Oh man, this is a huge hate of mine, have been to more gigs than I can count where the bass was just a big, mushy mess with no discernible pitch to it and then when the amped up bass drum comes in you cant tell what is what, to be fair though I like a lot less low end than a lot of bass player seem to like, I will take clarity over huge low end any day
In fact, the only gig I can remember where I thought the bass sounded amazing was when I saw this band in the below video PG Lost live, there bass tone had grit and clarity and didn't sound like mush
[Youtube]