First off welcome to the board.I think that's a pretty good price for the 635.It will run the M80s pretty good on it's own but don't discount what a good 2 channel amp will do for your system.You're going to be quite pleased with the M80s.I know I have been for the past two years.

Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud