what i meant was --

if u cut out all sounds under 20hz - it wont make any difference at all to the sound as its under our realm of hearing - all you are removing is bass rumble that most speakers cant reproduce and would a) not make cutting a record nice , b) totally swamp a club if its present

i didnt actually mean remove all bass - i meant remove all bass that wasnt audible

i see your point about the mastering thing - but i will still say - remove it anyway -

also - i high pass filter that removes low frequencies is very similar to a low shelf eq if you dont add any resonance :)