Herbies Audio Labs' cone/spike decoupling gliders are designed specifically for this application. I used them on my carpet and will as well on my own recently installed hardwood floors' once the poly finish cures in a few days.
In addition to protecting your floors they also reduce floor-bourne vibrations and bring improved clarity to your speakers. They come with a 90-day money back guarantee so it's a no-brainer.
In addition to protecting your floors they also reduce floor-bourne vibrations and bring improved clarity to your speakers. They come with a 90-day money back guarantee so it's a no-brainer.