{"title":"Hi-Fi \u0026 Linear","description":"\u003cp\u003eBrowse Hi-Fi and linear amplifier boards for detailed, high-quality audio builds. Explore Class A, traditional Hi-Fi, and high-power amplifier designs for DIY audio systems.\u003c\/p\u003e","products":[{"product_id":"hifi-1500w-powerful-final-mono-amplifier-board-ttc5200-tta1943-tube-heatsink","title":"Hifi 1500W Powerful Final Mono Amplifier Board + TTC5200 TTA1943 Tube Heatsink","description":"\u003cbr\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eHifi 1500W Powerful Final Mono Amplifier Board + TTC5200 TTA1943 Tube and Heatsink\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eTechnical parameters:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"white-space: normal;\"\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eVoltage: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eDC Dual 40-135V, \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003erecommended DC dual 100V, power \u0026gt; 900W\u003c\/span\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eOutput Power: 1500W\u003c\/span\u003e\u003c\/div\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eFrequency Response:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e+0 dB\/-0.8dB (20Hz ~ 20KHz)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eTotal harmonic distortion\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u0026lt;0.1% 8Ω 20Hz ~ 20KHz\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eSNR: (20Hz - 20KHz)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eA-weighted, full power output\u0026gt; 98dB\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eBear instantaneous response\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e25V\/uS\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eAmp board\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e305 x 78mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePCB size: slurcock\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e143 x 78mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eProduct Description:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eDamping 8Ω: 10Hz-400Hz:\u0026gt; 200\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eCrosstalk between channels: 1kHz: -76 dB \/ 20kHz:-58dB\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eInput impedance: 20KΩ (Balanced) \/ 10KΩ (Unbalanced)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eInput Sensitivity: 1.25V\/4Ω rated power\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eInput Voltage:DC Dual 40-135V (recommend Dual DC100V)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePCB size: slurcock:143 x 78mm, amp board: 305 x 78mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eProtection power supply: AC 12-18V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eRecommend transformer:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eMain voltage: Dual DC 40V-135V(The voltage obtained by rectifying and filtering the output voltage of a transformer)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eSecondary voltage: Single AC 12V-18V (independent power for circuit protection)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eThis board will be test well before sending.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eNote:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e1. The power supply for the circuit protection must be used independently and should not be shared with other boards\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e2. Please make sure to turn the volume to the minimum before testing, and then gradually increase your volume according to your equipment.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e3. If working at high power for a long time, it is necessary to add a cooling fan.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e4. Please contact us for connection diagram!\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePackage:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e1*Hifi 1500W Powerful Stage Mono Amplifier Board with 28 tubes (14pcs TTC5200 14pcs TTA1943)  + heatsink\u003c\/span\u003e\u003c\/p\u003e\u003c!--[Datacaciques code end]--\u003e\u003cstyle type=\"text\/css\"\u003e.dc_tracker_img{display:none;}.dc_tracker_img:last-of-type{display:block;}p:empty+hr{display:none;}hr+span.ebay,hr+*\u003espan.ebay{display:none;}\u003c\/style\u003e\u003cstyle type=\"text\/css\"\u003e.dc_tracker_img{display:none;}.dc_tracker_img:last-of-type{display:block;}p:empty+hr{display:none;}hr+span.ebay{display:none;}\u003c\/style\u003e","brand":"Lilly Electronics","offers":[{"title":"Default Title","offer_id":40774638534785,"sku":"KXYX-1500W+HS","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/918f88daf9781fcda386bf243c8d1209.jpg?v=1780639844"},{"product_id":"diy-accuphase-e210-modified-power-amplifier-board","title":"DIY Accuphase E210 Modified Power Amplifier Board","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eDIY Accuphase E210 Modified Power Amplifier Board\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eOutput Rower: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eRMS :50-150W 8 ohms\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eVOLTAGE GAIN: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e18 times\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eFront And Rear Stage Combined Output gain: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e100 times\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eFrequency Response Range: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e20HZ -20KHZ (-0.1 DB).