{"title":"Mini Amplifier","description":"","products":[{"product_id":"doukaudibestseller.com-nobsound-ns-10g-pro-mini-bluetooth-5-0-digital-amplifier-dsp-hifi-stereo-audio-power-amp","title":"Nobsound NS-10G PRO Mini Bluetooth 5.0 Digital Amplifier DSP HiFi Stereo Audio Power Amp","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cp style=\"text-align: left;\" data-mce-fragment=\"1\" align=\"center\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e①LATEST VERSION\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNobsound NS-10G Pro is the newest update version of our popular NS-10G amplifier. It has better performance and purer Hi-Fi music experience. A great choice for your home audio system.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e②ENJOY HI-FI MUSIC WIRELESSLY\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBluetooth 5.0+EDR and Hi-Fi DSP (Digital Signal Processing) to achieve much better Hi-Fi sound quality (BT distance is improved to 15m).\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e③NO BACKGROUND NOISE\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eWe remove unnecessary functions like volume control, which make its circuit design is purer and shortened the length of the signal trace.\u003c\/span\u003e \u003cspan data-mce-fragment=\"1\"\u003eNo noise floor, all for best Hi-Fi.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e④MINI ELEGANT SIZE BUT POWERFUL\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDespite its mini size (can be hold with one hand), the output power is improved to 200W (100W*2) with the upgraded chip TPA3221. You will be amazed by its output power compared to its size when you see it.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e⑤LOSSLESS TRANSMISSION\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eUpgraded gold-plated copper binding posts can greatly enhance its corrosion resistance and ensure high quality transmission even after long-time use.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e⑥COMPACT\u0026amp;PRACTICAL\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAccording to our customers needs, this upgrade version has no prompt tone. No fancy, simple and practical.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003e⑦SUPER COMPATIBILITY\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eCan be widely applied to All Your Favorite Devices such as Smartphone, TV, iPod Touch, iPhone, iPad, Computer, Tablet PC, CD Player, MP3, Music Player etc. Versatile and simple to use. (Not suit for calling.)\u003c\/span\u003e\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eParameters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eColor: Black \/ Silver \/ Gold \/ Blue \/ Red\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBluetooth distance: 15 meters (older version is 10m)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBluetooth standard protocol: Bluetooth 5.0 + EDR + DSP\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eRated power: 100W× 2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAudio Input: Bluetooth, AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAmplifier chip: American TI Texas Instruments TPA3221\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePower input: DC9V-24V \/ 3A or above\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDimensions: (W)78 × (D)70 × (H)23 mm (3.07 × 2.76 × 0.91 inches)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWeight:  240g\/460g (Without\/With Power Supply)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePacking List\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1 * NS-10G Pro Amplifier\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1 * 12V\/5A Power Supply \u003cspan data-mce-fragment=\"1\"\u003e(Optional)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1 * RCA Audio Cable\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1 * 3.5mm Audio Cable\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1 * Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e","brand":"doukaudio","offers":[{"title":"With Power Supply \/ Black \/ US","offer_id":43054899101928,"sku":"DZ042H-19V-3.42A-US","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ UK","offer_id":47406900674792,"sku":"DZ042H-19V-3.42A-UK","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ EU","offer_id":47406900707560,"sku":"DZ042H-19V-3.42A-DE","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ AU","offer_id":47406900740328,"sku":"DZ042H-19V-3.42A-AU","price":39.99,"currency_code":"USD","in_stock":true},{"title":"With Power Supply \/ Black \/ Other","offer_id":47406900773096,"sku":"DZ042H-19V-3.42A","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Black \/ US","offer_id":43054899265768,"sku":"DZ042H-US","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Black \/ UK","offer_id":47406900805864,"sku":"DZ042H-UK","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Black \/ EU","offer_id":47406900838632,"sku":"DZ042H-DE","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Black \/ AU","offer_id":47406900871400,"sku":"DZ042H-AU","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Without Power Supply \/ Black \/ Other","offer_id":47406900904168,"sku":"DZ042H","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/DZ042-5_3.jpg?v=1650849115"},{"product_id":"doukaudibestseller.com-douk-audio-g4-mono-channel-digital-amplifier-subwoofer-full-frequency-power-amp-100w","title":"Douk Audio G4 Mono Channel Digital Amplifier Subwoofer\/Full-Frequency Power Amp 100W","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003eNotice: \u003c\/strong\u003eThis is mono amplifier, if you want stereo output please buy 2PCS or 3PCS.