Under my tower speakers -- Isoacoustics Gaia, other options?

@hilde45  - Are the bases already drilled/tapped for spikes/feet? If so, I would recommend a set out outriggers from parts-express. It will provide a bit wider stance, increasing stability, and provides a good platform for the spikes. The spikes will pierce the carpet and go down to the concrete, providing a nice stable base for your tower speakers. You can still use them if your speakers are not tapped, but you'll need to drill holes for the anchors. 

I use an anti-matter reactor system that keeps my speakers about 2" 

above the floor surface at all times. I have found this to be 

the best way to eliminate all unwanted vibration. Available through

our friends at area 51.

Of all the tweaks/upgrades I’ve employed in my systems, the Townshend podiums made the largest improvement, by a wide margin. They are transformative. Highly recommended 👍🏼

I used an inexpensive cork/rubber disk to little effect.   Then I tried the IsoAcoustics Gaia II and was amazed at the difference.   I’ve got hardwood floors upstairs and vinyl tile/carpet over cement on the first floor.   In both cases the Gaia II footers made a noticeable and pleasant improvement in the sound and soundstage depth. My speakers are XStatic EC/X, 40lbs each, used 4 footers each.  YMMV.

Gaias are very good but Townshends are better.