I also think you would see an overall improvement in quality and sound. The Denon has no problems driving combination of 4, 6, and 8ohm at the same time.

Randy

Axiom 60's 150 350 4-Qs8's
Denon 2805
Sanyo Z2 Projector
Prismasonic Anamorphic Lens
Panasonic S97S DVD
10ft DIY Screen 2.35

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85