{"title":"Discrete Component Amplifier Kits \u0026 Finished Boards","description":"","products":[{"product_id":"a60-current-feedback-amplifier-board-kit-8-pair-parallel-design-dual-channel-hi-fi-inspired-by-accuphase-a60","title":"A60+ Current-Feedback Amplifier Board Kit | 8-Pair Parallel Design, Dual-Channel Hi-Fi | Inspired by Accuphase A60","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-12-3-1018x1536.jpg_20260331152543.jpg?v=1774942638\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe A60+ board is an improved version based on the previously successful A60 design. Key enhancements include an increased number of output transistors (supporting up to 16 pairs \/ 32 pieces per channel), providing greater driving capability and the option to be adjusted to operate in Class A mode. Furthermore, the rectification section has been upgraded with a 120A low-resistance, high-speed rectifier, resulting in superior dynamic response.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Accuphase A60 was a flagship amplifier of its generation, offering excellent density in both high and low frequencies, superb control, and outstanding detail and layering. Its circuit features a fully symmetrical architecture with current-feedback. A key characteristic of this design is the use of complementary push-pull circuitry from the input stage all the way to the output stage, enabling an exceptionally high slew rate of hundreds of volts per microsecond. This results in excellent drive capability for capacitive loads and overall sound quality that surpasses the earlier A2 model.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eMaterial Selection Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eDifferent transistor pairings yield distinct tonal characteristics. Please note that this is a \u003cstrong\u003epure power amplifier (main amplifier)\u003c\/strong\u003e. Some customers have attempted to compare its bass performance with that of 2.1-channel speaker systems. For dedicated bass, purchasing a subwoofer would be a more suitable choice.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePaired with Toshiba 2SC5200\/A1943:\u003c\/strong\u003e Delivers a \u003cstrong\u003etube-like (valve) sound character\u003c\/strong\u003e, offering \u003cstrong\u003erefined detail\u003c\/strong\u003e and a \u003cstrong\u003efull, rich tonal quality\u003c\/strong\u003e with a \u003cstrong\u003eslightly warmer, mellower tilt\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePaired with ON Semiconductor Series High-Power Transistors:\u003c\/strong\u003e Produces a \u003cstrong\u003elively, articulate sound\u003c\/strong\u003e with \u003cstrong\u003eexcellent layering and harmonic overtones\u003c\/strong\u003e, and \u003cstrong\u003estrong rhythmic drive\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePaired with Japanese Sanken High-Power Transistors:\u003c\/strong\u003e Provides \u003cstrong\u003edeep bass extension\u003c\/strong\u003e, \u003cstrong\u003epowerful dynamics\u003c\/strong\u003e, and \u003cstrong\u003etight, solid, and forceful low frequencies\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/16_O1CN01Mf9jIy1OQC1rllJul_88221699-1024x824.jpg_20260331152544.jpg?v=1774942681\"\u003eIn addition, a specially custom-made \u003cstrong\u003e500W toroidal transformer with independent power supply for each channel\u003c\/strong\u003e is available.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/19_O1CN01um9Ly11OQC1rlleiD_88221699-1024x867.jpg_20260331152554.jpg?v=1774942681\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBased on personal comparison, thanks to the excellent circuit architecture, the use of Hi-Fi grade transistors (2SC2240, 2SA970, 2SA2705, 2SA114 complementary pairs), ON Semiconductor’s 15032\/15033 for the output stage, and circuit parameters refined through countless adjustments, this amplifier delivers superior sound quality. It outperforms amplifiers like the KSA50 and various Goldmund-inspired clones in every aspect: bass performance, the sweetness of vocals, and the transparency of the highs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eThe board features a built-in rectifier circuit, so you only need to connect a transformer; no external rectifier board is necessary. Wiring and installation are very straightforward. The fully symmetrical architecture, combined with precisely matched transistors, ensures the midpoint voltage is extremely stable without the need for adjustment.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eTo set the quiescent current per output transistor to 50-100mA, adjust the board’s single TEST point until the voltage drop across its two terminals measures 20-30 mV.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e Remember to use mica insulation sheets when mounting the output transistors, and ensure the mica sheets are fully coated with thermal paste.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 24V x 2 ~ AC 42V x 2 \u003cstrong\u003e+\u003c\/strong\u003e AC 12V \u003cem\u003e(Note: The AC12V is for the protection circuit)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200W @ 8Ω | 400W @ 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTHD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.002%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS\/N Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;100 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 Hz – 40 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePCB Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e273 mm x 88 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBoard Net Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 588 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeatsink Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e348 mm x 148 mm x 50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLarge Cap. Mounting Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25-30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDefault Resistors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePhilips brand resistors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e \u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/33_O1CN01xwqadm1OQBtNUBNTs_88221699.jpg_20260331152559.jpg?v=1774942794\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-13-3.jpg_20260331152559.jpg?v=1774942794\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-14-1.jpg_20260331152609.jpg?v=1774942794\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/36_O1CN01w6Ecne1OQBfJ7oTdb_88221699.jpg_20260331152631.jpg?v=1774942793\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/44_O1CN01h2JKTG1OQBvWsYQLk_88221699.jpg_20260331152608.jpg?v=1774942452\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/43_O1CN01HULz5h1OQBvWsaybg_88221699.jpg_20260331152614.jpg?v=1774942437\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/3_O1CN01gU2vDc1OQBvYdWNU2_88221699-600x600.jpg_20260331152623.jpg?v=1774942422\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/39_O1CN01KbXvxn1OQC1qnmZaF_88221699-1024x778.jpg_20260331152617.jpg?v=1774942793\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eGenuine Philips (PHILIPS) MRS25 1% Metal Film Resistors.