\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eTHD+N: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e0.005% - 0.008%\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eSR: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e20V\/US\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eDamping Coefficient: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e100\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eRadiator Recommended Size:\u003c\/span\u003e\u003cspan style=\"white-space: pre;\"\u003e\t\u003c\/span\u003e \u003cspan style=\"text-wrap-mode: nowrap;\"\u003eMono iIs greater than 200Grams\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eSupply VoltageRange:\u003c\/span\u003e \u003cspan style=\"text-wrap-mode: nowrap;\"\u003eDC ±25V ~ DC ±55V recommended voltage DC ± 40V.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eAmplifier Wiring Instructions:\u003cspan style=\"white-space:pre\"\u003e\t\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePower supply VCC+, GND, VEE- A total of three line power supplies.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eInput signal INPUT + - , the input signal has a total of 2 lines.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eOutput OUT+ Connect the speaker positive, GND to the speaker ground.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePCB size: 82*76MM\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePCB mounting hole distance: 74MM left and right holes. Upper and lower hole spacing 69MM\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePower tube lateral installation distance: 22MM\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eNote:\u003cspan style=\"white-space:pre\"\u003e\t\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eThe finished boards are all debugged. It is generally not recommended to adjust the quiescent current again during use.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePackage:\u003cspan style=\"white-space:pre\"\u003e\t\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e1* Power Amplifier Board\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c!--[Datacaciques code end]--\u003e\u003cstyle type=\"text\/css\"\u003e.dc_tracker_img{display:none;}.dc_tracker_img:last-of-type{display:block;}p:empty+hr{display:none;}hr+span.ebay,hr+*\u003espan.ebay{display:none;}\u003c\/style\u003e","brand":"Lilly Electronics","offers":[{"title":"Default Title","offer_id":40774647971969,"sku":"LJM-E210","price":48.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/aa2bb99d73c4f358ceea00b60716c3d1.jpg?v=1780642332"},{"product_id":"accuphase-e405-modified-front-and-rear-merge-power-amplifier-board","title":"Accuphase E405 Modified Front and Rear Merge Power Amplifier Board","description":"\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eE405-MOD Modified Front and Rear Merged Power Amplifier Loose Parts Or Finished Product Board\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eSpecification:\u003cspan style=\"white-space:pre\"\u003e\t\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePower supply voltage:+-25V to+-55V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eMaximum output power: 150W 8 R\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eVoltage gain: 90\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eFrequency response: 20HZ-0.05DB\/20KHZ -0.15DB.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eTHD+N:\u0026lt;0.02% 50W8R\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eUsing imported original NE5532 as the front-end amplifier, DC servo DC SERVER circuit. The output power tube can be paired with the original KTB817 and KTD1047 pair tubes.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePackage:\u003cspan style=\"white-space:pre\"\u003e\t\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e1x Power Amplifier\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003chr\u003e\u003cspan class=\"ebay\"\u003eOn Jun 20, 2023 at 18:37:12 PDT, seller added the following information:\u003c\/span\u003e\u003cp\u003e\u003c!--[Datacaciques code start,code,don't modify it]--\u003e\u003cstyle type=\"text\/css\"\u003e.dc_tracker_img{display:none;}.dc_tracker_img:last-of-type{display:block;}p:empty+hr{display:none;}hr+span.ebay,hr+*\u003espan.ebay{display:none;}\u003c\/style\u003e\u003c\/p\u003e\u003c!