I currently have a Yamaha 640 amp powering my MS Avant full size setup. I am considering upgrading my amp to a Denon 2803, but am wondering whether it will be a good match. The yamaha has a nice warm sound, but for not much money, I can upgrade. Does anybody hear run their MS speakers with a Denon amp? Please can anybody advise me whether this is a good idea. Any help would be great!