All seriuosness though,
I had a Denon 900 and a 1400 I have a HK 510 now only reason is somebody had a buzz in a HK65 I bought it still under warranty called you and after a few Phone calls they realized it was the Amp now I have a 510 as replacement but, if it wasn't for 5.1 I'd take my Denons back. it has the same power ratings as the 900 Denon but the Denon is louder at the same volume levels. Although I will not go over 1/2 volume so I cannot tell if the Denon loses power above this but after alot of reviews I it is one of the best integrateds.
As far as I'm concerned if you have to turn your amp up over 1/2 then you need a more powerful one. Especially if watching movies.