--[Datacaciques code end]--\u003e","brand":"Lilly Electronics","offers":[{"title":"Dual Channel Finished 2 Board","offer_id":40774650003585,"sku":"LJM-E405-L9-Dual","price":43.18,"currency_code":"USD","in_stock":true},{"title":"Dual Channel Kit 2 Board","offer_id":40774650036353,"sku":"LJM-E405-L9-Dual-Kit","price":35.33,"currency_code":"USD","in_stock":true},{"title":"Mono Channel Finished 1 Board","offer_id":40774650069121,"sku":"LJM-E405-L9-Mono","price":25.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/cad60d8f133f4acba52072545f1b113f.jpg?v=1780643565"},{"product_id":"ljm-l20se-350w-350w-4ohm-tta1943-ttc5200-kit-amplifier-board","title":"LJM L20SE 350W+350W 4ohm TTA1943 TTC5200 Kit Amplifier Board","description":"\u003cdiv\u003e\n\u003cp style=\"font-family: Arial; font-size: large; margin: 0px; padding: 0px;\"\u003e\u003cb style=\"font-family: sans-serif; font-size: 16px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif; font-size: 18px;\"\u003eSpecification:\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cspan style=\"font-family: arial, helvetica, sans-serif; font-size: 18px;\"\u003e \u003cbr\u003e1.Designed the L20 post-amplifier.\u003cbr\u003e2.PCB size: 113 * 80 MM\u003cbr\u003e3.With excellent control, low distortion, wide range of voltage support.\u003cbr\u003e4.High-power high-current output load.\u003cbr\u003e5.Each channel 2 of original power tubes TTA1943\/TTC5200, the maximum load current of 20A.\u003cbr\u003e6.Voltage support a wide range of installation of each channel can be any two pairs, four pairs of high-power tube.\u003cbr\u003e7.Standard suite of high-power tube per channel 2.\u003cbr\u003e8.Power :200W8R 350W4R DC ±65V\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeature:\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003ePerformance parameters:\u003cbr\u003ePower voltage: DC ±15V to DC \u003cspan style='font-family: \"Times New Roman\"; font-size: large;'\u003e±\u003c\/span\u003e65V.\u003cbr\u003e\u003c\/span\u003e\u003cp\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif; font-size: 18px;\"\u003eThe recommended DC voltage is+-40V.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif; font-size: 18px;\"\u003eThe recommended power transformer is Dual 15V to Dual 40V 200VA.\u003cbr\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif; font-size: 18px;\"\u003eAll resistors are made of precision copper pins with 1% high precision, including high precision output resistors.Double-sided FR4 PCB 2MM thick plate, 75 UM thick copper wire.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial; font-size: large; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif; font-size: 18px;\"\u003e\u003cstrong\u003ePackage:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial; font-size: large; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif; font-size: 18px;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial; font-size: large; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif; font-size: 18px;\"\u003e1 x L20SE 350W+350W 4ohm TTA1943 TTC5200 Kits\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"font-family: 'Times New Roman'; font-size: large;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px;\"\u003e \u003c\/p\u003e\n\u003cp style=\"font-family: Arial; font-size: 14pt; margin: 0px; padding: 0px;\"\u003e\u003cspan style='font-family: \"Times New Roman\"; font-size: x-large; line-height: 21px;'\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003c\/p\u003e\u003chr\u003e\u003cspan class=\"ebay\"\u003eOn Feb 16, 2025 at 19:16:28 PST, seller added the following information:\u003c\/span\u003e\u003cp\u003e\u003c!--[Datacaciques code start,code,don't modify it]--\u003e\u003cstyle type=\"text\/css\"\u003e.dc_tracker_img{display:none;}.dc_tracker_img:last-of-type{display:block;}p:empty+hr{display:none;}hr+span.ebay,hr+*\u003espan.ebay{display:none;}\u003c\/style\u003e\u003c\/p\u003e\u003cbr\u003e\u003c!--[Datacaciques code end]--\u003e","brand":"Lilly Electronics","offers":[{"title":"Default Title","offer_id":40774653673601,"sku":"LJM-KIT-L20SE","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/69195b35204e95eba1ec578f493ce07e.jpg?v=1780646429"},{"product_id":"2pcs-quad405-mono-audio-power-amplifier-board-dc-30v-to-50v-3a","title":"2pcs QUAD405 Mono Audio Power Amplifier Board DC +\/-30V to +\/-50V (3A)","description":"\u003cdiv\u003e \u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003e\u003cspan data-slate-node=\"text\"\u003e\u003cspan data-slate-leaf=\"true\" data-sent-id=\"9XwYkenEAP\"\u003e\u003cspan data-slate-string=\"true\"\u003eDescription:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003e\u003cspan data-slate-node=\"text\"\u003e\u003cspan data-slate-leaf=\"true\" data-sent-id=\"VEq1nax7A0\"\u003e\u003cspan data-slate-string=\"true\"\u003ePCB size: 132 mm x 90 mm x 45mm(L, W, H).\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003e\u003cspan data-slate-node=\"text\"\u003e\u003cspan data-slate-leaf=\"true\" data-sent-id=\"jL5RxD77qo\"\u003e\u003cspan data-slate-string=\"true\"\u003eVoice: DC +\/- 30V to DC +\/- 50V (3A); (100W 8R use +-50V).\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003e\u003cspan data-slate-node=\"text\"\u003e\u003cspan data-slate-leaf=\"true\" data-sent-id=\"DjqgP3DEAe\"\u003e\u003cspan data-slate-string=\"true\"\u003ePower: 50-100 W 8 R.