ChrisR

yes, I suppose QS-8 will be better. I suppose I said QS 4 becuase i'm more of a budget kind of guy, and they are cheaper than the QS 8's. His system is half movies, half music as well, not mostly or exclusively movies. Personally, I really like my M3's in the back, even for movies. It also depends on room size, shape, and personal preference.

To conclude, go QS 8 if you have the space and budget, and enjoy how they will sound for multi channel audio.