I will chime in only because I used the following before getting the Townshend seismic podiums. My room is on the second floor carpet over suspended wood floor. I used the following: 1) Herbies gliders, 2) Spikes through carpet to wood sub floor 3) No spikes 4) Flagstone platforms with spikes and sitting on the carpet. The Townshend was the only solution that firmed up the bass, decrease a bass node I was having, brought a larger soundstage and depth and helped place the instruments more accurately in the soundstage. I bought them on e-bay direct.