the bass sound was shaking the apartment , and obviously neighbours didnt like metallica and the likes..
Now >this< is bassline 
Needing eardrums just what I like 
Bleeding is what I meant
I do like the "wobbly" feeling that a solid bassline produces on the body, although by all accounts it's not actually that good for you.
I used to have a pair of
Paradigm PS1000's in the living room that produced what can only be described as "house destroying bass" (IIRC I gave Kevin Wood a demo when he was over).
They shifted enough air that you could feel your eyelashes fluttering if you sat in the right spot and played the right tunes (mainly 80's dancehall reggae from the likes of Saxon, King Tubby, etc), and I could induce physical vomiting in our neighbour when he sat down for a go (although I suspect he was overly sensitive to low frequencies because nobody else suffered to that degree).
I regret getting rid of them now because I haven't found anything that can match their performance for the price I paid (£600 each), and they are no longer available in the UK to buy new