1)3-band frequency equalizer for all MONO input channel;
2)Ultra low-noise discrete Mic pre-amplifier on all microphone inputs;
3)MONO channel could connect to low-cut filter for reducing low frequency disturbance .
4)Stereo inputs with 10dB input sensitivity switch for all kinds of sign input.(Not include the MS502M and the MS602M).
5)One AUX output(Not include the MS502M and the MS602M).
6)Stereo play in and stereo record out.
7)Nimble control output and microphone monitor.
8)Peak indicator for mono channels.
9)Built-in +48V phantom power for condenser microphone.