{"product_id":"aiyima-audio-a3001-tpa3255-300w-subwoofer-amplifier-hifi-mono-power-class-d-digital-amp-for-passive-speaker-home-theater-diy","title":"AIYIMA Audio A3001 TPA3255 300W Subwoofer Amplifier HIFI Mono Power Class D Digital AMP for Passive Speaker Home Theater DIY","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAiyima\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCertification\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eCE,FCC,RoHS\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChannels\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaximum Power Per Channel\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAbove 200W\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eA3001\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003ckse:widget data-widget-type=\"customText\" id=\"22371806\" type=\"relation\"\u003e\u003c\/kse:widget\u003e\u003c\/div\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H1bfa359c30c846a3b825b5274aa4dcf8Y.jpg\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eParameters:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eMaximum output power: 300W*1 4Ω load\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003ePower amplifier chip: TPA3255D2\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eTone chip: NE5532\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eDC chip: 2596\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eFull frequency frequency response: 20Hz-20kHz (±3dB)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eSpeaker matching impedance: 4~8Ω\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eDistortion: 0.03% when outputting 1W\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eWorking voltage: DC24-48V\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eSignal to noise ratio: ≥106dB\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eInput sensitivity: 0.775V\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eDimensions (L*W*H): 120*117.5*36MM (without protruding knob section)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eBass cutoff frequency adjustment range: 40-300Hz\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eBass attenuation slope: -12dB Slope\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003ePanel description:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e1.Power switch\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e2. Power indicator \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e3. Full\/bass operation mode switch.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e4. Bass up frequency adjustment knob (knob is only available in bass mode)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e5. Volume knob (clockwise volume increases, counterclockwise volume decreases)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e6. Audio input interface (such as CD, DAC decoder, mobile phone, TV, etc., red to the right channel input, white to the left channel input)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e7. Low-pass output (connected to the active subwoofer, synchronized output with the amplifier)8. Speaker interface (red to positive, black to negative)9. Power interface (DC power supply must not exceed 48V)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eOperation Steps:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e1. Make sure the VOL knob is at its minimum.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e2. Connect the speaker according to the back panel interface indication, pay attention to distinguish between positive and negative.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e3. Connect the audio source you want to use.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e4. Connect the power supply.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e5. Select the desired working mode\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e6. Press the power button.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e7. Turn the knob clockwise to select the desired volume level.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e8. In the SUB mode, the bass cutoff frequency can be changed by adjusting the SUB FREQ knob.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eFLAT\/SUB Switch:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eWhen ''FLAT\/SUB'' is switched to ''SUB'', SPK OUT connects to the passive subwoofer.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eWhen ''FLAT\/SUB'' is switched to ''FLAT'', SPK OUT connects to the full range speaker.The SUBOUT is connected to active subwoofer.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eNote:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e1. Do not open the case privately. Improper handling may result in electric shock.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e2. Please use the switching power supply of the regular manufacturer, otherwise the risk of damage to the machine will be damaged.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e3. Do not place the machine in a high temperature and high humidity environment.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003ePackage included:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e1*Amplifier board\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e1*Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e1*power adapter(Optional)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hc314913e51fe437aaf9349384f887685A.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7375517c95b34104be58437b39196493i.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3ecd6a2e8e274601bafcfe79c63a877dZ.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sdb5c357baf0b489193c22c4d5feb96acC.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3d365c82792240138a5427182e15034eY.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd5888ac7bf084f74a9da905d8cca3fd8U.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S97632a35a38f4365a71b5ee9e3d3ed61t.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb1c886bb3e1a412cbceeca890c126e88m.jpg\" slate-data-type=\"image\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S26a517b291b242e5863b812a9a06b06fY.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S73eccb9cd15e4497ba50e7296fc56a19d.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"HHrumurz.com","offers":[{"title":"no power plug \/ United Kingdom","offer_id":43900692791374,"sku":"14:193#no power plug;200007763:201336105","price":517.68,"currency_code":"USD","in_stock":true},{"title":"no power 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