{"product_id":"class-ab-hifi-vacuum-tube-power-amplifier-12j1s-vacuum-tube-bluetooth-5-0-200w-2-power-home-audio-1943-5200-amplifier","title":"Class AB HIFI Vacuum Tube Power Amplifier 12J1S Vacuum Tube Bluetooth 5.0 200W*2 Power Home Audio 1943+5200 Amplifier","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eCertification\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003eCE,FCC,KC\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eChannels\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003e2 (2.0)\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eControl Method\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003ePush button,Remote\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eMaterial\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003eMetal\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eMaximum Power Per Channel\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003e131-200W\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003eAV-128\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003ckse:widget data-widget-type=\"customText\" id=\"1005000000778164\" type=\"relation\"\u003e\u003c\/kse:widget\u003e\u003c\/div\u003e\n\u003cp style=\"text-align:center;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" align=\"center\"\u003e\u003cspan style=\"color:rgb(231, 76, 60)\"\u003e\u003cspan style='font-family:\"Times New Roman\", Times, serif'\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cstrong\u003e\u003cspan\u003ehifi tube amplifier bluetooth USB lossless decoding remote control power amplifier high power 20 home audio\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e \u003cbr\u003e \u003cspan style=\"font-size:16px\"\u003e\u003cstrong\u003e\u003cspan\u003eProduct Description\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan style=\"font-size:14px\"\u003e\u003cstrong\u003e\u003cspan\u003eConvenient Connection \u0026amp; Operation: Easily Control High-Quality Sound \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003e\u003cstrong\u003e1. Wireless Bluetooth 5.0 Transmission:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e Keeping up with the trend of audio connection, it supports multimedia Bluetooth audio transmission. No cumbersome wiring is required, allowing for quick music sharing and more convenient connection with devices such as mobile phones and tablets.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003e\u003cstrong\u003e2. Genuine Remote Control Operation:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e Equipped with an exclusive genuine remote control, it enables simple and intuitive operation. It can directly control the switching of input signals and the volume adjustment when playing songs from a USB flash drive. Meanwhile, paired with a motorized potentiometer, it can achieve lossless sound quality adjustment, avoiding sound quality loss during the adjustment process.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003e\u003cstrong\u003e3. Multi-Format Lossless Decoding:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e It supports lossless decoding of mainstream audio formats including APE, FLAC, WAV, and MP3. Whether it is lossless music or common compressed formats, it can accurately restore audio details to meet different listening needs.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan style=\"font-size:14px\"\u003e\u003cstrong\u003e\u003cspan\u003eII. Core Sound Quality Assurance: Meticulous Polishing from Components to Effects \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003e\u003cstrong\u003e1. 12J1S Vacuum Tube Preamplifier: \u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003eThe 12J1S vacuum tube is used as the core of the preamplifier adjustment, focusing on optimizing vocal performance, making the vocal output warmer and more delicate, especially suitable for listening to vocal music.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003e\u003cstrong\u003e2. Dual Toroidal Transformers:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e Built-in dual toroidal transformers, whose core advantage lies in the short magnetic circuit. This can deliver a clear and bright sound, while making the soundstage layers more distinct, avoiding noise interference and further improving the purity of sound quality.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003e\u003cstrong\u003e3. 8 Original Toshiba High-End Power Amplifier Tubes:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e The amplifier is equipped with 8 original Toshiba power amplifier tubes, ensuring stable power output. It can guarantee a transparent and impactful sound effect, and is compatible with various types of speakers on the market to meet listening needs in different scenarios.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan style=\"font-size:14px\"\u003e\u003cstrong\u003e\u003cspan\u003eSupported by High-Quality Components: Enhancing the Baseline of Sound Quality in Details \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003e\u003cstrong\u003e1. German Red WIMA Capacitors:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e German Red WIMA capacitors are selected. These capacitors feature fast speed and low loss, enabling the overall sound quality to present a natural and balanced state. Specifically, the sound is clearer, the high frequencies are crystal-clear, the mid-high frequency details are rich and layered, and it can deliver a brilliant mid-high frequency listening experience.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003e\u003cstrong\u003e2. Japanese ELNA Audio-Specific Capacitors:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e Japanese ELNA audio-specific electrolytic capacitors are adopted. Such capacitors are relatively common in many mid-to-high-end audio equipment, especially widely used in high-end Japanese-made audio devices. Their stability and sound quality adaptability have been validated by the market over the long term.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003e\u003cstrong\u003e3. 4700μF Large-Capacity High-End Capacitors:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e Equipped with 4700μF large-capacity capacitors, it has strong filtering and energy storage capabilities. The continuous current required for the operation of the power amplifier mostly relies on capacitor discharge (which can alleviate the impact of current on the bridge rectifier). When paired with a high-power power supply, it can more effectively filter out current noise and low-frequency noise, making the sound quality purer.