\u003c\/strong\u003e\u003cspan\u003e High-stability metal film resistors featuring low current noise level, low temperature coefficient, and low tolerance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e \u003c\/p\u003e","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"Dual-Channel Kit (2SC2240 Version)","offer_id":51237956124976,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true},{"title":"Finished Board (without output transistors \u0026 main filter capacitors) - 2SC2240 Version","offer_id":51237956157744,"sku":null,"price":119.99,"currency_code":"USD","in_stock":true},{"title":"Finished Board with Toshiba 5200 Pair \u0026 ELNA Capacitors (2240 Version)","offer_id":51237956190512,"sku":null,"price":329.99,"currency_code":"USD","in_stock":true},{"title":"A60 Matching Heatsinks (Two Pieces Dark Gray)","offer_id":51237956223280,"sku":null,"price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-11-4.jpg_20260331152547.jpg?v=1774943053"},{"product_id":"bl53a-tpa3116-2-0-channel-digital-amplifier-board-home-use-100w-x-2-with-premium-red-ring-inductors-bluetooth-5-3","title":"BL53A-TPA3116 | 2.0 Channel Digital Amplifier Board | Home-Use 100W x 2 with Premium Red Ring Inductors | Bluetooth 5.3","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-16-1.webp?v=1775879325\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-12-4_fdd5f37c-b13b-4ab4-908d-75632b8b375a.webp?v=1775879354\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-11-5_bd26fef3-2c55-45db-8f5d-1674ae61afcd.webp?v=1775879365\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-15-1_e46158f8-fd58-42a1-a99f-7b4febead119.webp?v=1775879376\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-17-1.webp?v=1775879389\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-13-4_176e7ece-422a-4be1-98ea-2718a05bcc2b.webp?v=1775879402\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-19-1.webp?v=1775879415\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-14-2.webp?v=1775879429\" alt=\"\"\u003e\u003c\/p\u003e","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"Default Title","offer_id":66511447982384,"sku":null,"price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-15-1.webp?v=1775879240"},{"product_id":"classic-reproduction-maran-hdam-sweet-vocal-amplifier-audiophile-grade-amplifier-board-with-original-field-effect-input-transistors","title":"Classic Reproduction Maran HDAM Sweet-Vocal Amplifier: Audiophile-Grade Amplifier Board with Original Field-Effect Input Transistors","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e \u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eMarantz HDAM Audio Linear Amplifier Circuit (Japan) delivers exceptional sound quality: powerful low end, rich midrange, and delicate highs, resulting in a comfortable listening experience with a tube-like flavor—far surpassing typical op-amp preamps. Unfortunately, the core transistor K170 was discontinued in later production, and substitutes like the K246 or K30 could not fully restore its beautiful sonic character.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eIn 2024, we sourced original Toshiba replacement transistors from overseas that perfectly match the characteristics of the K170. Each SMD package contains two matched 2SK transistors, eliminating the need for manual pairing and offering even lower distortion. The output stage employs two pairs of Toshiba 2SC5200 and 2SA1943 driver transistors, capable of delivering up to 15A peak current—far outperforming digital amplifiers and the LM3886. The circuit includes comprehensive protection: over-temperature, output over-voltage, and delay startup.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003ePremium components are used throughout: genuine transistors, German WIMA capacitors, 1% precision resistors with copper leads, Japanese Omron relays, and a dual-layer PCB with immersion gold plating.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePCB Dimensions:\u003c\/strong\u003e 184 x 122 mm\u003cbr data-filtered=\"filtered\"\u003e\u003cstrong\u003ePower Supply Voltage:\u003c\/strong\u003e AC 18V x 2 to AC 28V x 2\u003cbr data-filtered=\"filtered\"\u003e\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 70W @ 8Ω \/ 100W @ 4Ω\u003cbr data-filtered=\"filtered\"\u003e\u003cstrong\u003eFrequency Band:\u003c\/strong\u003e 10–40 kHz\u003cbr data-filtered=\"filtered\"\u003e\u003cstrong\u003eMaximum Capacitor Mounting Height:\u003c\/strong\u003e 35 mm\u003cbr data-filtered=\"filtered\"\u003e\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e Approx. 868 g\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eAdjustment:\u003c\/strong\u003e Very simple. After ensuring correct soldering, power on and adjust the variable resistor so that the voltage across the TEST points is 20–40 mV. This corresponds to a quiescent current of 100–300 mA. Turning left reduces the current; turning right increases it.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-21.webp?v=1775879755\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-1-5.webp?v=1775879780\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/HDAM_-_-_-1080x1536.webp?v=1775879796\" alt=\"\"\u003e\u003c\/p\u003e","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"Default Title","offer_id":66511453651248,"sku":null,"price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-20.webp?v=1775879503"},{"product_id":"m4-replica-of-british-sugden-sf60-kit-audiophile-grade-amplifier-board-classic-sounding-outperforms-lm3886-tda7293","title":"M4 | Replica of British Sugden SF60 Kit | Audiophile-Grade Amplifier Board | Classic Sounding | Outperforms LM3886 \u0026 TDA7293","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Many have reported issues such as operating point drift or other problems after swapping op-amps. In fact, the use of \u003cstrong\u003eAD827\u003c\/strong\u003e and \u003cstrong\u003eLME49720\u003c\/strong\u003e is not recommended, as these two op-amps require relatively low feedback resistor values. \u003cstrong\u003eDirectly replacing with dual op-amps from the OPA or MUSES series will work without any issues.\u003c\/strong\u003e Examples include the \u003cstrong\u003eOPA2604, OPA2132, OPA1612, MUSES8920, MUSES02, OP275, and TL1057\u003c\/strong\u003e, all of which are fully compatible and can serve as drop-in replacements.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eThe resistor marked with \u003cstrong\u003e“?”\u003c\/strong\u003e on the board has a value of \u003cstrong\u003e3.9 kΩ\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eFinished board weight:\u003c\/strong\u003e approx. 205 g (net weight)\u003cbr\u003e\u003cstrong\u003eFinished board + capacitors + Toshiba heat sink:\u003c\/strong\u003e approx. 797 g\u003cbr\u003e\u003cstrong\u003eFinished board + capacitors + ON Semiconductor heat sink:\u003c\/strong\u003e approx. 767 g\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eThe M4 circuit is derived from a replication of the British Sugden SF-60. This British circuit is truly remarkable, reproducing musical melodies that captivate and immerse the listener completely. Its pure and natural sound quality is thoroughly embodied in the circuit design. Compared to the Audiolab 8000A, it clearly surpasses it by two levels, especially in the layering and refinement of the mid-to-high frequencies.