My brother had a Boss 600 pushing 2 RF Punch 12's in separate bandpasses. It actually didn't sound too bad... when it worked. Plus, it wasn't any louder than the Punch 60 he had pushing them before. The Boss CAN max at 600w, but RMS, the only thing that matters because that's what you're gonna be getting, is like, 3, or something rediculous like that. Plus, it was always shorting, always blowing fuses, and just generally wasn't worth the beer sledge it got thrown away with. My advice--- go to Best Buy, Circuit City, or Crutchfield, and look for scratch & dent or returned items. I got a Pioneer 400w that had been returned for $280, a good $100 or so off. Don't run, don't sprint, but do a massive burnout and DRIVE away from that Boss!