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003e\u003cspan data-slate-node=\"text\"\u003e\u003cspan data-slate-leaf=\"true\" data-sent-id=\"WP58ZMlJq7\"\u003e\u003cspan data-slate-string=\"true\"\u003eThe signal amplification transistor adopts original BC556, 5551, 5401 audio dedicated signal tubes\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003e\u003cspan data-slate-node=\"text\"\u003e\u003cspan data-slate-leaf=\"true\" data-sent-id=\"oaAbbMnJAJ\"\u003e\u003cspan data-slate-string=\"true\"\u003eThe inductance is measured manually by a precise digital bridge, with an accuracy of 0.01UH 0.1%.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003eThe high-power tube is the original MJ15024.\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003e\u003cspan data-slate-node=\"text\"\u003e\u003cspan data-slate-leaf=\"true\" data-sent-id=\"yLwv0veZA4\"\u003e\u003cspan data-slate-string=\"true\"\u003eNote:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003e\u003cspan data-slate-node=\"text\"\u003e\u003cspan data-slate-leaf=\"true\" data-sent-id=\"pEq6JGxDqV\"\u003e\u003cspan data-slate-string=\"true\"\u003eThis board is often used in pairs. We recommend you buy one or more pairs of these boards.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003e \u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\"\u003e\u003cspan data-slate-node=\"text\"\u003e\u003cspan data-slate-leaf=\"true\" data-sent-id=\"64wkDNvLq9\"\u003e\u003cspan data-slate-string=\"true\"\u003ePackage:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style=\"position: relative;\" data-slate-node=\"element\" data-slate-fragment=\"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\"\u003e\u003cspan data-slate-node=\"text\"\u003e\u003cspan data-slate-leaf=\"true\" data-sent-id=\"k15aa3lr5d\"\u003e\u003cspan data-slate-string=\"true\"\u003e1 pair QUAD405 audio power amplifier board with MJ15024\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\n\u003cp style=\"font-size: 14pt; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"font-family: Arial; font-size: large;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14pt; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"font-family: Arial;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14pt; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"font-family: Arial; font-size: x-large;\"\u003e\u003cspan style=\"line-height: 21px;\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14pt; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"font-family: Arial; font-size: x-large;\"\u003e\u003cspan style=\"line-height: 21px;\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003c\/p\u003e\u003chr\u003e\u003cspan class=\"ebay\"\u003eOn Jun 15, 2026 at 01:28:08 PDT, seller added the following information:\u003c\/span\u003e\u003cp\u003e\u003c!--[Datacaciques code start,code,don't modify it]--\u003e\u003cstyle type=\"text\/css\"\u003e.dc_tracker_img{display:none;}.dc_tracker_img:last-of-type{display:block;}p:empty+hr{display:none;}hr+span.ebay,hr+*\u003espan.ebay{display:none;}\u003c\/style\u003e\u003c\/p\u003e\u003cdiv class=\"dc_tracker_img\" style=\"text-align:center;margin-top:25px\"\u003e\u003cbr\u003e\u003c\/div\u003e\u003c!--[Datacaciques code end]--\u003e","brand":"Lilly Electronics","offers":[{"title":"Default Title","offer_id":40785583767681,"sku":"LJM-QUAD405*2+MJ15024-Angle","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/e5b9d48ac0c0c3175f07beed003dc4b9.jpg?v=1781601141"},{"product_id":"stk4221ii-audio-power-amplifier-ic-module","title":"STK4221II Sanyo 80W + 80W Stereo AF Audio Power Amplifier IC Module","description":"\u003cdiv class=\"dc_tracker_img\" style=\"text-align: center; margin-top: 25px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan\u003eProduct Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan\u003eSTK4221II Stereo AF Power Amplifier Module\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\" style=\"text-align: left;\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSTK4221II\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a thick-film hybrid \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2-channel AF audio power amplifier IC\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e designed for stereo audio amplifier applications using a split power supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\" style=\"text-align: left;\"\u003e\u003cspan\u003eWith an output rating of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e80W + 80W minimum\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0.4% THD\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the STK4221II is suitable for repairing compatible stereo amplifiers, audio systems, receivers, and other audio equipment that originally uses this part number.