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eThe performance of this amplifier far exceeds that of amplifiers using the NEC UPC2581V as a driver transistor. Its midrange, in particular, is much more listenable and comfortable. More importantly, it allows for the replacement of the input op-amp, offering the enjoyment and satisfaction of tailoring the sound signature and performing upgrades. If sufficient heat sinking is provided, the unit can even be adjusted for pure Class A output! The product includes complete overcurrent protection, delayed startup protection, and output DC protection to ensure the safety of your valuable speakers.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003ePurchase options include either a component kit or a finished board. The main heat sink must be purchased separately: thickened version ($14).\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePower Supply Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAC22VX2 to AC36VX2\u003cbr\u003e\u003cstrong\u003ePCB Dimensions:\u003c\/strong\u003e 153 x 128 mm\u003cbr\u003e\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 150W + 150W (4Ω), 100W + 100W (8Ω)\u003cbr\u003e\u003cstrong\u003eOptional Power Transistors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eON Semiconductor complementary pair NJW0281\/NJW0302\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eToshiba 2SC5200\/2SA1943\u003cbr\u003e\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 10 Hz – 40 kHz\u003cbr\u003e\u003cstrong\u003eIncluded Accessories:\u003c\/strong\u003e Mica insulators, mounting screws, fixing brass spacers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eNotes on Transistor Selection:\u003c\/strong\u003e\u003cbr\u003eThe ON Semiconductor transistors offer excellent technical performance with well-layered sound, while the Toshiba transistors deliver warm, captivating tonality and outstanding bass.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePurchase Note:\u003c\/strong\u003e\u003cbr\u003eBoth the kit and the finished board \u003cstrong\u003edo not include\u003c\/strong\u003e the two 10000 µF main filter capacitors, which must be purchased separately.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eKey Components:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eDouble-sided immersion gold PCB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eGerman WIMA MKS coupling capacitors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eMilitary-grade 718 series resistors with copper leads\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eJapanese Omron relay\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eImported original transistors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eJapanese Nippon Chemi-Con (Black Gate) capacitors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eSanken rectifier bridge\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eAdjustment:\u003c\/strong\u003e\u003cbr\u003eThis board is very simple to adjust. You only need to measure and set the quiescent current of the output transistors.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/1_0cfe046a814c17284c301e26e59fbe4b_4829ce70-121e-4d15-8d42-237e594e59e5.webp?v=1775880614\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/2_9dc1ea9cf3c028ec89cc3159f7e22ee9_deb1865a-84f5-4fd3-b669-f34c43cd77e9.webp?v=1775880631\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-23.webp?v=1775880643\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/10_O1CN01F1lZBJ1OQBwA6eyX6_88221699-1047x1536.webp?v=1775880658\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-5-6-1024x1014.webp?v=1775880671\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-8-4-1176x1536.webp?v=1775880682\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/13_O1CN014ZDfEo1OQBzQyk6Xs_88221699.webp?v=1775880696\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/3_O1CN01uRL24T1OQBzPWNE8z_88221699-1.webp?v=1775880735\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/5_O1CN011d0H1o22OtXczPEbb_6000000007111-0-cbu_global_ai_agent-1.webp?v=1775880752\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-1-6.webp?v=1775880763\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-2-5.webp?v=1775880781\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-9-4.webp?v=1775880793\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/19_O1CN01Do2xRE1OQBwCV3iFF_88221699-1024x991.webp?v=1775880808\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eCopper Leads of Resistors\u003c\/strong\u003e\u003cspan\u003e: Noticeably thicker and sturdier than standard resistors, comparable to those used in DALE brand resistors.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003cspan\u003e: 25-50 pp\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003ePower Rating\u003c\/strong\u003e\u003cspan\u003e: 1\/4W\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eTolerance\u003c\/strong\u003e\u003cspan\u003e: 1% (indicated by 5 color bands)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/21_O1CN01H2ToNm1OQBzPAWznd_88221699.webp?v=1775880821\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"Kit (with ON Semiconductor power transistors)","offer_id":66511469478192,"sku":null,"price":89.0,"currency_code":"USD","in_stock":true},{"title":"Kit (with Toshiba power transistors)","offer_id":66511469510960,"sku":null,"price":99.0,"currency_code":"USD","in_stock":true},{"title":"Finished board (with ON Semiconductor power transistors)","offer_id":66511469543728,"sku":null,"price":119.0,"currency_code":"USD","in_stock":true},{"title":"Finished board (with Toshiba power transistors)","offer_id":66511469576496,"sku":null,"price":129.0,"currency_code":"USD","in_stock":true},{"title":"300w pure copper wire transformer","offer_id":66511469609264,"sku":null,"price":99.0,"currency_code":"USD","in_stock":true},{"title":"Thickened heat sink (mounting holes drilled free of charge)","offer_id":66511469642032,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true},{"title":"Finished board + capacitors + heat sink (Toshiba version)","offer_id":66511469674800,"sku":null,"price":179.0,"currency_code":"USD","in_stock":true},{"title":"Finished board + capacitors + heat sink (ON Semiconductor version)","offer_id":66511469707568,"sku":null,"price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/1_0cfe046a814c17284c301e26e59fbe4b.webp?v=1775904826"},{"product_id":"stk412-530-finished-amplifier-board-audiophile-grade","title":"STK412-530 Finished Amplifier Board, Audiophile-Grade","description":"\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePrimary Voltage:\u003c\/strong\u003e 33-0-33V AC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eSecondary Voltages:\u003c\/strong\u003e 17-0-17V AC \u0026amp; 14-0V AC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-1-7.webp?v=1775905500\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eAbout SANYO Semiconductor (an ON Semiconductor Company)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eSANYO Semiconductor Co., Ltd. (an ON Semiconductor company) is a semiconductor manufacturing company with excellent power device technologies, such as miniaturized packaging, high-efficiency switching, and high-density packaging, as well as world-class analog technology. Its analog-related assets include extensive process technologies, analog design expertise, skilled analog engineers, and specially designed and manufactured energy-saving and environmentally friendly devices, such as hybrid integrated circuits for inverters. SANYO Semiconductor’s core devices include discrete circuits, general-purpose analog LSIs, ASSPs, and hybrid ICs, widely used in various products like personal computers, printers, cable TV systems, mobile phones, audio-visual equipment, gaming devices, car audio systems, and air conditioners.