I purchased a five CBM-170, one VTF-2 system and was running it with a Marantz SR-5000. About six months after the purchase, the Marantz fried and I had it repaired. About six months after that, it fried again. So instead of fixing it again, I'm in the market for a new receiver.

I think I had problems with the SR-5000 since the CBM-170's have 4-ohm impedance and the high current flow was more than the receiver could handle. So, what are some midrange ($400-$600) receivers that are specifically designed to power low-impedance speakers? I'm considering the H/K 525 (if i can find a deal) and the Outlaw 1050 (what is this about a 1070?). I've heard NAD is good, but I think they're out of my price range. Any other recommendations? Has anyone else had a problem with the low impedance?