Peng,
Thank you for your response.
Yes, I did see that Denon X6400H.
Last year I listened to the Marantz SR7011 and Denon X7200wa. With music I couldn't really tell much of a difference. I know that Marantz touts the HDAM tech but I've seen others on here that don't really notice either. They both were pretty hot to the touch but the audio dealer had them in shelving with hardly any space around the top and sides.
I still haven't ruled out a return purchase to Yamaha (Aventage 1070) but I do like the way those Marantz' look
Z