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eAbout SANYO STK (Thick-Film Integrated Circuits)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eThe SANYO STK series is commonly known as “SANYO Thick-Film.” Its meticulously tuned sound performance and the high-precision control in its semiconductor production process are levels that ordinary amateur DIY enthusiasts simply cannot achieve. Beyond offering better soundstage and resolution, its bass impact is significantly stronger—it’s like the difference between a professional athlete and an average player! These thick-film circuits were always custom products specifically made for major audio brands. In the past, many famous manufacturers used them to build power amplifiers. Nearly all major Japanese audio brands of the era adopted them—such as K+H, Sony, Panasonic, Kenwood, JVC, Sansui, Sharp, Pioneer, Aiwa, and more—and continued their use for over twenty years. They influenced an entire generation and represent the quintessential sound of that era, etched deeply into the memory of those who grew up with it, a sound that is unforgettable upon every listen. The SANYO division specializing in amplifier modules was later acquired by the American company ON Semiconductor. Post-acquisition, the integration of SANYO’s traditional craftsmanship with ON’s unique design made subsequent products even more outstanding. They continue to be used by major American and European companies today, such as Bose and Genelec.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eAbout the SANYO STK412-530-E Module\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eWe were fortunate to encounter a batch of brand-new, old-stock SANYO STK412-530-E amplifier modules from SANYO’s later production period. It is said that the versions with the “globe” logo and grey casing are products from after ON Semiconductor acquired SANYO’s production lines. These modules incorporated ON Semiconductor’s design and craftsmanship. Products from that phase broke from the traditional, aesthetically unappealing black casing of older SANYO modules, becoming more refined and delicate, with significant improvements in internal build quality as well. Objectively, in terms of listening experience, they far surpass the older SANYO modules.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eUnfortunately, very few products from that time can still be found today. That period coincided with the rapid rise of the internet and the widespread adoption of various portable devices (especially large-screen smartphones), which gradually led many to forget about these high-performance desktop components. Many once-prominent audio manufacturers were forced to shift their product directions, leaving these custom-ordered modules forgotten in the warehouse of the original SANYO packaging plant in the Philippines for over a decade.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eIt wasn’t until late last year that a friend from Shantou connected us with this batch of products. At the time, we couldn’t find any reference material for this product online. With the help of our friend A Liang, we managed to find only a single application screenshot on a foreign website, which gave us the confidence to acquire the entire batch.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eAfter testing, we found this module still holds considerable potential. Its actual power output exceeds that of the STK412-430, and it utilizes a high\/low voltage supply. Lacking official documentation, we provisionally rate its power at \u003cstrong\u003e200W x 2\u003c\/strong\u003e, recommend an operating voltage of \u003cstrong\u003e±45V DC\u003c\/strong\u003e, with the maximum operating voltage not exceeding \u003cstrong\u003e±52V DC\u003c\/strong\u003e. (The schematic indicates it requires dual voltage supply; a reference schematic is available via the link in the product description.)\u003c\/p\u003e\n\u003chr\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eProduct \u0026amp; Sales Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eProduct Version:\u003c\/strong\u003e This is a tested prototype version. Each unit is installed and tested before shipping.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eIncluded Heatsink:\u003c\/strong\u003e The finished board includes a heatsink as shown in the pictures. For high-power operation, this may be insufficient. Users should add additional cooling based on their actual usage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eMain Filter Capacitors:\u003c\/strong\u003e These are second-hand, salvaged Rubycon capacitors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e Only available as a finished board. No kit version is offered, and components are not sold separately.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e Warranted to be functional upon arrival. Damage due to overvoltage is not covered. The finished board carries a \u003cstrong\u003e3-month warranty\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eKey Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePower Supply Voltage:\u003c\/strong\u003e AC dual 24-36V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eRecommended Transformer Power:\u003c\/strong\u003e 300W or above\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 200W x 2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eImpedance:\u003c\/strong\u003e 4-8 Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eDimensions (W x H x D):\u003c\/strong\u003e 120 x 55 x 140 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.45 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/7_O1CN010XAyAK1OQBVtbkyHZ_88221699.webp?v=1775905471\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/8_O1CN01k1YqkJ1OQBVnyx0MQ_88221699.webp?v=1775905866\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/9_O1CN017qZy9d1OQBVtbiQJi_88221699.webp?v=1775905880\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/5_O1CN015mflxm1OQBVrvwS85_88221699_dd55c37b-1a20-475a-9b51-4878956e5908.webp?v=1775905893\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-24_1.webp?v=1775905305\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eGuaranteed functional upon arrival. Damage caused by overvoltage is not covered.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eThe finished board comes with a \u003cstrong\u003e3-month warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePower Supply:\u003c\/strong\u003e AC dual 24-36V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eRecommended Transformer:\u003c\/strong\u003e 300W or above\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eFilter Capacitors (Default Rating):\u003c\/strong\u003e 63V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 100W x 2 @ 4Ω | 80W x 2 @ 8Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eImpedance:\u003c\/strong\u003e 4-8 Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eDimensions (W x H x D):\u003c\/strong\u003e 125 x 49 x 68 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/10_O1CN01gcG0tz1OQC1JVSFA4_88221699.webp?v=1775905946\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/11_O1CN011iy2KA1OQC1PFmXGr_88221699.webp?v=1775905962\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/12_O1CN01JcA9WP1OQC1P1PQzR_88221699.webp?v=1775905981\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eGuaranteed functional upon arrival. Damage caused by overvoltage is not covered.