This is something that has been bothering me for a while, I love a massive bass sound which has loads of power, but hate it when it involves making my sound muddy and boomy to also make the earth shake. There's been a handful of amazing gigs I've either played or seen where the bass from the pa just seems to have that gut thumping weight to it, but you can't hear the horrible residue of the low frequencies masking everything else. But I have no idea what it is that keeps everything so tight but so huge at the same time. I remember one of the best bottom ends in terms of feel I've come across, were some fairly naff surround headphones (which completely suck by the way, thanks Creative for destroying the development of 2 channel surround in the early 00s apparently according to my computer nerd brother...) which had a "rumble" feature on them, the bottom end itself wasn't that prevalent, but the feel of it every time something blew up or whatever made it seem very bassy. I've got a dual band compressor which I squeeze my bottom end pretty full on with, and that's helped a little, as well as to even out bass response string to string because it becomes very apparent if it's not even with lots of low end obviously. I've also found that alot of boom seems to come from higher bass frequencies, but cutting there too much kills punch, and also there's still a plenty of audible bottom end going on even if it doesn't boom. Wasn't quite sure which bit of the forums this was best suited to, but amps seemed a good shout as it seems like it's probably an EQ or speaker issue mainly.