\u003c\/span\u003e\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eG4 can be used as full frequency amp or subwoofer amp with the B\/M switch to connect different speakers, and with 3.5mm AUX and RCA input to compatible with different audio devices. 2PCS G4 can be used to drive left and right channel independently to avoid mutual interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAdopting 2PCS NE5532 op-amp and TI's TPA3116 chip, output power up to 100W enough to drive passive 3-10 inch full-frequency speakers or 4-12 inch subwoofers, no audible noise even at large power output, upgrade your 2.0 channel audio system to 2.1, providing shocking cinema effects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBy combining the stereo(left and right channel) input, first to do signal analysis and frequency processing and then power amplification, the low-frequency filtering will be more pure and power consumption is more efficient.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMini size with exquisite appearance: mono integrated class D amplifier, simple compact design but with powerful function, more fashionable and durable solid aluminum chassis, very suitable for HiFi home and desktop audio system use. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio input: 3.5mm AUX \/ RCA\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio output: banana speaker jacks\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRated power: 100W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePeak power : 300W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTHD: 0.001%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSNR: 103dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSpeaker impedance: 4-8Ω\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMatched full-frequency or crossover speaker: 3-10 inch \/ 10-200W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMatched subwoofer speaker: 4-12 inch \/ 40-200W\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency range:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cblockquote data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSubwoofer mode: 20-200Hz\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFull-frequency mode: 20-20Khz\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWorking voltage: DC 12-24V 5.5mm (-) \/ 2.5mm (+)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDimensions(L*W*H): 105*85*30mm \/ 4.13**3.35*1.18in\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNet weight: 240g \/ 0.53lb\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage weight: 445g \/ 0.98lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1*G4 Mono Amplifier\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e1*19V Power Supply\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*Manual \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"Without Power Adapter \/ US","offer_id":47198643290344,"sku":"DZ078-DJ-US","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ UK","offer_id":47411109363944,"sku":"DZ078-DJ-UK","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ EU","offer_id":47411109396712,"sku":"DZ078-DJ-DE","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ AU","offer_id":47411109429480,"sku":"DZ078-DJ-AU","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Without Power Adapter \/ Other","offer_id":47411109462248,"sku":"DZ078-DJ","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ US","offer_id":47198643323112,"sku":"DZ078-19V-US","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ UK","offer_id":47411109495016,"sku":"DZ078-19V-UK","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ EU","offer_id":47411109527784,"sku":"DZ078-19V-DE","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ AU","offer_id":47411109560552,"sku":"DZ078-19V-AU","price":54.99,"currency_code":"USD","in_stock":true},{"title":"With 19V\/4.74A Power Adapter \/ Other","offer_id":47411109593320,"sku":"DZ078-19V","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/DZ078-DY-2023_5.jpg?v=1692606647"},{"product_id":"hifi-bluetooth-5-0-digital-power-amplifier-stereo-2-4-channel-audio-amp-50w-4","title":"Douk Audio M4 HiFi Bluetooth 5.0 Digital Amplifier Stereo 4 Channel Multi-room Audio Amp 50W×4","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli\u003eOne group of stereo RCA (CH3 and CH4) can be used as audio input or output by switching the selector, to acheive different demands:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cblockquote\u003e\n\u003cdiv style=\"text-align: left;\" id=\"pastingspan1\"\u003eCH3\/CH4 as audio output: 4 groups of speaker sockets can connect to 2 pair of speakers. Besides connect to active speakers, CH3\/CH4 also can connect to another M4 amplifier to connect more speakers, in this way multiple amplifiers and multiple speakers can be connected in turn, to achieve one audio signal be shared in several rooms.