The sound source input design can connect two groups of input signals, and automatically select the input group, the signal input switch uses the relay to ensure the input zero distortion.

Microphone input design can be connected to three microphones at the same time input

Contain high quality stereo echo circuit and REVERB system

A digital stereoscopic lifting tone controller that changes the pitch of 2.5 tones, an adjustable + 5 scale, and automatically returns to the standard tone after each song

Design a set of audio signal output terminal for recording seat

Design a set of main channel to expand with the first level signal output terminal

The design of a set of channels to expand the music backcourt signal output terminal is used

Design a subwoofer output terminal for subwoofer extension

A microphone signal output terminal for central speaker amplifier is designed