Digital mixing desk series behringer x interfaces usb 20 firewire number of channels 32 number of mono channels 32 subgroups 16 dca gruppen 8 aux sends 6 aux returns 8 microphone inputs 32 line in 6 effects dsp multi effect features audio interface build in phantom power functions total recall recording function record to usb midi connectors midi in midi out network connections 1 x ethernet 1 x ultranet bitrate 40 bit display lc display