from my experience (limited) with denon 4311,3808,2310 and yammy 3075.. turn OFF all "extra" processing.
that is anything "dynamic" .... YPAO Volume... ECO mode.... virtual this and that... extra bass etc etc. basically run it as a "normal" 5.1/7.1 and see how that goes. took me ages to understand the denon and same for the yammy i had. ok for computer geeks but not for basic users.
maybe some ideas here http://www.avsforum.com/forum/90-receivers-amps-processors/2099810-official-yamaha-1050-2050-3050-owner-s-thread.html