Another vote for the Denon 3805. I have it powering four 4ohm M80 speakers plus the 6ohm VP150. Only at close to reference levels do I detect any distortions. I do have a very large HT room, so I will eventually get a separate amplifier and use the Denon as a pre/pro. But still, for the price, the Denon is clearly the best receiver/amp in the market today.

4 M80s/VP150/EP600/Denon AVR-5308 & DVD-2910/
2 QSC SRA3622(1100wattsX2)/Carvin 1800HD(600wattsX2)