BUY TDA7433D https://www.utsource.net/itm/p/250059.html
BASIC FUNCTION AUDIO PROCESSOR
The TDA7433D is a 4-channel audio processor with a built-in volume control. It is designed to provide a low-cost solution for audio applications such as car radios, CD players, and portable audio systems.
Features:
* 4-channel audio processor with built-in volume control
* Low-noise and low-distortion operation
* Low-power consumption
* High-impedance input
* Low-cost solution
Applications:
* Car radios
* CD players
* Portable audio systems
* Home theater systems
* Audio amplifiers
(For reference only)