Re: How to Lessen Transmission of bass from my Sub-woofer to apt below
As others have said, get the sub off the floor and onto some soft pads. The pro stuff is probably best, but just regular old pillows might be good enough.
With the sub on the floor, sound is conducting directly to and through the floor. Something soft between the sub and the floor will lessen this conduction. Still, the sound waves will radiate and move the floor, and bounce off walls, but at least you can reduce the *conducted* energy in this way.
It should help, but maybe not enough. -ERD50