I also experience instances where the center channel dialog is not as loud as it should be, and this happens mostly in the matrixed modes. I know this has nothing to do with the 950, and I do know how the center channel is supposed to sound, being present at the mix of a couple films that I have this problem with. I'm afraid there are simply too many variables; surround modes, competing encoding schemes and processing options etc., that problems like this are to be expected.