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eCH3\/CH4 as audio input: one input corresponds to one output (ex. CH1 speaker socket will output the audio signal that CH1 inputs), which means that two groups of stereo audio signal (or 4 groups of mono audio signal) can be input at the same time.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul\u003e\n\u003cli\u003eSupporting wired 2 groups of stereo RCA and wireless Bluetooth 5.0 input, compatible with most common audio device such as phones, computers, TVs, MP3, TV, CD players etc. With U-disk input, it can be used as a digital music player, supporting MP3, WAV, APE, FLAC and WMA lossless formats.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eWith 4 groups of speaker sockets output, they can output at the same time and each channel with independent volume control. Its max output power can reach 50W×4, and equipped with high-quality 24V\/4.5A power supply, enough to drive most home speakers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eReasonable circuit layout, concise wiring and high-quality components to ensure HiFi clear sound and long time stable work. Separate design of small and \u003cspan\u003e\u003cspan\u003elarge signal circuit for better circuit protection. \u003c!-- x-tinymce\/html --\u003eBluetooth 5.0 version with high-gain antenna, ensure more stable and faster transmission.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePropersize with exquisite appearance, aluminum alloy case is CNC machined and with anodizing process, more fashionable and durable, very suitable for home, office and desktop audio system use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eNotice:\u003c\/strong\u003e U-disk input is prior to Bluetooth input, so please make sure U-disk has been pulled out if you want Bluetooth input.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eParameters\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\"\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003eModel: Douk Audio M4\u003c\/li\u003e\n\u003cli\u003eChannel: 2.0 \/ 4.0\u003c\/li\u003e\n\u003cli\u003eAudio input: Bluetooth\/Stereo RCA\/U-disk\u003c\/li\u003e\n\u003cli\u003eAudio output: speaker sockets\u003c\/li\u003e\n\u003cli\u003eU-disk support format: MP3, WMA, APE, FLAC, WAV...\u003c\/li\u003e\n\u003cli\u003eU-disk capacity: max 32G\u003c\/li\u003e\n\u003cli\u003eBluetooth version: 5.0\u003c\/li\u003e\n\u003cli\u003eSpeaker impedance: 4-8Ω\u003c\/li\u003e\n\u003cli\u003eMax output power: 50W*4 (4Ω load)\u003c\/li\u003e\n\u003cli\u003eSNR: ≥98dB\u003c\/li\u003e\n\u003cli\u003eInput sensitivity: 0.775V\u003c\/li\u003e\n\u003cli\u003eTHD: 0.05%(1kHz 1W)\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 20Hz-20KHz(±3dB)\u003c\/li\u003e\n\u003cli\u003eWorking voltage: DC 12-24V\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eDimensions(W*D*H): 128*134*33mm \/ 5.04*5.28*1.30in\u003c\/li\u003e\n\u003cli\u003eNet weight: 533g \/ 1.18lb\u003c\/li\u003e\n\u003cli\u003ePackage weight: 1100g \/ 2.43lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e1*M4 Amplifier\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1*24V\/4.5A Power Supply\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1 Set*Raw Cable Speaker Jacks\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1*Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47198649778408,"sku":"SUC-M4-24V-US","price":79.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406895038696,"sku":"SUC-M4-24V-UK","price":79.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406895071464,"sku":"SUC-M4-24V-DE","price":79.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406895104232,"sku":"SUC-M4-24V-AU","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406895137000,"sku":"SUC-M4-24V","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/SUC-M4-newlogo_7.jpg?v=1703569686"},{"product_id":"douk-audio-u3-mini-class-a-headphone-amplifier-hifi-desktop-home-stereo-amp-dc5v","title":"Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Stereo Amp for HD650\/K701\/DT880\/T70\/RS1e","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003eWarm tips:\u003c\/strong\u003e \u003cbr data-mce-fragment=\"1\"\u003eNot inlcude power adapter, recommend to use original high-quality power adapter above 5W. \u003cbr data-mce-fragment=\"1\"\u003eFor example: the current should be above 1A if use DC 5V while need above 0.5A if use DC 12V power adapter.\u003c\/span\u003e\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAdopting innovative circuit design, DC 5-20V wide input working voltage, the amplifier circuit can always work at a high voltage of 26V, and the background noise index is excellent. With wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAdopting original TI-NE5532 classical op amp and transistor expanding current circuit, using 1300mA large current output transistor working in class A status, with ultra-low distortion, and the sound is warm and delicate, full and mellow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePluggable op amp socket design, convenient to upgrade different op amps and bring much DIY fun and playability for audiophiles. Smooth and mellow sound, suitable for listening to vocals or string music, classic or pop music, and even with unique charm when playing rock.