Summary: This supposed to be Onkyos compitition? PLEASE.No THX cirtification? And weighs less than HALF of the Onkyo TX-NR5010!!! I got a smoking deal on the Onkyo TX-NR5009 for $1, 997 on Amazon. Really do yourself a favor and buy the ONKYO. It a beautifully made peice of equipment. Its fully THX certified. The unit itself is so beautifully made that you will hesitate hooking it up for a couple of days just to look at its gorgeous huge transformers. Trust me.
Summary: Upgraded to this Denon becasue I have been waiting years for a zone 2 HDMI option. The 4520 has a "zone 4" pass through... Why? The lower end Denon's have a Zone 2 HDMI independent signal. Had to go down to a lower end Denon and purchase an additional amp to power additional zones as the 4520 has 11 channels. Other then that this receiver is a monster.