Given your limitations it would seem best to go with the Epic 40 and the larger receiver. The reason being that in your current room size the Epic 40 is a great fit. If you ever move the system to a larger room you could look at the M50s at that time since the only difference between the Epic 40 Home Theatre System and the Epic 50 Home Theatre System is the M50s.

Ian Colquhoun
President & Chief Engineer

Ian Colquhoun
President & Chief Engineer