Thread: Simple question about subwoofer frequency response

For slightly less transfer to the floorboards it's possible to use a slab of granite or marble under the sub. I had a 2'x2'x1" slab of granite cut (live on a 12th floor with neighbors above and below) for mine and it had the added benefit of cleaning up the bass a bit.
As far as recommended freq. resp. the guys have said it all: lower is better. Powerwise, 150w should probably be enough for good bass reinforcement in a 2000 cu ft room. I'm a big fan of the partsexpress stuff, they have some great easy to assemble kits! The 10" Titanic MKIII would be more than adequate in your apartment.