Townshend Seismic Bars

[amabrok]

Do the seismik bars only work on hard floors?

I have carpet over suspended wood floors, and would love to try these..

The Townshend products are the only truly isolating products I have seen on the hifi market (as an ex noise and vibration control engineer).
As long as the correct ones are chosen for the weight of the speaker it will be correctly isolated from the floor. Whether you like the effect of not having the floor vibrating much is another thing...
They won't have any effect on the room acoustics.

FWIW to isolate over the full audio bandwidth the static deflection of the product on the isolator is around an inch. Most deflect a tiny fraction of that so don't isolate at low frequencies at all.

f1eng, u lost me here maybe i am slow! can you please elaborate a bit more

thanks