OK folks, let me back up a bit. I'm trying to get a sense of certain sets of speakers (I don't have the luxury of going and listening to a lot). My old speakers, which were floorstanders, had a range of 38hz-20khz (good, average???). So as I;m specing new speakers, I'm just trying to get an idea of a "comfort" zone in terms of range....I have seen floorstanders at the low end anywhere from 20hz-40hz, and at the top end anywhere from 20khz-100khz.....but there is usually a sweet spot that most fall into. That is the sort of thing that I'm trying to figure out. I realize it's not the best way to go, but in my situation I am buying everything "deaf" so to speak. As far as the D/B I'm finding a number of companies only give you the range, not the D/B.