My basement theatre is 24 X 20 using the M60,s , the Vp160, two Qs8,s and 2 M3,s and a pb 12 for 7.1
I have not sound proofed as of yet ( waiting for the snow to fly )
All I can say is the system simply rocks nice , cyrstal clear and loud .Thats with a tiny Yammy receiver @ 90/channel . I play music in surround mode with all 7 speakers running and the sound is simply awesome . I have a few sound leaks < sounds like the music is being played upstairs in my living room hehehe . When I watch blue ray movies , the house rattles and the windows shake to the point where I think the windows are gonna crack . I am also considering the receiver you are looking at . Ive owned some top of the line Onkyo receivers in the past and the THX versions really perform well


M60,s Vp160 , QS8,M3,s Svs 12 . Yammy 3063 ,Panamax 5100,PS3,Optima HD80 Axiom Air