Originally Posted by Azaqui
In AVR-X4000 the front/surround balance is off in the all channel stereo mode (mid-rear and far-rear surround speakers dominate the front). If I adjust their levels in setup, the back surround is almost not present when watching movies. Is it possible to set the speaker levels/balance per sound mode?
It's Dynamic EQ. It boosts the surrounds (in addition to adjusting freq response) to maintain surround immersion during movies. But not appropriate for all ch stereo listening.
Instead of adjusting surround levels which (as you found) also mucks up movie performance, either turn DEQ off for all ch stereo listening or adjust the Ref Level Offset parameter to 10-15db which will tone down how much DEQ is boosting. You could also try some of the other music surround upmix modes like Pro Logic II Music.