003cdiv class=\"icon question-icon\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"icon question-icon\"\u003eQ: \u003cspan class=\"STYLE15\"\u003eHow should I choose the gain setting?\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"qa-answer\"\u003e\n\u003cdiv class=\"icon answer-icon\"\u003eA: \u003cspan class=\"STYLE15\"\u003eUse Low Gain for sensitive or low-impedance headphones, Mid Gain for most daily listening, and High Gain for high-impedance or harder-to-drive headphones. Start low, then increase the gain if more volume or drive is needed.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"qa-container\"\u003e\n\u003cdiv class=\"qa-question\"\u003e\n\u003cdiv class=\"icon question-icon\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"icon question-icon\"\u003eQ: \u003cspan class=\"STYLE15\"\u003eCan I replace the tubes?\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"qa-answer\"\u003e\n\u003cdiv class=\"icon answer-icon\"\u003eA: \u003cspan class=\"STYLE15\"\u003eYes. H1 uses ECC83 tubes and supports compatible tube rolling with 12AX7, 7205, 6N4 and 5751 tubes. Always power off the H1 before replacing tubes, and confirm compatibility before trying other tube models.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"qa-container\"\u003e\n\u003cdiv class=\"qa-question\"\u003e\n\u003cdiv class=\"icon question-icon\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"icon question-icon\"\u003eQ: \u003cspan class=\"STYLE15\"\u003eCan I replace the op-amps?\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"qa-answer\"\u003e\n\u003cdiv class=\"icon answer-icon\"\u003eA: \u003cspan class=\"STYLE15\"\u003eYes. H1 uses two pluggable LME49720 op-amps and supports replacement with standard DIP-8 dual op-amps such as OPA2604, OPA2134 and MUSES02. Please power off the H1 before replacement and check chip orientation carefully.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"qa-container\"\u003e\n\u003cdiv class=\"qa-question\"\u003e\n\u003cdiv class=\"icon question-icon\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"icon question-icon\"\u003eQ: \u003cspan class=\"STYLE15\"\u003eWhat power adapter should I use?\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"qa-answer\"\u003e\n\u003cdiv class=\"icon answer-icon\"\u003eA: \u003cspan class=\"STYLE15\"\u003ePlease use the included DC 12V\/2A power adapter. If using another adapter, choose a high-quality DC 12V adapter rated at 2A or higher. Do not use an adapter with excessive voltage.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"STYLE3\"\u003e \u003c\/p\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":48735679742184,"sku":null,"price":169.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":48735679774952,"sku":null,"price":169.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":48735679807720,"sku":null,"price":169.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":48735679840488,"sku":null,"price":169.99,"currency_code":"USD","in_stock":true},{"title":"China","offer_id":48735679873256,"sku":null,"price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_bf5f9db8-3dcd-410d-b973-a16af285dd95.jpg?v=1783930279","url":"https:\/\/doukaudio.com\/es-ca\/products\/ampapa-h1-class-a-headphone-amplifier-with-4000mw-output-trs-rca-preamp","provider":"Douk Audio","version":"1.0","type":"link"}