Specifications: 1,8,12 mono channels and 2 groups of stereo input channels 2,simple, flexible, high efficient, fine and super linear mic preamp 3,With Built-in DSP digital effect processor 4,Overload lamp can adjust its lightness according to the event of overload for warning 5,A inserting point is equiped for mono channel and main output, 6,so to connect external signal processor 7,Provide real professional +48V phantom power for condenser mic 8,3 bands EQ, HM and LM swept, with England style 9,2 AUX outputs, all can switch to pre/post fader and connect with external processor 10,High accurate three color level column, to display output level exactly 11,60mm high precision handspike POT attenuator 12,Built-in squelch switch power source supply, more flexible and convenience simple mountable rack (optional).