prof, One of the guys I'm helping off-line is using them on carpet and told me they were better with something under them. Sorry but it's been some months and I forget who and what. Butcher block, tile, or marble, something like that. He used a slab of it, that I know for sure. Anyway I was a little surprised it made any difference but then a lot of things are like that so I tried anyway and sure enough, better. In my case instead of a slab I used the same BDR Round Things that were under the Moabs before. Only now they are under the Townshend. Picked up even a little bit more dynamics and detail. Hard to believe. Probably furniture coasters would work, and you will prefer them anyway as if the Bars are like Podiums on the bottom they will be a LOT easier to slide and tweak position that way.