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMini size with exquisite appearance and most cost-effective, brings big surprise for all audiophiles, easily to drive most headphones in the market, providing larger power, better sound field and details, very suitable for home\/office desltop audio system use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWith stong drive power, easily to drive most high-impedance headphones such as:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cblockquote data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eHD580\/HD600\/HD650\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eK701\/K702\/Q701\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDT880\/T70\/T90\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSR225\/SR325\/RS1e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eParameters:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio input: stereo L\/R RCA\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAudio output: 6.35mm headphone jack (with 6.35mm to 3.5mm adapter)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOutput power: ≥1300mW (32Ω)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMatched headphone impedance: 18-600Ω\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency response: 20-30KHz\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSignal to noise ratio: ≥110DB\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMax output amplitude voltage: 25V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInput voltage: DC 5-20V\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDimension(W*D*H): 67*93*30mm \/ 2.64*3.66*1.18in\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNet weight: 169g \/ 0.37lb\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePackage weight: 310g \/ 0.68lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"pastingspan1\" style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv id=\"pastingspan1\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e1*U3 Headphone Amplifier\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*6.35mm to 3.5mm Headphone Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406714618088,"sku":"XZ-U3-US","price":36.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406714650856,"sku":"XZ-U3-UK","price":36.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406714683624,"sku":"XZ-U3-DE","price":36.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406714716392,"sku":"XZ-U3-AU","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406714749160,"sku":"XZ-U3","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/XZ-U3-P_1.jpg?v=1650965746"},{"product_id":"douk-audio-u5-mini-fully-balanced-headphone-amplifier-for-xlr-4-4mm-headsets","title":"Douk Audio U5 Mini Fully Balanced Headphone Amplifier for XLR \/ 4.4mm Headsets","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e【Fully balanced headphone amplifier】Adopting fully balanced amplifier circuit and innovative circuit design, the amplifier circuit of U5 always works at a high voltage of 24V even if input DC 5V, with wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e【Easily to drive low or high impedance headphones】For a total power output of up to 1400mW under a 32Ω load, U5 can easily power headphones with any low or high impedance (18-600Ω). Volume knob allows you to smoothly adjust volume without any undesirable noise nor any channel imbalances.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e【Pure analog design to reproduce music truly】Pure analog amplification circuit and analog control, show you the truest sound, all aspects are in the top-class such as sound field, sound position, details etc.. Adopt original JRC4580 classical op amp, pluggable socket design, convenient to upgrade different op amps to enjoy other sound styles.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e【Most cost-effective amp on the market】Mini size and exquisite appearance, and with low distortion, high power and a pure, uncolored sound, you’ll experience subtle details and shocking swings in your music effortlessly. U5, the best helper for all xlr\/4.4mm headphones to improve their sound quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWarm tips\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eWithout DC 5V power adapter, you can use your phone charger, input over 5V will result in damage.