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePart Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e STK4221II\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eDevice Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e AF Audio Power Amplifier\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eConfiguration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2-Channel \/ Stereo\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOutput Power:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 80W + 80W minimum\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTotal Harmonic Distortion (THD):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 0.4%\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePower Supply Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Split Power Supply\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eRecommended Supply Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ±45V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eRecommended Load:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 8Ω\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTechnology:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Thick-Film Hybrid IC\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBuilt-In Muting Circuit:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Yes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePackage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Power Amplifier Module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCondition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e New\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\" style=\"text-align: left;\"\u003e\u003cspan\u003eSuitable for compatible:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\u003cspan\u003eStereo audio amplifiers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHome audio systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio receivers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower amplifier circuits\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVintage audio equipment repair\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eElectronic audio repair projects\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplacement of damaged STK4221II amplifier modules\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan\u003eCompatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\" style=\"text-align: left;\"\u003e\u003cspan\u003ePlease check the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSTK4221II part number, pin configuration, electrical specifications, and your equipment service manual\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\" style=\"text-align: left;\"\u003e\u003cspan\u003eElectronic components with similar STK part numbers may have different electrical characteristics. Match the exact part number and specifications required by your equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan\u003ePackage Includes\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cspan\u003e1 × STK4221II AF Audio Power Amplifier Module IC\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--[Datacaciques code end]--\u003e\n\u003cstyle type=\"text\/css\"\u003e.dc_tracker_img{display:none;}.dc_tracker_img:last-of-type{display:block;}p:empty+hr{display:none;}hr+span.ebay,hr+*\u003espan.ebay{display:none;}\u003c\/style\u003e","brand":"Lilly Electronics","offers":[{"title":"Default Title","offer_id":40858217152641,"sku":"STK4221II","price":9.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/STK4221II_1.png?v=1787091991"},{"product_id":"quad606-quad707-hifi-finished-power-amplifier-dc-25v-55v","title":"QUAD606 QUAD707 Finished Power Amplifier Completed HIFI Post‑Amp DC ±25V‑±55V Power Supply","description":"\u003ch1\u003eProduct Description\u003c\/h1\u003e\u003cp\u003eImitation of Classic British QUAD606 \/ QUAD707 Stereo Post‑Amplifier Finished Machine, a high‑fidelity power amplifier built for audiophile music lovers. Fully assembled, tested and integrated with power transformer, speaker protection circuit and delay‑start function, ready‑to‑use for your home Hi‑Fi audio system.\u003c\/p\u003e\u003ch2\u003eMain Specifications of Complete Amplifier Chassis\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eStereo Output Power: 130W × 2 @ 8Ω\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eBuilt‑in 300VA Pure Copper Power Transformer, stable and sufficient power supply\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eSpeaker Protection Circuit \u0026amp; Power‑on Delay Startup Function, effectively protect your speakers from surge damage\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eVolume Control: Original Japanese ALPS 27 Potentiometer, smooth adjustment, low noise and long service life\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eOverall Dimension (W × H × D): 240mm × 120mm × 271mm\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e✅QUAD606 Finished Post‑Amplifier\u003cbr\u003e\n\u003c\/h2\u003e\u003cp\u003eHigh‑fidelity finished mono power amplifier board, classic QUAD606 circuit, excellent for DIY audiophile audio system, home theater, speaker upgrade project. Built and fully tested, ready‑to‑use, no soldering work required.