I usually cut everything below 40Hz (-inf dB). When you cut something away you affect other frequencies. In this case you hear more bass, just the contrary from what you did.

A lot of unhearable low sounds just gives a lot of work to amplifier. If you take that away, your amplifier(and the amplifier in the club, etc.) has more power to push the remaining frequencies.

I noticed that a lot of new stuff from The Advent is heavily cut on the low range(probably up from 60-80Hz). When I play them out, it can go really loud without the sound system falling apart. I guess it's ok for tunes that don't relly on heavy bassline action.