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eAudio input: stereo L\/R XLR ( 3-core, female)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eAudio output: XLR ( 4-core, female) \/ 4.4mm \u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eOutput power: ≥1400mW (32Ω)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eMatched headphone impedance: 18-600Ω\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eFrequency response: 20-30KHz\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eSignal to noise ratio: ≥110DB\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eTHD: 0.005%\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eInput voltage: DC 5V (recommend above 1A)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eDimension(W*D*H): 68*69*28mm \/ 2.68*2.72*1.50in\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eNet weight: 149g \/ 0.33lb\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePackage weight: 500g \/ 1.10lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e1*U5 Headphone Amplifier\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406747975912,"sku":"XZ-U5-US","price":52.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406748008680,"sku":"XZ-U5-UK","price":52.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406748041448,"sku":"XZ-U5-DE","price":52.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406748074216,"sku":"XZ-U5-AU","price":52.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406748106984,"sku":"XZ-U5","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/XZ-U5-cadisi-Y_1.jpg?v=1668577222"},{"product_id":"ampapa-a1-mini-5654-vacuum-tube-preamp-phono-turntable-amplifier-w-tone-control","title":"Ampapa A1 Mini 5654 Vacuum Tube Preamp Phono\/Turntable Amplifier w\/Tone Control","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNobsound \/ Douk Audio is the only authorized distributor of Ampapa A1.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eIntroduction\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv align=\"center\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eA1 tube preamp \/ phono preamp \/ headphone amp is the first product carefully designed by Ampapa, with high-end configuration, powerful functions and amazing looking. Ampapa, always devoted to exploring the design innovation of HiFi and amplifying all passion for music.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eFeatures\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eAmpapa A1, more than one simple preamp:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMM input, converts phono signal to line level signal, with low-noise integrated circuits and high-quality components to ensure clear and clean sound.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eStereo RCA input, amplifies the low level audio signal from your phone, tablet, PC, MP3 etc., easier to drive amplifiers or active speakers and greatly improve the sound quality.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eJAN5654 tubes and HiFi vintage analog sound: reveal a sound that is both warm and fine, highlight great musicality, and improve everything associated with music such as detail, transparency, immediacy, richness, dynamic, tone etc.. Ceramic silver-plated pluggable tube socket for tube rolling and sound-shaping, easy to replace according to one's preference.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTone Control and 3.5mm headphone output: get more delicate and smooth sound by adjusting treble \/ bass knob, presenting music with rousing highs and deep lows and rejuvenating your audio system. Reasonable and advanced architecture, adds classic headphone amp circuit (2*NE5532), easily to drive 16-300 ohm headphones. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eExcellent performance and amazing design: all details full of texture, provide different acoustic enjoyment with large dynamic and sweet tube sound even in limited space. Using high-quality components, solid aluminum alloy knobs, unique appearance modeling decorates with warm orange \/ cool green lights etc., all is for the best listening experience. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eWarm tips:\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e1. A1 is designed with pluggable tube socket, compatible with 6J1, 6K4, 6J5, GE5654W, 6*1N, 6*2N, 6J5, 6A2, etc., can be replaced directly. \u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2. Stereo RCA output and 3.5mm headphone output can work at the same time, and the volume \/ treble \/ bass of two outputs are controlled simultaneously. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003eParameters\u003cbr\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Ampapa\u003c\/li\u003e\n\u003cli\u003eModel: A1\u003c\/li\u003e\n\u003cli\u003eAudio input: Phono MM \/ Stereo RCA\u003c\/li\u003e\n\u003cli\u003eAudio output: Stereo RCA \/ 3.5mm Headphone Jack\u003c\/li\u003e\n\u003cli\u003eInput level: 0.775V RMS (RCA) \/ 0.005V RMS (Phono)\u003c\/li\u003e\n\u003cli\u003eFrequency response: 20Hz-20KHz (±0.5dB) (RCA) \/ Ref to RIAA +\/-2dB (Phono)\u003c\/li\u003e\n\u003cli\u003eHeadphone output power: 125mW (32Ω)\/62.5mW(64Ω)\/30mW(128Ω)\u003c\/li\u003e\n\u003cli\u003eHeadphone impedance range: 16-300Ω\u003c\/li\u003e\n\u003cli\u003eTHD: ≤0.1%\u003c\/li\u003e\n\u003cli\u003eOutput level: 1.5V RMS (RCA) \/ 0.6V RMS (Phono)\u003c\/li\u003e\n\u003cli\u003eS\/N ratio: ≥106dB (RCA) \/ ≥80dB(Phono)\u003c\/li\u003e\n\u003cli\u003eWorking voltage: DC 12V(≥1.5A)\u003c\/li\u003e\n\u003cli\u003ePackage weight: 900g \/ 1.98lb\u003c\/li\u003e\n\u003cli\u003ePackage dimensions (W*D*H): 260*145*78mm \/ 10.24*5.71*3.07in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003chr data-mce-fragment=\"1\"\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePacking List\u003c\/span\u003e\u003c\/div\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*A1 Preamp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2*5654 Vacuum Tube\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*DC 12V Power Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*RCA Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*Wiping Cloth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1*Warranty\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47406558281960,"sku":"SUC-A1-US","price":129.