Hi everyone,first post, I've been reading this forum for a couple of years now, and find the suggestions/advice to be great! I'm s-l-o-w-l-y putting together a system,(have the 950 for starters)and I am ready for some amplification. Here's my question, I would like to get 3 M200's to power the fronts, but how much power do I need for the back speakers? Would using M200's also for the backs be overkill? Dependant on type of speakers? Thanks