*12/16/20 channel design
*4/8/12 mono, 4 stereo
* Balanced XLR output
*4 auxiliary grouping, 2 fader forward foldback, 1 attenuated rear aux, 1 stereo output
*LR main TRS output
* External stereo effects input with internal effects
*9-band stereo equalization
*24DSP effect
* MP3 player
* Low-pass filtered XLR output
*+48V phantom power switch
*100MM FADERS
* USB recording function
*12/16 channels can be rack-mounted