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406558314728,"sku":"SUC-A1-UK","price":129.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406558347496,"sku":"SUC-A1-DE","price":129.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406558380264,"sku":"SUC-A1-AU","price":129.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406558413032,"sku":"SUC-A1","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/SUC-A1-2022_4.jpg?v=1663234890"},{"product_id":"douk-audio-u10-mini-tube-headphone-amplifier-hifi-stereo-preamp-for-home-speaker","title":"Douk Audio U10 Mini Tube Headphone Amplifier HIFI Stereo Preamp for Home Speaker","description":"\u003c!-- x-tinymce\/html --\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eU10 headphone amplifier with strong power:  stereo 3.5mm AUX and RCA inputs, compatible with most audio source such as MP3, phones, computers, CD players etc.. Dual headphone jacks (3.5\/6.35mm) output up to 1100mW, easily to drive all 18-600Ω headphones; U10 also can be used as a preamp to improve the sound quality for amplifiers or active speakers.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eAdvanced design and HIFI sound: innovative built-in voltage boost circuit, U10 always works at a high voltage of 24V even only powered by DC 5V, the sound with deadly quiet background, amazing purity and transparency, accurate position and wide sound field, easy use and unrivalled sound are both achieved at the same time.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003ePluggable design with higher playability: 2PCS 6A2 tubes are adopted to soften and warm the audio, sounds real and natural, full and mellow, delicate and sweet. Both tubes and op amps are designed with pluggable socket, convenient for tube rolling, op amp upgrading and sound-shaping, different styles of sound can be enjoyed easily.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eExcellent manufacturing and most cost-effective: all metal case with good shielding, pure ceramic tube socket with antioxidant contact etc., U10 provides excellent sound and strong power for your headphones in such a mini size, specially suitable for the audiophiles who love listening to vocals, string music, light or classic music etc..\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eWarm tips:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e1. Not inlcude power adapter, recommend to use original high-quality power adapter (DC5V\/≥2A ). U10 won't work normally if the current below 2A.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e2. Inputs (3.5mm \/ RCA) and outputs (6.35mm\/3.5mm jack) are connected in parallel, in other words, all inputs and outputs work simultaneously. Don't connect 3.5mm and RCA inputs at the same time, or else audio signals will be mixed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e3. Pluggable tube socket design, 6A2 can be replaced by the following models:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e6J1、6ж1П、6AK5、6BC5、403A\/B、5654、EF40、EF95、CV850、6J2、6ж2П、6AS6、CV2522、EF11\/732、CV4011、6J3、6ж3П、EF96、CV848、6BC6、6AG5、 6J4、6ж4、6136、6BX6、6AC7、EF94、6AU6、6K4、6K5、6K4П、6BA6、6DA6、EF89\/93、5749\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e4. U10 can easily drive all headphones even with high-impedance such as HD580\/HD600\/HD650 \/ K701\/K702\/Q701 \/ DT880\/T70\/T90 \/ SR225\/SR325\/RS1e etc.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eParameters:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand: Douk Audio\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eModel: U10\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio input: 3.5mm AUX \/ Stereo RCA\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAudio output: 3.5mm \/ 6.35mm headphone jack\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTube Model: 6A2 (2PCS)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOp amp model: NE5532 (2PCS)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFrequency response: 20Hz-30KHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eOutput power: ≥1100mW (32Ω)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMatched headphone impedance: 18-600Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSignal to noise ratio: ≥110DB\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eInput voltage: DC 5V (≥2A)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWorking voltage inside: DC 24V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eNet weight: 200g \/ 0.44lb\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage weight: 300g \/ 0.66lb\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDimensions (W*D*H): 69*95*30mm \/ 2.72*3.74*1.18in (not including tubes)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage Dimensions (W*D*H): 132*85*90mm \/ 5.20*3.35*3.54in\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1 × U10 Headphone Amplifier\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e2 × 6A2 Tube\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan\u003e1 × Acrylic Board\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1 × USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan\u003e1 × User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406711111912,"sku":"XZ-U10-US","price":49.