Sanyo STK, commonly known as Sanyo thick film, is not a level that ordinary amateur DIY players can achieve, thanks to its tuned sound and high-precision semiconductor process control. Besides better soundstage and resolution, its low-frequency dynamics are significantly stronger, completely distinguishing it from ordinary players and professional athletes! These thick film circuits have always been customized products specifically for major brand audio manufacturers. In the early days, many renowned factories used them to manufacture power amplifiers, such as K+H, Sony, Panasonic, Kenwood, JVC, Sansui, Sharp, Pioneer, and Aiwa, almost all of which are Japanese audio manufacturers. They have been used for over two decades, influencing an entire generation, and also the sound with a strong imprint of the era that our entire generation heard when we were young. It is unforgettable every time we listen to it. The company specializing in the production of power amplifier modules was later acquired by ON Semiconductor, which integrated Sanyo's traditional craftsmanship with ON's unique design, resulting in even more impressive products. These products are still adopted by major American companies such as Bose, and European companies like Genelec!
This STK4042II high-power amplifier board is a simplified version, with the removal of rectifying and filtering capacitors, allowing direct DC positive and negative voltage input and achieving an extremely small size. DIY is also very simple, as the entire board has been tested and requires no debugging. The output does not come with a protection circuit by default, which can be added according to personal usage. This product is a good choice for DIY, upgrading, and modifying speakers.
This STK4042II high-power amplifier board has a mono 80W 8Ω output. To achieve stereo sound, two boards are required.
Power supply voltage: DC ±45V to ±63V
Output power: 80W at 8Ω (measured undistorted power under DC 60V supply)
Size: 59.5*41mm
