Like I said, the unit works fine with a normal dynamic mic with an XLR cable.
When, instead, I plug the gaming headset in with a 3.55mm to XLR adapter, it seems like no signal is going through at all. I can't hear any input from the mic and the input indicator (green,yellow,red) does nothing, even with the input gain cranked all the way up.
Is it possible to make this work? Do I need a mic preamp or something? Is there a setting in the global configuration I should change?