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eWide DC dual‑rail power supply: ±25V~±55V DC, \u003cstrong\u003eRecommended working voltage: ±45V DC\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003ePowerful output: 125W @ 8Ω, 250W @ 4Ω per channel\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eUltra‑low distortion: THD+N ＜ 0.01%, delivers transparent, warm and detailed sound performance\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eProfessional‑tested frequency response (APSYS2): 20Hz‑0dB, 10Hz‑0.3dB, 10kHz‑0.1dB, 20kHz‑0.3dB; Slew‑rate:25V\/μs (Oscilloscope tested)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eFixed gain: 51.5 times\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eOutput stage quiescent current: 0mA; Mono static current: approx.100mA\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003ePremium components: Original TLC271 high‑performance operational amplifier; 6pcs 2SD718 (140V, 10A,100W) power transistors per channel\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003ePCB + corner aluminum heatsink mounting size: 90mm × 100mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eCooling suggestion: Single‑channel radiator weight ≥ 500g (under ±45V)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cblockquote\u003e\u003cp\u003eNotice: Heatsink is NOT included. You need to prepare extra qualified radiator for long‑time stable operation.\u003c\/p\u003e\u003c\/blockquote\u003e\u003chr\u003e\u003ch2\u003e✅QUAD707 Finished Post‑Amplifier\u003c\/h2\u003e\u003cp\u003eHigh‑end finished mono HIFI power amplifier, classic QUAD707 circuit design, perfect upgrade solution for audiophile home audio setup. Pre‑assembled \u0026amp; well‑tested, plug‑and‑play after power supply and speaker connection.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eWide DC dual‑rail power supply: ±25V~±55V DC, \u003cstrong\u003eRecommended working voltage: ±45V DC\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003ePowerful output: 125W @ 8Ω, 250W @ 4Ω per channel\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eUltra‑low distortion: THD+N ＜ 0.01%, clean audio output, restore real music details\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eProfessional‑tested frequency response (APSYS2): 20Hz‑0dB, 10Hz‑0.3dB, 10kHz‑0.1dB, 20kHz‑0.3dB; Slew‑rate:25V\/μs (Oscilloscope tested)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eFixed gain: 51.5 times\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eOutput stage quiescent current: 0mA; Mono static current: approx.100mA\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003ePremium components: Original TLC271 high‑performance operational amplifier; 6pcs 2SD718 (180V, 10A,100W) power transistors per channel\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003ePCB dimension: 50mm × 145mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eCooling suggestion: Single‑channel radiator weight ≥ 500g (under ±45V)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cblockquote\u003e\u003cp\u003eNotice: Heatsink is NOT included. External sufficient‑weight radiator is required to avoid overheating during long‑hour playback.\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"http:\/\/img2.tongtool.com\/s\/017012\/2026-08\/1232122078870769664.jpg\" title=\"\" alt=\"微信图片_2026-08-26_165826_075.jpg\"\u003e\u003cbr\u003e\u003cimg src=\"http:\/\/img2.tongtool.com\/s\/017012\/2026-08\/1232122211729408000.jpg\" title=\"\" alt=\"O1CN01Nh3uxG2Fsk5PEAFqF_!!36508936.jpg\"\u003e\u003cbr\u003e\u003cimg src=\"http:\/\/img2.tongtool.com\/s\/017012\/2026-08\/1232122328683380736.jpg\" title=\"\" alt=\"O1CN01U41IdK2Fsk5PE8JJo_!!36508936.jpg\"\u003e\u003cbr\u003e\u003cimg src=\"http:\/\/img2.tongtool.com\/s\/017012\/2026-08\/1232122115793227776.jpg\" title=\"\" alt=\"O1CN010YM2Ew2Fsk5NyBdIG_!!36508936.jpg\"\u003e\u003cbr\u003e\u003cimg src=\"http:\/\/img2.tongtool.com\/s\/017012\/2026-08\/1232122418529701888.jpg\" title=\"\" alt=\"O1CN01Gi1u4T2Fsk5SecN9U_!!36508936.jpg\"\u003e\u003c\/p\u003e\u003c\/blockquote\u003e","brand":"Lilly Electronics","offers":[{"title":"QUAD606","offer_id":40872755593345,"sku":"LJM-QUAD606-Finished","price":417.0,"currency_code":"USD","in_stock":true},{"title":"QUAD707","offer_id":40872755626113,"sku":"LJM-QUAD707-Finished","price":436.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/1bf48f86d9d4d81567f8e10db437822f.jpg?v=1787736561"},{"product_id":"su50-hi-fi-pure-class-a-power-amplifier-board-kit-dual-boards-with-balanced-input","title":"SU50 Pure Class‑A High‑Power Amplifier Board Kit, 2 Boards, Balanced Input","description":"\u003ch1\u003eDescription\u003c\/h1\u003e\u003ch2\u003eSU50 Pure Class‑A High‑Power Amplifier Board Kit (1 Set‑2 Boards) | Balanced Input\u003c\/h2\u003e\u003cp style=\"line-height: 2em;\"\u003eBuild your premium‑grade Hi‑Fi stereo amplifier with our SU50 Class‑A power amplifier board kit. This high‑performance combined amplifier features double‑sided thickened gold‑plated FR4 PCB, 2‑mm‑thick substrate and 70‑μm copper foil, delivering ultra‑stable circuit performance and excellent signal transmission.