1) 3D pass-through 2) Advanced circuitry to convert all video signals to 4K 3) Networking functions to play Internet radio or digital music files 4) Wireless streaming of your iTunes music with Apple's AirPlay technology 5) Audyssey MultEQ XT 6) Three-source, three-zone capability with multi Zone HDMI audio/video distribution 7) Seven HDMI inputs and three HDMI outputs 8) Denon Remote App 9) Three-year warranty
1) 3D pass-through 2) pass- through of 4K video signals 3) Networking functions to play digital music files 4) Tact - (not available till 1Q-2013 est) 5) Two-zone capability (audio only) 6) Seven HDMI inputs and one HDMI outputs 7) Emotiva Remote App (date TBD) 8) Five-year warranty (no confirmation on web site but this is Emotiva's usual warrenty term)
You could add the AudysseyPro kit to the Denon 4311 and then you would have a calibrated microphone and the ability to adjust the target frequency curve. This would put you in the $1800 range, but it would be a killer setup that you can get today.
Another option is the Anthem MRX 500 which comes with calibrated microphone and their own room customizable correction (very well regarded) for about $1000