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406711144680,"sku":"XZ-U10-UK","price":49.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406711177448,"sku":"XZ-U10-DE","price":49.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406711210216,"sku":"XZ-U10-AU","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406711242984,"sku":"XZ-U10","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/products\/1_3341d812-e0b5-4f00-b4cd-18d84d69cb2d.jpg?v=1679712496"},{"product_id":"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-u3-pro-hifi-mini-headphone-amplifier-class-a-desktop-amp-for-headsets-dc5v","title":"Douk Audio U3 PRO HiFi Mini Headphone Amplifier Class A Desktop Amp for Headsets DC5V","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eEnhanced Compatibility: with 3.5mm AUX\/stereo RCA input and 3.5mm\/6.35mm headphone jack output, the U3 PRO is compatible with a wide range of audio sources, including MP3 players, iPods, smartphones, tablets, computers, and CD players etc. Its output can connect to various headphones, offering a versatile listening experience with support for most headphone models.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBuilt-in Voltage Boost Circuit: adopting innovative circuit design with built-in voltage boost circuit, the amplifier circuit can always work at a high voltage of ±14V even only powered by DC 5V, and the background noise index is excellent. With wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eExceptional Output Power: for a total power output of up to 1500mW under a 32Ω load, U3 PRO can easily power headphones with any low or high impedance (18-600Ω). Working in class A status, with ultra-low distortion, the sound is warm and delicate, full and mellow with outstanding sound quality. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eClassic OP+BUF Architecture: U3 PRO adopts OP42 and BUF634, featuring a pure DC amplification circuit. Pluggable op amp socket design, OP42 can be replaced by OP17, AD797, AD843, AD847, and OPA627, convenient to upgrade different op amps and bring much DIY fun and playability for audiophiles. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eHighly Cost-Effective: mini size with exquisite appearance, brings big surprise for all audiophiles, easily to drive most headphones in the market, providing larger power, better sound field and details, very suitable for home\/office desktop audio system use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv style=\"line-height: 1.5;\"\u003eWarm tips:\u003cbr\u003e1. Without DC 5V power adapter, please prepare an original high-quality power adapter yourself (DC 5V ≥1A). Note: the input voltage over 5V will result in damage.\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.5;\"\u003e2. The U3 PRO won't work well if the current of power adapter is below 1A.\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.4;\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003e3. The 3.5mm and 6.35mm headphone jack can output at the same time. Please don't use RCA and AUX input at the same time, otherwise audio mixing will be caused.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters:\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: stereo L\/R RCA, 3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: 3.5mm\/6.35mm headphone jack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOutput power: ≥1500mW (32Ω)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMatched headphone impedance: 18-600Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax output amplitude voltage: ±14V\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20-30KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR: ≥110DB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput voltage: DC 5V(≥1A)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimension(W*D*H): 68*92*32mm\/ 2.68*3.62*1.26in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight: 164g \/ 0.36lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight: 300g \/ 0.66lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003ePacking List\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"line-height: 1.5; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*U3 PRO Headphone Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406971617512,"sku":"XZ-U3-PRO-US","price":54.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406971650280,"sku":"XZ-U3-PRO-UK","price":54.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406971683048,"sku":"XZ-U3-PRO-DE","price":54.