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BUY TDA7851A https://www.utsource.net/itm/p/1883585.html
Audio Amp Speaker 4-CH Stereo 48W Class-AB Automotive 27-Pin FLEXIWATT Tube
The TDA7851A is a 4-channel car radio power amplifier from STMicroelectronics. It is designed to provide high-efficiency, low-noise amplification of audio signals in car radio applications. The device features a low-noise preamplifier, a high-efficiency power amplifier, and a low-noise output stage. It is capable of delivering up to 4 x 45 W of power into 4-ohm loads. Features: Low-noise preamplifier High-efficiency power amplifier Low-noise output stage 4 x 45 W power output into 4-ohm loads Short-circuit protection Over-temperature protection Thermal shutdown Low-voltage protection Over-voltage protection Reverse-polarity protection Applications: Car radio Automotive audio systems Home audio systems (For reference only)