I changed my order to a pair of M22's. After reading more reviews, the M22's are the ideal mains for me (mostly movies), and looking into timbre, I experimented at the retailers speaker rooms, it does make a difference. So instead of mixing the M3s with the M2 as a center, I will build out starting with M22 mains. I played with my current surround switching between 2.1, 3.1 and 4.1. It's noticeable when you switch but it doesn't take long to adjust. I can live with 2.1. I even left it in 2.1 for 2 days now and my wife hasn't even noticed!