Key Feature  1) Build in USB & RS 485 COM 2) Program Function; Recall Function; Copy Function; Save Function; Password Function. 3) 6-band EQ: Frequency, gain & Q fact are adjustable; Gain can be adjusted from -20 dB ...

Pre-amplifier,8 in 8 out , MIC 1 has prior function , with chime functionCan connect 8 units amplifiers external.With 8 independent input and output channels without any interference. Each channel has independent volume control.MIC 1 has priority function and can select any channel ...