ok. so what's the point of calibrating one's HT? as far as i can determine from all of the posts that deal with the topic, the net benefit of calibration seems to consist in simply determining an objective decibel value for the numbers on your volume dial.... what i have a little more trouble understanding is why you have to calibrate each speaker individually - assuming that the listener/calibrator is roughly equidistant from each speaker, what possible reason could there be for any one speaker to be outputting more or less sound-pressure than any other? i mean, is that all it is? a way of compensating for gains and losses of volume from listening-distance? if so, then what about the poor schmoe who sits next to a speaker running hot when he comes to visit and there's no better place to sit? can someone help me?