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eThe finished board carries a \u003cstrong\u003e3-month warranty\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePower Supply:\u003c\/strong\u003e AC dual 24-35V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eRecommended Transformer Power:\u003c\/strong\u003e 300W or above\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eFilter Capacitors (Default):\u003c\/strong\u003e Rated at 50V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 200W x 2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eImpedance:\u003c\/strong\u003e 4-8 Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eDimensions (W x H x D):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e125 x 49 x 68 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-2-6.webp?v=1775906001\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/14_O1CN01Sf7X7V1OQBoegDgSL_88221699.webp?v=1775906016\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/15_O1CN01pliB901OQBoXgaFOe_88221699.webp?v=1775906033\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/18_O1CN01hc8Uxl1OQBVrMdja9_88221699.webp?v=1775906043\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/19_O1CN01ld4lM11OQBVqQhIqe_88221699.webp?v=1775906067\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/3_O1CN01cIQCmr1OQBVprcoHg_88221699_538f45f8-00ce-4971-a3bd-5d934ee0b835.webp?v=1775906079\" alt=\"\"\u003e\u003c\/p\u003e","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"STK412-490 Amplifier Board-100W x 2","offer_id":66511815606576,"sku":null,"price":59.99,"currency_code":"USD","in_stock":true},{"title":"STK412-530 Version 2-200W x 2","offer_id":66511815639344,"sku":null,"price":69.99,"currency_code":"USD","in_stock":true},{"title":"300w Toroidal Transformer - Dual 33V + Dual 17V + Single 14V","offer_id":66511815672112,"sku":null,"price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/image-24_1.webp?v=1775906131"},{"product_id":"class-a-hd1969-power-amplifier-board-gold-sealed-deluxe-collectors-edition-hood1969-power-amplifier","title":"Class A HD1969 Amplifier Board, Deluxe Collector's Edition with Metal Can Transistors, HOOD1969 Amplifier","description":"\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 28.0px;\"\u003e\u003cspan\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e\u003cspan style=\"background-color: #ffd700;\"\u003eAt present, all power amplifier boards have been upgraded to a new generation of special tube kings\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN01edETPS1OQBtJlZAXI_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cspan style=\"font-size: 22.0px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eThere are many kinds of HD1969 boards on the market, but the design is different, the wiring is different, the material is different, and the sound quality difference is very large. 6 gold-sealed tubes (disassembled) ensure very good quality and sound, and can also be turned on without impact and a quieter background. It is worth collecting and owning!\u003c\/span\u003e\u003c\/span\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01iCbTnh1OQBwXA452c_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN013niAt21OQBtfayEFQ_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN01QAJ5Aa1OQC2CfK7uG_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003ca href=\"http:\/\/item.taobao.com\/item.htm?spm=a1z10.3-c-s.w4002-23371572373.9.1d3f1cfaA7SjEA\u0026amp;id=7314354497\"\u003ehttps:\/\/item.taobao.com\/item.htm?spm=a1z10.3-c-s.w4002-23371572373.9.1d3f1cfaA7SjEA\u0026amp;id=7314354497\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 22.0px;\"\u003eOptional transformer\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN011Q6ow71OQBteuMTvm_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01EQPfjP1OQBthxXyk6_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN0124DGqA1OQBtcEIfFv_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN0164iLyv1OQBtg0wnjz_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01JLkyWJ1OQC1G7zLCg_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN016icL7H1OQBthmaIUT_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN013niAt21OQBtfayEFQ_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01EwKeYI1OQBtfHrLXo_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01gXZFS81OQBthUXo1w_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"Gold-plated PCB 1 pair","offer_id":66600328659248,"sku":"4674596212015","price":15.88,"currency_code":"USD","in_stock":true},{"title":"2 finished plates have been installed and tested.","offer_id":66600328692016,"sku":"4674596212017","price":69.29,"currency_code":"USD","in_stock":true},{"title":"Double 22V transparent envelope","offer_id":66600328724784,"sku":"4888084561742","price":26.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/O1CN013niAt21OQBtfayEFQ__88221699.webp?v=1777024539"},{"product_id":"lelin-edition-3-parallel-stk404-090-full-analog-power-amplifier-board-recreating-the-sound-of-the-golden-age","title":"[Lelin Edition] 3-Parallel STK404-090 Full Analog Amplifier Board – Recreating the Sound of the Golden Age","description":"\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01c6QK5i1OQC1cmuuS3_!!88221699.jpg\" width=\"620\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01CWgHAY1OQC1c9Vesq_!!88221699.jpg\" width=\"620\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN017MT6DE1OQC2sdz1Jb_!!88221699.jpg\" width=\"620\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01BF0Ovl1OQC1cTRHzB_!!88221699.jpg\" width=\"620\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN01JSILB51OQC1cyMIl4_!!88221699.jpg\" width=\"620\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01UaaZxp1OQC1cTRM9O_!!88221699.jpg\" width=\"620\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN017xWjrl1OQC1cTRUSF_!!88221699.jpg\" width=\"620\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN018qKPyg1OQC1cxrDOv_!!88221699.jpg\" width=\"620\"\u003e\u003c\/div\u003e\n","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"1 pair of finished boards","offer_id":66600332624176,"sku":"6153297383935","price":44.52,"currency_code":"USD","in_stock":true},{"title":"Transformer 2 sets of double 33V 300W","offer_id":66600332656944,"sku":"6153297383936","price":39.