NoR - I purchased the 663 several weeks ago. I am now saving up for a set of Axioms. The original (and current) plan is to go with an M60 - 500 system. HOWEVER, reading all the posts in here about the journey to the M80 mecca, I am, of course, second guessing myself. I had posted in a separate thread earlier asking about the 663 and the M80's. Response there was about what you are hearing here. Probably fine - but no one will say with the certainty that they do on the Denon. So, long story short, I think several here, with me on the list will be interested in your review of the M80 performance related to the 663. Definately looking forward to it..........Argon