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003e\u003cstrong\u003e4. Carefully Selected Motorized Potentiometers:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e The carefully selected motorized potentiometers have excellent consistency between the left and right channels. They are not prone to generating noise after long-term use, and their service life is much longer than that of ordinary low-cost potentiometers on the market. Even when operating for a long time, their performance remains stable. Moreover, due to their good sound quality reproduction, they are often used in professional audio equipment such as high-end power amplifiers or preamplifiers.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align:center;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" align=\"center\"\u003e\u003cbr\u003e \u003cbr\u003e \u003cspan style=\"font-size:16px\"\u003e\u003cstrong\u003e\u003cspan\u003eProduct Specifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan\u003e-Power: 200W + 200W \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan\u003eInput Impedance: 47K Ohms \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan\u003eInput Sensitivity: 300mV \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan\u003eSignal-to-Noise Ratio (SNR): ≥80dB \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan\u003eOverload Source Electromotive Force (Tone Bypass): ≥2V \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan\u003eTreble: ±10dB \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan\u003eBass: ±10dB \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan\u003eTotal Harmonic Distortion (1KHz): ≤0.5% \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan\u003eFrequency Response: 20Hz ~ 20KHz ±2dB \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\u003cspan\u003eDimensions: 430mm (Width) × 330mm (Depth) × 122mm (Height) \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;position:relative\" align=\"center\"\u003e\n\u003cspan\u003eNet Weight: 8.5Kg\u003c\/span\u003e\u003cbr\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/S1022fc467eef4b3ea30f329c053fea49T.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/S281535beb4a74b1d99c13b66fe33575fC.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sbc54ee52768a49dab5a646bec927d128I.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sb2f139615f57478ea02e0c234c6d8d2fp.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/S1aa61704d4b7416caea63d34904c8412z.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/S31ead595645b49c79428c9cf50fecd69M.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/Se0f9142a77b24bd69fdf435eee7b3e77f.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/S4beda74d05b340b3b6905c2ad57267a04.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/S94a1caf14e4b4d4d8775878259f80befV.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/S829fdbbcf6184d29b8251c9b398e4585T.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sb033a504ae2f4286ba346904c049dcc4J.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/S6c3b4a69509247bd9c7cf6cbc88519182.jpg?width=750\u0026amp;height=1000\u0026amp;hash=1750\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sda8810b9fce242658e3a0d534e0d4cc9E.jpg?width=750\u0026amp;height=739\u0026amp;hash=1489\" slate-data-type=\"image\"\u003e\u003cimg width=\"1000px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sf24c34bb3c4f4f70b44309091830cb15m.jpg?width=1000\u0026amp;height=376\u0026amp;hash=1376\" slate-data-type=\"image\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center\" align=\"center\"\u003eQ: Can I change my order info? Such as receiving address or item purchased? \u003cbr\u003e\u003cbr\u003e A: Order info cannot be changed after being placed. Please cancel your order and place a new one if order info is incorrect. Otherwise your parcel is going to be shipped according to the initial order info. \u003cbr\u003e\u003cbr\u003e Q: Why isn’t my order being shipped out of China? \u003cbr\u003e\u003cbr\u003e A: If there is no further tracking info after 10 days. It is most likely due to domestic shipping issue. For further support, please contact our customer service. \u003cbr\u003e\u003cbr\u003e Q: Why is my parcel still “delivering”? \u003cbr\u003e\u003cbr\u003e A: International shipment can be time-consuming and your patience is appreciated. Please rest assured if you see no update about your parcel. We use AliExpress shipping methods which can take 15 to 60 days. For further support, please contact our customer service. \u003cbr\u003e\u003cbr\u003e Q: Why do I receive a different product? \u003cbr\u003e\u003cbr\u003e A: Please contact our customer service directly for further support. \u003cbr\u003e\u003cbr\u003e Q: Why do I receive only 1 item while several were purchased in the first place? \u003cbr\u003e\u003cbr\u003e A: One order can possibly be shipped via several parcels with each of them a unique tracking number. Please track them according to the specific tracking number(s). Please contact our customer service directly for further support. \u003cbr\u003e\u003cbr\u003e Q: I clicked “Confirm Goods Received” before the parcel is received. What should I do? \u003cbr\u003e\u003cbr\u003e A: Don’t worry if you clicked it by accident. Your parcel is shipped soonest possible anyway. Simply follow the tracking number for update. A 5-star review is much appreciated upon receiving your parcel. \u003cbr\u003e\u003cbr\u003e Q: What should I do if my order is closed? \u003cbr\u003e\u003cbr\u003e A: Please place a new order with a secure account and payment method. \u003cbr\u003e\u003cbr\u003e Q: What if the product cannot be used? \u003cbr\u003e\u003cbr\u003e A: Please ensure the product is used properly according to the user manual. For further support please contact our customer service directly. \u003cbr\u003e\u003cbr\u003e Q: I haven’t received my parcel yet but it shows “delivered” on the order detail page. What should I do? \u003cbr\u003e\u003cbr\u003e A: Please check with your local post first for the parcel info. For further support, please contact our customer support. \u003cbr\u003e\u003cbr\u003e Q: Why is my parcel returned? \u003cbr\u003e\u003cbr\u003e A: That’s because receiving address or phone number being incorrect or the logistics company cannot ship to your address. Please reach out to our customer service directly if the issue persists.\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Peter's Electronics","offers":[{"title":"AC 220V-230V-A1","offer_id":52688087023898,"sku":"14:350850#AC 220V-230V-A1","price":650.99,"currency_code":"USD","in_stock":true},{"title":"AC 220V-230V-A2","offer_id":52688087056666,"sku":"14:193#AC 220V-230V-A2","price":650.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/8973\/4170\/files\/Se528c3ca40e24a8da11a40ab4d17d5e1v.webp?v=1786544721","url":"https:\/\/peterselectronics.com\/products\/class-ab-hifi-vacuum-tube-power-amplifier-12j1s-vacuum-tube-bluetooth-5-0-200w-2-power-home-audio-1943-5200-amplifier","provider":"Peter's Electronics","version":"1.0","type":"link"}