{"product_id":"nobsound-hifi-bluetooth-vacuum-tube-6p1-6n1-stereo-amp","title":"Nobsound DA7 HiFi Vacuum Tube Power Amplifier with Bluetooth\/RCA\/USB IN","description":"\u003cdiv\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eAuthentic Pure Tube Amplifier: Adopting 4*6P1 tubes for power amplification stage and 3*6N1 for voltage amplification and driver stages, DA7 delivers warm, natural sound with an expansive dynamic range, bringing an organic and immersive listening experience.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-end=\"199\" data-start=\"0\"\u003e\u003cspan\u003eVersatile Input Options: Equipped with dual RCA inputs, a USB port, and Bluetooth, the DA7 enables various audio sources such as phones, tablets, laptops, and more, and features a dedicated input switch knob for seamless switching.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv dir=\"auto\" data-message-model-slug=\"gpt-4o\" data-message-id=\"6f745119-1fe5-4c47-bda5-20122e1c7623\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eFast Digital \u0026amp; Wireless Connectivity: \u003c\/span\u003e\u003cspan\u003eThe DA7 supports USB 3.0 for high-speed audio transmission and superior sound quality. Its dual-mode Bluetooth 5.3\/5.0 ensures fast pairing, stable connections, and high-resolution wireless audio with lossless clarity.  \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-end=\"266\" data-start=\"0\"\u003e\n\u003cspan\u003eDual VU Meters for Real-Time Monitoring: \u003c\/span\u003e\u003cspan\u003eFeaturing two analog VU meters that respond dynamically to the power amplification signal. The warm, rhythmic needle movement adds a classic touch while providing real-time audio monitoring.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli data-is-last-node=\"\" data-end=\"913\" data-start=\"644\"\u003e\u003cspan\u003eHigh-Quality Construction: Featuring an imported wideband EI output transformer, gold-plated pure copper connectors, and a durable steel mesh protective cover that enhances tube safety while ensuring efficient heat dissipation.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eParameters\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBrand: Nobsound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel: DA7\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio input: Bluetooth \/ Stereo RCA \/ USB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio output: Banana speaker jacks \/ Stereo RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTube model: 6P1*4+6N1*3\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRated output power: 12W×2 (4Ω); 8W×2 (8Ω)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency response: 10Hz-40KHz (-3dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTHD: 1% (1KHz)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSNR: 85dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput sensitivity: 300mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput impedance: 100KΩ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOutput impedance: 4Ω \/ 8Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower consumption: 150W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMax storage of U-disk: 128G\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupported file system of U-disk: FAT32 \/ ExFAT\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupported formats of U-disk: MP3 \/ WMA \/ APE \/ FLAC \/ AAC \/ WAV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput voltage: AC 220V IN\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions (W*D*H): 318*305*155mm \/ 12.52*12.01*6.10in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePackage dimensions (W*D*H): 410*350*220mm \/ 16.14*13.78*8.66in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNet weight: 7.6kg \/ 16.75lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePackage weight: 8.5kg \/ 18.74lb\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan\u003ePacking list\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1* DA7 Tube Amplifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Power Cord\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1* Bluetooth Antenna\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"US","offer_id":47571590119656,"sku":"DZ105-US","price":349.99,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":47571590152424,"sku":"DZ105-UK","price":349.99,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":47571590185192,"sku":"DZ105-DE","price":349.99,"currency_code":"USD","in_stock":true},{"title":"AU","offer_id":47571590217960,"sku":"DZ105-AU","price":469.99,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":47571590250728,"sku":"DZ105","price":469.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_a5ec85c3-e364-45c0-936d-5ccf0362368f.jpg?v=1754642778","url":"https:\/\/doukaudibestseller.com\/zh\/products\/nobsound-hifi-bluetooth-vacuum-tube-6p1-6n1-stereo-amp","provider":"Douk Audio","version":"1.0","type":"link"}