@sjsfiveo,
I have the same thing: concrete floors -> carpet ->granite slab ->speakers.
Had Herbies footers for many many years. But the Gaias play on a different level - at least in my system. In my case they sightened the bass, improved the "naturalness" to the sound and made the sound stage wider. But also remember that there are others on this forum for whom the Gaias did not work per their expectation.
I love Herbies products and use them under my preamp, cd player and power conditioner. Also have Herbie's tube dampers.
I have the same thing: concrete floors -> carpet ->granite slab ->speakers.
Had Herbies footers for many many years. But the Gaias play on a different level - at least in my system. In my case they sightened the bass, improved the "naturalness" to the sound and made the sound stage wider. But also remember that there are others on this forum for whom the Gaias did not work per their expectation.
I love Herbies products and use them under my preamp, cd player and power conditioner. Also have Herbie's tube dampers.