The Q's fill my 900 Sq Ft room just fine and can handle lots of power in either 5.1 or 7.1 mode. If you don't have the wireing setup for 7.1, then 5.1 would be fine. You still would place the Q's along the side walls slightly behind the seating area.

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