Axiom Home Page Forums General Discussion Home Theater Placement of M60/VP150 in projector screen alcove

I've got the M60s etc... in a similar layout as the one you depict. IMO you should consider bringing them out from the media niche (I don't have that option) so that the right M60 would occupy the space your SVS is in your diagram.
It has been my experience that the niche adversely affects the soundstage of the M60s. When I had mine 4 feet out from the niche rear wall (for painting), and well clear of the niche side walls, they REALLY opened up.
Give it a try and I'll bet you hear the same thing.