\u003c\/p\u003e\u003cp style=\"line-height: 2em;\"\u003eBuilt‑in multi‑protection speaker circuit covers delayed startup, mid‑point voltage protection and over‑current protection to safeguard your speakers effectively. Adopting heavy‑current wiring and tree‑shaped grounding design, the board achieves an ultra‑high signal‑to‑noise ratio for clean, low‑noise audio output.\u003c\/p\u003e\u003ch3\u003eCore Components\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eOutput Transistor: 3 pairs of brand‑new genuine 2SC3264 \/ 2SA1295 audio‑specific power tubes per channel, idle current: 100mA per tube\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eDrive Tube: 2SA1837 \/ 2SC4793\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eOp‑amp (Optional): LME49720NA or JRC4580DD\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eCoupling Capacitor: Non‑polarized polypropylene MKP capacitor\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eResistor: 718 factory metal‑film resistor\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eElectrolytic Capacitor: High‑temperature resistant electrolytic capacitor\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eRelay: Original Ω‑dragon 16A contact relay\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eAudio Input: Supports balanced input for improved sound quality\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAmplifier Board Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eBoard Dimension: 240mm × 100mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eWorking Voltage: DC ±50V\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eOutput Power\n • Class‑A: 30W+30W\n • Class‑AB: 150W+150W @ 8Ω, 300W+300W @ 4Ω\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSU50 Rectifier \u0026amp; Filter Power Supply Board\u003c\/h3\u003e\u003cp\u003eComes matched for your stereo build. Double‑sided gold‑plated FR4 PCB (2mm substrate, 70U copper foil). Equipped with Xiantong 30A fast‑recovery rectifier diodes, it can hold up to 4 capacitors with a maximum diameter of 35 mm.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003eIncluded Parts: 4pcs brand‑new genuine 63V 10000UF electrolytic capacitors\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"line-height: 2em;\"\u003ePower Board Size: 103mm × 72mm\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cblockquote\u003e\u003cp\u003eNote: One set contains 2 amplifier boards, enough for a complete stereo amplifier system.\u003c\/p\u003e\u003c\/blockquote\u003e\u003ch3\u003eImportant Notice\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eThis is a loose‑component DIY kit. Soldering assembly is required.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eCircuit schematic diagrams are \u003cstrong\u003eNOT provided\u003c\/strong\u003e for this amplifier board. Please do not contact us to request schematics. Do not purchase if you cannot accept this condition.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003ePerfect for Hi‑Fi audiophile DIY projects, home stereo audio builds and custom high‑fidelity amplifier construction.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Lilly Electronics","offers":[{"title":"4580DD kit Without Power Tube","offer_id":40873942286465,"sku":"YS-SU50-4580DD-Kit","price":83.7,"currency_code":"USD","in_stock":true},{"title":"4580DD Finished Board Without Power Tube","offer_id":40873942319233,"sku":"YS-SU50-4580DD-FIN‑BD","price":133.0,"currency_code":"USD","in_stock":true},{"title":"Finished Board 4580DD Kit","offer_id":40873942352001,"sku":"YS-SU50-4580DD-Full-Kit","price":190.0,"currency_code":"USD","in_stock":true},{"title":"Finished Board+4580DD OP Amp","offer_id":40873942384769,"sku":"YS-SU50-4580DD-FIN‑BD","price":248.0,"currency_code":"USD","in_stock":true},{"title":"LME49720NA Kit Without Power Tube","offer_id":40873942417537,"sku":"YS-SU50-49720NA-Kit","price":93.0,"currency_code":"USD","in_stock":true},{"title":"LME49720NA Finished Board Without Power Tube","offer_id":40873942450305,"sku":"YS-SU50-49720NA-FIN‑BD","price":143.0,"currency_code":"USD","in_stock":true},{"title":"Finished Board LME49720NA Kit","offer_id":40873942483073,"sku":"YS-SU50-49720NA-Full-Kit","price":210.0,"currency_code":"USD","in_stock":true},{"title":"Finished Board LME49720NA OP Amp","offer_id":40873942515841,"sku":"YS-SU50-49720NA-FIN‑BD","price":273.0,"currency_code":"USD","in_stock":true},{"title":"Without 4 Electrolytic Capacitor Kits","offer_id":40873942548609,"sku":"YS-SU50-NO-Cap-Kit","price":14.5,"currency_code":"USD","in_stock":true},{"title":"Complete Power Board Kit (kits parts)","offer_id":40873942581377,"sku":"YS-SU50-63V10000UF-Kit","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Finished Board (Welded)","offer_id":40873942614145,"sku":"YS-SU50-63V10000UF-FIN‑BD","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/9bca68405ac72cc75a1d8fb604ae2ad4.jpg?v=1787815204"}],"url":"https:\/\/www.lilly-electronics.com\/collections\/hifi-linear-amplifiers.oembed","provider":"Lilly Electronics","version":"1.0","type":"link"}