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/O1CN01CWgHAY1OQC1c9Vesq__88221699.webp?v=1777024676"},{"product_id":"refer-to-golden-throat-p1000-power-amplifier-circuit-power-amplifier-board-enthusiast-grade-finished-board-kit-version-2023","title":"Audiophile-grade finished amplifier board and kit based on the Accuphase P1000 amplifier circuit reference.","description":"\u003cdiv style=\"width: 750.0px;height: auto;overflow: hidden;\"\u003e\n\u003cdiv style=\"width: 750.0px;height: auto;overflow: hidden;\"\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN017GSzIv1OQByGE1uVF_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN01y6BTgh1OQByGE0lpo_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01enB88c1OQBwQ9py4j_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01WY46861OQBvsTsMu9_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg 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(without heat dissipation).","offer_id":66600341668144,"sku":"5808123262645","price":42.04,"currency_code":"USD","in_stock":true},{"title":"Radiator 200 * 62 * 40mm","offer_id":66600341700912,"sku":"5808123262646","price":15.55,"currency_code":"USD","in_stock":true},{"title":"300W transformer","offer_id":66600341733680,"sku":"5808155358809","price":46.04,"currency_code":"USD","in_stock":true},{"title":"Blank board without components","offer_id":66600341766448,"sku":"6183518442401","price":18.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/O1CN0182FlSA1OQBvC9eGJi__88221699.webp?v=1777024909"},{"product_id":"参考英国leak锗管功放15w成品功放板超电子管胆机ocl经典3ad18a","title":"Based on the British LEAK germanium transistor amplifier, 15W finished amplifier board – outperforms tube amps, OCL classic, 3AD18A.","description":"\u003cdiv style=\"width: 750.0px;height: 4467.0px;overflow: hidden;\"\u003e\n\u003cdiv style=\"width: 750.0px;height: 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Blaze.","offers":[{"title":"kit","offer_id":66600346222896,"sku":"4655848003033","price":39.09,"currency_code":"USD","in_stock":true},{"title":"Finished board with tube as shown","offer_id":66600346255664,"sku":"4655848003032","price":55.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/O1CN01vkxtxi1OQBd2AN8oh__0-item_pic.webp?v=1777025046"},{"product_id":"stk4204mk2-sanyo-thick-film-ball-flavor-hifi-professional-power-amplifier-finished-board-100w-high-power-classic-vocals","title":"Sanyo STK4204MK2 Thick-Film Hi-Fi Professional Amplifier Finished Board – Tube-Like Sound, 100W High Power, Classic Vocals Replication.","description":"\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 20.0px;\"\u003eSTK42xxMK2 power amplifier module is a stereo HI-FI music amplifier released by Sanyo in 1998, module! The interior uses a very feverish cross-flow circuit and a paired high-power transistor, and the power amplifier has high-quality sound quality! (Now let's not talk about amateur situations, even if there is a certain scale of factories at present, it is difficult to get high-precision power amplifier triodes in batches under current circumstances. At present, our domestic audio industry relies on these key components, so it is still difficult to make sound). This power amplifier module also has its own horn protection circuit to directly drive the output relay\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN01LWIE9Q1OQByLT3abl_!!88221699.jpg\" style=\"font-size: 14.0px;display: block;width: 750.0px;max-width: none;\"\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"width: 750.0px;height: auto;overflow: hidden;\"\u003e\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"word-break: break-all;font-size: 20.0px;\"\u003eBasic parameters:\u003cbr\u003e\n1. Power supply voltage: AC double 28V-38V (filter capacitor default 50V)\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"word-break: break-all;font-size: 20.0px;\"\u003e2, Output power: STK4204MK2 50W + 50W 8Ω\u003cbr\u003e\n                     STK4205MK2 50W+50W 8Ω\u003cbr\u003e\n                     STK4214MK2 70W+70W 8Ω\u003cbr\u003e\n                     STK4215MK2 70W+70W 8Ω\u003cbr\u003e\n                     STK4234MK2 100W+100W 8Ω\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"word-break: break-all;font-size: 20.0px;\"\u003e3, frequency response: 20Hz-50kHz\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"word-break: break-all;font-size: 20.0px;\"\u003e4, distortion: 0.01%\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"word-break: break-all;font-size: 20.0px;\"\u003e5, Size: Green plate 143X73X61MM width x depth x height\u003cbr\u003e\nBlack plate 148X70X61MM width x depth x height\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"word-break: break-all;font-size: 20.0px;\"\u003e6, weight: about 243g\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"word-break: break-all;font-size: 20.0px;\"\u003e7, Accessories: copper column nut * 4, input shielded wire * 1, long screw * 2\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"word-break: break-all;font-size: 20.0px;\"\u003eAs can be seen from the parameter table, an 8-ohm load can achieve an actual output power of 50WX2, while the distortion rate is 0.01%! There is no problem with pushing the 8-inch speaker.\u003cbr\u003e\nSound performance: The overall tone is warm, the sound is relatively soft, the treble extension is high but not harsh, the bass is deep enough, and the elasticity is very good, and it will not be mixed or sloppy. Sanyo thick film is a circuit between integrated and discrete power amplifiers, fine workmanship and excellent craftsmanship are stronger than 3886,7294, and it is difficult for general DIY players to achieve this level.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"word-break: break-all;font-size: 20.0px;\"\u003eThe default is the finished board, which has been tested before shipment, and the non-human damage is guaranteed for 3 months.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01gmpoLe1OQByGX4HNG_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01p0C1rE1OQByMSmo8P_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN016ZuHv81OQByMfJTzR_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01NZzLAp1OQByNDcpA1_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01rZGoWt1OQByNDcQDT_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN01g9hVIr1OQByN8ijUI_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN01aU1KTf1OQByMSqprE_!!88221699.jpg\" style=\"display: block;width: 100.0%;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 22.0px;\"\u003eThe picture below shows the STK4215 power amplifier board, which is only a module with different power supply and power.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01JFgbZ31OQC1dLecks_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN017DpLlz1OQC1ck1C8l_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"STK4204 power amplifier board","offer_id":66600349466928,"sku":"5333294902974","price":36.45,"currency_code":"USD","in_stock":true},{"title":"STK4234 power amplifier board","offer_id":66600349499696,"sku":"5340898610510","price":40.41,"currency_code":"USD","in_stock":true},{"title":"STK4215 power amplifier board","offer_id":66600349532464,"sku":"5987265448345","price":37.