Try bumping the rears by 1dB and the sub by 3dB, then turn Dynamic EQ off.
I just wanted to update my previous comments, the latest firmware has resolved the lip sync issues. I also re-ran the Audyssey tuning using my iPad and it sounds a lot better with Dynamic EQ on. I really recommend this AVR now.
Depends on the speakers but I hear a difference between 1xxx 2xxx 3xxx in Stereo.
The base entry Denon is the 250bt at £150 so a £300 difference. No it's unlikely you'd notice much difference for 2.0 music. If you want something that is good at both then you'll need to spend on something from Marantz.
Compared to the base entry Denon that's £200 Think il notice much difference between the two for stereo music ?