Hey everyone...quick question. I have a Genz-Benz GBE400 head which I currently run through a GB 2X10 XB cab (350 watts at 4 ohms). I am looking to add either another 2X10 or 1X15 to this setup to complete the rig, but I think I am going to want more power than my head can provide (I'd end up with 450 watts rms when the speakers together will be capable of taking around 700-800 watts rms). Therefore, I would like to get a good old QSC poweramp to provide the extra power I want, but my funds won't allow me to get a preamp (I love how my head sounds anyway). So my question is...is it possible to use my head as my preamp? And if so...how would I hook the head up to the QSC in order to do this? Thanks!