I have the m60's in a bigger room than yours with the Denon 2805 and it is plenty loud, especially for movies. Unless you like insane volumes, you probably don't need the m80's

The M80's and M60's are very similar, the M80's just can go louder, not to say the M60's could not make you go deaf


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