Sanyo STK is commonly known as Sanyo thick film. Under the control of calibrated sound and high-precision semiconductor technology production process, it is beyond the reach of ordinary amateur DIY players. In addition to better sound field and resolution, the low-frequency intensity is much stronger, which is completely different between professional athletes and ordinary players! These thick film circuits have always been customized products specifically for big brand audio manufacturers. Many famous factories in the early days used them to manufacture power amplifiers, such as K+H, Sony SONY, Panasonic PANSONIC, Kenwood KENWOOD, JVC, SAN SUI, Sharp SHARP, Pioneer PIONEER, AIWA, etc. Almost all Japanese audio manufacturers chose and used them for more than 20 years, which has influenced a whole generation and is also the sound with strong era imprint that we heard when we were young. It always sounds unforgettable. Sanyo, a company specializing in the production of amplifier modules, was later acquired by American company ON Semiconductor (NO). After the acquisition, Sanyo's traditional craftsmanship was integrated, combined with ON's unique design, making the later products even more outstanding. They are still adopted by large American companies such as BOSE and European Genelec!
DIY is very simple, as the entire board has been tested and requires no debugging; DIY, upgrading, and modifying speakers are all good choices.
The STK4187 module is a three-channel 100W model that outputs signals in full range by default. When used as a subwoofer, the bass channel needs to be connected to a low-pass signal input.
Power supply voltage: AC dual 25-35V
Frequency response: 15Hz-18kHz
Output power: 3X100W@4Ω 3X66W@8Ω
Size: 175*83mm
