Analogue mixing desk series allen heath zed interface usb number of channels 14 number of mono channels 6 number of stereo channels 4 aux sends 4 aux returns 4 channel inserts 6 microphone inputs 6 line in 10 equalization 3 band eq features audio interface build in phantom power inputs 6 x micxlr main out anschluss 1 x master lr xlr inputs 6 micline 4 dual stereo 4 aux sends usb send and return 2 track return insert per channel