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406971715816,"sku":"XZ-U3-PRO-AU","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406971748584,"sku":"XZ-U3-PRO","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_2a4af575-efe7-4f44-b4ca-18910257f18e.jpg?v=1722241027"},{"product_id":"douk-audio-u5pro-hifi-fully-balanced-headphone-amplifier-mini-stereo-amp-for-xlr-4-4mm-headsets","title":"Douk Audio U5PRO HiFi Fully Balanced Headphone Amplifier Mini Stereo Amp for XLR\/4.4mm Headsets","description":"\u003cdiv\u003e\n\u003cdiv style=\"line-height: 1.5; text-align: left;\"\u003eWarm tips:\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.5; text-align: left;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e1. There is a possibility that the U5Pro won't work normally if the single-ended or false balanced signal (use 3.5mm to XLR cable or switcher)  inputs directly.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e2. Please add the Douk Audio U1 single-ended to balanced adapter between the audio source and the U5pro if the audio source signal is single-ended.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e3. Please make sure the headphones connected is balanced whose interface definition is L+\/L- R+\/R-\/(GND).\u003cbr\u003e4. Without DC 5V power adapter. Recommend using a USB phone charger of DC 5V(≥1A). Input over 5V will result in damage and U5 PRO won't work normally if the current is below 1A.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e【Fully balanced headphone amplifier】Adopting fully balanced amplifier circuit and innovative circuit design with built-in voltage booster circuit, the amplifier circuit of U5 PRO always works at a high voltage of ±14V even if input DC 5V, with wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e【Easily to drive low or high impedance headphones】For a total power output of up to 1500mW under a 32Ω load, U5 PRO can easily power headphones with any low or high impedance (18-600Ω). Volume knob allows you to smoothly adjust volume without any undesirable noise nor any channel imbalances.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e【Classic OP+BUF architecture】U5 PRO adopts OP42 and BUF634, classic OP+BUF architecture, and pure DC amplification circuit, ensuring every note is rendered with outstanding clarity and purity. Designed with four independent paths, it delivers exceptional sound quality, making it an ideal choice for audiophiles.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e【Pure analog design and pluggable op amp】Pure analog amplification circuit and analog control, show you the truest sound, all aspects are in the top-class such as sound field, sound position, details etc. Pluggable op amp socket design, OP42 can be replaced by OP17, AD797, AD843, AD847, and OPA627, convenient to upgrade different op amps to enjoy other sound styles.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e【Most cost-effective amp on the market】Mini size and exquisite appearance, and with low distortion, high power and a pure, uncolored sound, you'll experience subtle details and shocking swings in your music effortlessly. U5 PRO, the best helper for all XLR\/4.4mm headphones to improve their sound quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"line-height: 1.5; text-align: left;\"\u003e\n\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio input: stereo L\/R XLR (3-core, female)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAudio output: XLR (4-core, female)\/4.4mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eOutput power: ≥1500mW(32Ω)\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMatched headphone impedance: 18-600Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax output amplitude voltage: ±14V \u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency response: 20-30KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSNR: ≥110DB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eTHD: 0.005%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eInput voltage: DC 5V (≥1A)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eDimension(W*D*H): 70*82*38mm\/2.76*3.23*1.50in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet weight:172g\/0.38lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage weight: 300g\/0.66lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*U5 PRO Headphone Amplifier\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*USB to DC Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"doukaudio","offers":[{"title":"US","offer_id":47406762361064,"sku":"XZ-U5-PRO-US","price":79.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47406762393832,"sku":"XZ-U5-PRO-UK","price":79.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47406762426600,"sku":"XZ-U5-PRO-DE","price":79.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47406762459368,"sku":"XZ-U5-PRO-AU","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47406762492136,"sku":"XZ-U5-PRO","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/10_c0d4a06b-a56e-4ae5-a634-7eb006436981.jpg?v=1722241452"}],"url":"https:\/\/doukaudibestseller.com\/fr\/collections\/mini-amplifier.oembed","provider":"Douk Audio","version":"1.0","type":"link"}