Hey, I can get a 1506 for 344 CND. Brand new, from the store, authorized dealer and all that jazz. Would I notice a big improvement over my current, sony DE-597 ? The denon states 75 wpc while my sony is 100. But i know these numbers don't really mean much... is it safe to say that the denon's power will shit kick my sony's. So, to wrap up, is this a good deal? for a good/better than my sony receiver?