Or at least I think it should be obvious. Most days I listen to three or four systems, three of which now have subs integrated. In each of these I find it necessary to adjust the sub output according to the type of music I'm listening to. I love the idea of ideal neutrality and such but I don't live in a perfect world. Relevant info: 1) I'm not a bass fiend by any stretch 2) my music listening is 80% acoustic jazz, 10% classical, and 10% popular [including rock, hip-hop, electro-swing, what have you] and 3) my listening spaces are very well damped. They're all carpeted, spacious, and treated. Whenever I listen to jazz, there's too much bass. For the others I can crank it up. It seems like rock and especially classical can soak up all the bass I throw at them. The issue, though: it's a nuisance to go around resetting subs whenever I switch genres. So I sort of aim for a happy medium but it's not entirely happy since it's never close to ideal. Can anyone offer a perspective on this? TIA.