Use Herbie's cone/spike decoupling gliders. They work very well in isolating the speakers so they don't vibrate the floors. I also use them under my rack to isolate from floor borne vibrations. They will also protect your tile.
https://herbiesaudiolab.com/collections/loudspeaker-rack-decoupling-and-isolation/products/cone-spike-decoupling-glider?variant=12645103403063
https://herbiesaudiolab.com/collections/loudspeaker-rack-decoupling-and-isolation/products/cone-spike-decoupling-glider?variant=12645103403063