to toddverrone:
With a heavy speaker like my Merlins (85 lbs. ea.) they are rock solid stable on carpet. With a much lighter speaker I don't know. However the rubber base of the Gaia prevents the footer from sliding so I use corian boards with large felt discs on the bottom on my wood floor just so I can slide them around. On carpet, a wood, corian, marble, glass, granite, etc. board by itself would provide an even surface and allow you to slide the speakers. The photo of the Kef Blades at the Isoacoustics website, for example, shows a glass or acrylic board between the Gaia footers and the carpet:
http://www.isoacoustics.com/products/gaia-series/
With a heavy speaker like my Merlins (85 lbs. ea.) they are rock solid stable on carpet. With a much lighter speaker I don't know. However the rubber base of the Gaia prevents the footer from sliding so I use corian boards with large felt discs on the bottom on my wood floor just so I can slide them around. On carpet, a wood, corian, marble, glass, granite, etc. board by itself would provide an even surface and allow you to slide the speakers. The photo of the Kef Blades at the Isoacoustics website, for example, shows a glass or acrylic board between the Gaia footers and the carpet:
http://www.isoacoustics.com/products/gaia-series/