This is one subjective review with no measurements to show. The reviewer did mention the Marantz sounded better a few times but if you carefully read the review in its totality as well as between the lines, you may come to the same conclusion as me. That is, he really didn't think they sound that different, meaning, the Marantz sounded better to him when he listened hard for it in certain parts/scenes of the movie but his tone indicated to me he thought it was better probably because at $1,200 more expensive than the Denon it has to be better.
Anyway, reviews are always good to read but I will be getting one just for the look and it is the only natural upgrade path from the AV7005. If I go with the 4520 I have to not only sell the AV7005 but also 3 power amps with a total of 12 channels, not an easy path at all.
