I have Bose Acoustimass 10 cubes and a sub. I have two cubes on each channel for 200 watts per channel. I have had these speakers for some time now and recently started to dig into placement again a bit further. I have a 16 x 13 ft room. I installed the two fronts and two rears in the top corners near the cieling. The center speaker sits on top of the TV which would place it about four foot off of the floor and about 2 feet in front of the front speakers. I am thinking of moving the fronts and rears down to about half way down the walls level with the center channel. Looking for some advice if this is the right move. It will take some significant rewiring, Another thought is to add four more speakers and go 9.1. If I decide to that I'd like some advice on matching the Bose speakers. Thanks in advance!