Hey guys, I work in a theatre (ok, ok, I'm a lighting boy ), and out of curiosity I was just wondering if it is possible to hook up standard stereo headphones with a boom mic (separate jacks for audio in and mic out) to the "cans" system. I'm not exactly sure of the brand of "cans" we use, but I know that the "headset in" is XLR. I only know the basics of audio and how it all works, and obviously know that most Audio XLR is 3-pin, but how does this work for incoming and outgoing audio??? Sorry if this is the most stupidest question ever asked on these forums, but if I don't ask I'll never know!!