{"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","url":"https:\/\/doukaudibestseller.com\/es\/products\/douk-audio-t4-plus-hifi-5654-tube-phono-preamp-for-turntable-stereo-preamp-headphone-amp-w-vu-meter","provider":"Douk Audio","version":"1.0","type":"link"}