"Edmond,"
Just a brief note to put another +1 on the 3808 + Axioms. I love my setup and the Epic 80 sounds fantastic. When I did my initial setup, I ran Audessey.
I found that the distance setup results were fairly accurate, but did find that recalibrating with an SPL meter led to some small changes and this was mostly for personal preference moreso than it was that the volume levels were actually imbalanced. For example, I like to run my center channel +3 dB from the other fronts, and my sub ~3-5 dB higher, so I bumped these up manually afterwards, but the SPL meter helped to fine tune).
In my room, running with the Denon-applied EQ and without it, I do not notice a large difference, so I think it's something you should try in your room and see if you like it better with or without it. One way or the other, I'm pretty sure you're going to be very happy with the setup.
