I am currently driving my system with the 2805 in a 20x15 with vaulted ceilings room. When I move down to the basement it is much bigger and I'm driving a 7.1 system fine.

Randy

Denon 2805
Axiom M60's VP150 EP350 4-Qs8's
Sanyo Z2 Projector
Panasonic S97S DVD HDMI

ps I prefer Denon or HK over Yammy's just my 2 cents.



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