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/O1CN019StdBn1OQBlvpGUvX__88221699.webp?v=1777025124"},{"product_id":"300w-low-distortion-classic-stk-high-power-beautiful-sound-thick-film-stk496-430-power-amplifier-board-diy-finished-board","title":"300W Low-Distortion Classic STK High-Power High-Fidelity Thick-Film Amplifier Board – STK496-430, DIY Finished Board.","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 22.0px;\"\u003e  \u003c\/span\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cspan\u003e\u003cspan\u003e   \u003c\/span\u003e\u003cspan style=\"background-color: #ffff00;\"\u003ebasic parameters\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eSTK496-430 power 150W + 150W 6Ω working voltage, AC dual 33-35V\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eSTK496-090 Power 100W + 100W 6Ω working voltage, AC dual 24-35V\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eSTK407-050 Power 60W + 60W 6Ω working voltage, AC double 22-28V\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 26.0px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eAll STK series chips are compatible with 4-8 ohm speaker complexes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;color: #333333;text-indent: 24.0px;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #800080;\"\u003eSanyo STK is commonly known as Sanyo Thick Film. Under the control of the tuned sound and high-precision semiconductor process production process, it is not the level that ordinary amateur DIY players can achieve. In addition to better sound field and resolution, the low-frequency strength is much stronger, which is completely the difference between professional athletes and ordinary players! These thick film circuits have always been customized products for big brand audio manufacturers. In the early days, many famous factories used them to manufacture power amplifiers, such as K + H, Sony Sony, Panasonic PANSONIC, KENWOOD, JEVIS JVC, Shanshui SANSUI, Sharp SHARP, Pioneer PIONEER, Aihua AIWA, etc. Almost all Japanese audio manufacturers use them, and they have been used for more than 20 years, which has influenced a whole generation. It is also a sound with a strong era brand that our entire generation heard when they were young. It always sounds unforgettable. Sanyo, a company specializing in the production of power amplifier modules, was later acquired by ON Semiconductor of the United States. After the acquisition, it integrated Sanyo's traditional craftsmanship, coupled with ON's unique design, and the later products were even more outstanding. They are still used by large companies in the United States, such as BOSE and Genelec in Europe!\u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003e  \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eFortunately, I came across a batch of new inventory of the power amplifier module STK496-090 produced by Sanyo SANYO in the later stage, which is a more classic sound of the old Sanyo. Unfortunately, in the later stage, coinciding with the vigorous development of the Internet and the large-scale popularity of various portable devices (especially large-screen touch-screen mobile phones), many people gradually forgot these high-performance desktop devices. Those once famous audio manufacturers had to change their product direction, making these customized products dusty in the original SANYO packaging factory warehouse in the Philippines, staying for more than ten years.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eAfter getting the test, it is found that this module still has relatively large potential. According to the circuit test provided by the official, the sound is medium. Under the recommended working voltage AC double 35V voltage, its output power is 150WX2@6 Ω (THD = 0.05%) The recommended working voltage is DC plus or minus 45V, and the maximum working voltage should not exceed plus or minus 49V. (According to the data provided by the official)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eDIY is very simple, the whole board has been tested, no need to debug; DIY, upgrading and modifying speakers are all good choices.\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003ePower supply voltage: AC dual 33-35V\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eOutput power: STK496-430 150W6Ω (measured real power)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eSize: 116 * 73mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eAccessories: Copper pillar nut * 4, screw * 2, three-core shielded cable * 1\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e    \u003cspan style=\"background-color: #ff8c00;\"\u003eNote: The filter capacitor defaults to 50V withstand voltage, and the capacitor needs to be replaced if it is higher than 50V power supply.\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eThe finished board is tested and shipped, non-human damage, and the warranty is 3 months.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN0177B3lw1OQBoKDWAdk_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01rtRMS51OQBoQWNXWC_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01chc8fW1OQBoYr7WAN_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e    \u003cspan style=\"background-color: #ffff00;\"\u003eDIY is very simple, the whole board has been tested, no need to debug; DIY, upgrading and modifying speakers are all good choices.\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eSupply voltage:\u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003eSTK496-090   \u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003eAC Dual 24-35V\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e                      \u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003eSTK407-050  \u003c\/span\u003e \u003cspan style=\"color: #0000ff;\"\u003eAC Dual 22-28V\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eOutput power: STK496-090 100W6Ω (measured undistorted power)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e                     STK407-050   60W6Ω\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eDimensions:\u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003eSTK496-090   \u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003e116*83mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e                     STK407-050   \u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003e135*65mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eWeight: about 180g\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eAccessories: Copper pillar nut * 4, screw * 2, three-core shielded cable * 1\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;word-break: break-all;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cstrong style=\"font-weight: bold;font-size: 20.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eThe finished board is tested and shipped, non-human damage, and the warranty is 3 months.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01nj1YP81OQBlzKS8Gi_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01KwYZvA1OQBlyrOyfF_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01EnjeBu1OQBlzOxRUV_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN019o4sTI1OQBm47ApDS_!!88221699.jpg\" style=\"max-width: none;width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 22.0px;\"\u003eThe picture below shows the STK407-050 finished board.