Karaoke Pre-processor. It is designed on the basis of more than ten years of designing concept and experience in Karaoke field. The excellent audio reproduction, special human voice processing and high-performance- price- ratio guarantee your benefit. It is multi-channel Karaoke Pre-processor and can be matched with power amplifier. It can be used in Professional Karaoke, conference room, multi-function hall, Performance bar and home entertainment. Through digital processing on music and microphone signal, it provides flexible effect processing and output setting. It's very suitable for Karaoke, especially for KTV room. All of functions can be adjusted by panel control button and display in LCD. It also can be connected with PC with built-in control software through RS232. The special 8 output can be set up two groups: One is Left, Right stereo + Center + Sub + Rear; the other is Stereo Surround (according to actual application, There isn't Rear and Surround output for some models, please take the actual product as standard).