Tried different things with speaker mounting over the years, solid stone floor and found spikes worked well with the different speakers I’ve had.
The big Impulse H2’s played nice with a heavy floor tile under the spikes, with other speakers the slab just sucked the bass out.
Go figure, maybe not a one stop solution for every setup?
Happy to have settled with what I have, best sounding combo for my speakers.
Herbies Sliders sat under speaker outrigger feet, and sat in Isoacoustics Gaia carpet spikes.
A faff to get them fitted, but worth the time.
My systems got some low end welly, with speakers mounted this way there’s no bass interaction at all with the floor.
https://i.imgur.com/78O0AK9.jpg
https://i.imgur.com/Zna9XXG.jpg
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