I still thought the BD sound was better than what I heard in theaters. The theater sound didn’t have enough bass, punch, or impact. The star wars theme in the opening crawl didn’t have near the impact I remember it having when I saw ROTS in the same theater. Although it is possible the speakers haven’t been maintained well.
But are we certain there wasn’t multiple sound mixes anyway? And I know I’m in the minority but limiting the center channel (and the center channel only) makes sense. Ensures the dialogue is always clear and constant. To me dialogue shouldn’t vary in actual volume. The acting can Use expression to “imply” difference in volume but the actual volume of the audio should stay constant. Old movies often did this and it worked well. When somebody whispers it’s still the same volume yet there’s no trouble discerning that it’s a whisper.
Note that I’m ONLY talking about the dialogue/center channel.