48V Phantom Power With build in pre-amplifier for Mic,Insert, 4Mono Channel,4stereo Channel with 2 Aux return and send 3band EQ for each channel all mono channel with lowcut Feedback 7band stereo graphic EQ Ruduce noice function for karaoke 16DSP effector digital display 2 groups 3 color 10 band level display Dual 7 band master control EQ G.W.: 8.00KGS