I have a 5.1 sound system (thats 5 tweeters and a sub, for all you non-music people), and I often crank up that bass when listening to techno/drum n bass, just cos it feels good.
I was wondering though - what are the chances neighbors can hear my music?
They haven't ever complained, but even when I used to have a drum set they didn't complain... So I dunno. Does sound travel easily through walls?