Hey found an old looking QSC power amp. It had 5.1 on the front and was rated at 120 watts stereo. Its a rack unit about 2u high and is only 6 or 8 inches deep. Anyone know anything about these? would it be a good buy for 99$ or lower? I found it in a local pawn shop and I'm tempted to try it out. I'm out of town so I can't try my equipment on it though.