Another thing to consider is that you could run the system in multichannel stereo to spread out the sound when looking for background music every where in the room, opposed to blaring it out with just the 2 floorstanders. The volume doesn't have to be as high when the music is coming from all the speakers in the room.
Ditto that. After many years I am still shocked how good Denon's multi-channel function is. For non-critical listening I generally prefer the 5 Ch surround mode for the very reasons stated above. Just don't go cheap on the surrounds, as they will play a significant role in this set up. So M22's all around or QS8's in the back would be my suggestion.
