The 4-channel DSP digital power amplifier is composed of a 3.97-inch color TFT resistance touch screen module and an audio processing module. There are 4 channels of analog audio balance signal input terminals, which are correspondingly converted into 4-channel balanced output, and a series of software digital processing is conducted in the middle.With its own control software, the software interface is divided into PC version and touch-screen version, respectively on Windows platform of the computer and its own touch screen display.The two can be synchronized via touch screen, Dante and USB.