I personally have never really felt a need to adjust the sub level between music and movies. But I know a lot of people do. And I just read the manual from a sub that more or less says that due to the C-weighting scale and/or the Radio Shack meter's less sensitivity at low freqs, that you should increase the sub level in between 2 to 6 dB when setting up levels to compensate. I have always just set my system up with matched levels all the way around with Avia. But then if I think, that if I did want to change levels, how would I do it? And to be honest, I've always been more happy with the level for music, than for movies. For me, sometimes the bass is too loud for some movies. But then if I dare to think some more , maybe I just have a good room and a good sub and that's the way it is supposed to be. I don't know. Just curious what y'all thought too. For those that change levels, music or movies, which do you prefer a higher sub level for?