How many of you use your XLR output to drive a power amp? For some reason this does not seem to be the accepted method, unless I am missing something. I cannot afford to spend any money at the moment, however, I need more power. I have an SWR SM-500 and a QSC PLX 1602 that I want to use together. The only way to do that is to hook the XLR output of the SM 500 to the input of the QSC. Is the balanced signal of my SM 500 ok for the input of a slave power amp? I am in need of more power for my Schroeder cabs.