I have a BW 603s for my front. HK7200 runs them. Both are probably little over a month old. So this question arises.... Often I wonder at what Volume I should listen to my music. I only have a two channel system right now. For example I play Eric Claptons, Pink Floyds at -25db to -20db sometimes I touch -15db but did not dare to go beyond that. When I watch movies, I keep the volume for most part of the movie at -15db. My Bass and Trebble knob are right at the center. I understand whatever sounds good to me I should be ok with, but at the same time I should also know my speakers limits. I have not done any fancy calibrations to them yet. Pls advice.