Scott Dorsey wrote:
Rigel Russell wrote:
How about an isolation pad (I think Auralex makes one), to isolate the
sub(s) from the floor. Some bass traps might also help. And turn it
down.
To enjoy loud music OR loud home-theater in an apartment setting might be
un-realistic (with rare exceptions) - even in NYC.

Nope, this kind of thing is usually structure-borne. All the isolation
pads and traps in the world won't do any good when the vibration is being
conducted through the building frame.

The floor isn't attached to the frame? I don't remember the OP saying it
was a basement apartment, just an apartment.

Austin