\u003c\/span\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01Kncj0A1OQBwYDmUtd_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN014gUxP71OQBwYglRl4_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01CrTCk81OQBwaKsRB9_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN01daJHCj1OQBx0WYXLS_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"STK496-090 Version 100W + 100W","offer_id":66600354906416,"sku":"5159605564566","price":25.36,"currency_code":"USD","in_stock":true},{"title":"STK496-430 PCB empty board","offer_id":66600354939184,"sku":"5338191647976","price":15.81,"currency_code":"USD","in_stock":true},{"title":"STK407-050 Version 60W + 60W","offer_id":66600354971952,"sku":"5902716974093","price":28.78,"currency_code":"USD","in_stock":true},{"title":"STK496-090 PCB empty board","offer_id":66600355004720,"sku":"5902716974094","price":21.81,"currency_code":"USD","in_stock":true},{"title":"STK407-050 PCB empty board","offer_id":66600355037488,"sku":"5902716974095","price":19.81,"currency_code":"USD","in_stock":true},{"title":"STK496-090 module","offer_id":66600355070256,"sku":"5735318016998","price":23.11,"currency_code":"USD","in_stock":true},{"title":"STK407-050 module","offer_id":66600355103024,"sku":"5735318016999","price":22.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/O1CN01nj1YP81OQBlzKS8Gi__88221699.webp?v=1777025295"},{"product_id":"全新库存先锋原装pac014a厚膜hifi发烧级功放板成品diy双声道音响","title":"全新库存先锋原装PAC014A厚膜hifi发烧级功放板成品diy双声道音响","description":"\u003cp style=\"color: #333333;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 24.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan style=\"font-size: 26.0px;\"\u003e\u003cstrong style=\"font-size: 20.0px;\"\u003e\u003cspan\u003e三洋STK442-090定制先锋标PAC014厚膜功放模块80WX2@6欧 全新原装假一罚十。先锋公司找三洋定制的厚膜功放电路，凡是先锋公司的定制产品必定是经过精挑细选反复比较才确定的电路结构和声音特点。PAC014A等同于三洋STK442-090，推荐工作电压正负48V，输出功率80WX2@6欧，失真度THD0.2%。本系列产品声音细节、解析力、人声、低频力度均好于其他系列。模块拆解图上可以看到巨大的保护芯片，而且芯片关键部位均涂透明胶保护。只有后期的高端产品才会这样做，不可多得，买到就是赚到\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #333333;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 24.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;\"\u003e\u003cspan style=\"font-size: 26.0px;\"\u003e\u003cstrong style=\"font-size: 20.0px;\"\u003e\u003cspan style=\"color: #800080;\"\u003e三洋STK俗称三洋厚膜。经过调校的声音和高精度半导体工艺生产过程控制下，不是一般业余DIY玩家可以达到的水平。除了声场和解析力更好以外，低频力度强很多，完全是职业运动员和一般玩家的区别！这些厚膜电路是一直是专门给大品牌音响厂家的定制产品。早期许多著名的工厂用它们来制造功率放大器，如K + H，索尼SONY，松下PANSONIC、建伍KENWOOD ,杰伟士JVC、山水SANSUI、夏普SHARP、\u003cspan style=\"background-color: #ffff00;\"\u003e先锋PIONEER\u003c\/span\u003e、爱华AIWA等差不多全部日本的音响厂家选用，而且沿用了超过二十年，整整影响了一代人，也是我们整整一代人年轻时候听到的带有强烈时代烙印的声音。每每听起都难以忘怀。三洋专门生产功放模块的公司后期被美国安森美公司（ON  semiconductor)收购，收购以后集成了三洋的传统工艺，再加上ON的独特设计，后期的产品更加出彩，至今仍被美国的大公司采用，如 BOSE，如欧洲的真力Genelec! \u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003e  \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr style=\"box-sizing: inherit;\"\u003e\n \u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;margin: 0.0px;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;background-color: #ffffff;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 24.0px;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;background-color: #e6f6e6;float: none;display: inline;\"\u003e    PAC014A厚膜实际听感很耐听，声音细节、解析力、人声、低频力度均好于其他系列。\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;background-color: #ffffff;margin: 1.12em 0.0px;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 14.4444px;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #000000;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-style: normal;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-weight: 400;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;letter-spacing: normal;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;orphans: 2;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;text-transform: none;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;white-space: normal;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;widows: 2;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;word-spacing: 0.0px;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;line-height: 23.3333px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;color: #0000ff;font-family: kaiti_gb2312;font-size: 24.0px;line-height: 36.0px;\"\u003e  基本参数：\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  供电电压：交流双25V-38V\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  \u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e输出功率：\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e50W+50W  \u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e8Ω   110W+110W 4Ω 实测持续最大输出功率\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  \u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e频       响：20Hz-50kHz\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  \u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e输入灵敏度：700mV\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  \u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e输入阻抗：50K\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  \u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e放大倍数：32倍\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  \u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e失       真：0.2%\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  \u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e尺       寸：155 x 78 x 40MM  长x宽x高\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  重       量\u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e：约277g \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e配       件：铜柱螺母*4、输入屏蔽线*1、长螺丝*2\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: inherit;padding: 0.0px;word-break: break-all;color: #000000;font-size: 12.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;margin: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;font-size: 22.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cspan style=\"box-sizing: inherit;word-break: break-all;color: #ff0000;\"\u003e  \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;font-style: normal;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;widows: 2;word-spacing: 0.0px;white-space: normal;background-color: #ffffff;color: #0000ff;font-size: 24.0px;line-height: 36.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;font-family: kaiti_gb2312;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;color: #0000ff;font-size: 24.0px;line-height: 36.0px;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;font-family: kaiti_gb2312;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e\u003cstrong style=\"box-sizing: inherit;font-weight: bold;\"\u003e默认为成品板，出货前已测好，非人为损坏保修3个月\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN01vOkkZK1OQBu8Lhr4q_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01mi8vBu1OQBu5CTxuv_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e四颗化工黑金刚5600uF 63V主滤波电容（拆机）\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01viGmoC1OQBu2uxDGC_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN019xBLHE1OQBu9QwhgE_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan style=\"font-size: 22.0px;\"\u003e板上设有完整的保护电路，输出采用大红环电感和松乐大电流继电器\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01eBLscF1OQBuIsOA6O_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01DNDlF51OQBuFP3WMV_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01eXWdgG1OQBuG74CjZ_!!88221699.jpg\" style=\"max-width: none;width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e全新原盒包装\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01DI2jym1OQBuGbDhBG_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 22.0px;\"\u003e肉眼可见两对大功率输出管\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN017SMUW71OQBuG0V5uI_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN01kZoJ7w1OQBu9BGKHQ_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"Default 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