Audiosens...maybe, as the main point for me anyway is to keep the speakers's vibration out of the floor which can act as a passive transducer of sorts...there's a simple test I demonstrate to my friends who pretend to be paying attention...play something bass heavy and touch the speaker box near the floor...feel that? Now touch the floor near the speaker...no vibes...now get me a beer...wait...forget that last part...for now.
