Anything you can put between spikes and carpet?

I have a thick granite slab under my speakers, and it made a good difference, because the speakers were more stable. I also use Herbie audio's Extra Thick Hush Puckies between the spikes and the granite.

I had to deal to deal with the same issue. My Tidals don't have spikes but the footers need to couple to something solid. I ended up being very happy with squares of granite (see photos in my system description.) The bass tightened up very nicely compared to lighter weight limestone tiles I'd used before that. The polished surface of the granite is a flatter plane than the surface of most concrete floors, no problem with uneven contact. As to worries about not being coupled to the floor compromising sound, one just has to try it and see I suppose. I don't see how the coupled mass of heavy speaker and stone slab is going to be making any movement of sufficient amplitude to diminish performance though. The experiment isn't particularly expensive, a stone supplier/kitchen remodeller only charged me $100 for two good sized slabs with polished edges. After replacing the carpet in our home with a floating strand bamboo floor, the speakers sound just as good on the floating floor as they did on stone slabs. We did put down a high quality acoustic foam sound transmission attenuating underlayment.

It sounds like the feet on your speakers are too fat to cut through your thick carpet and bight into the wood floor underneath. If that's the case, thin spikes should solve the problem. If you call The Cable Company and tell them what you need, they should have it right in stock.

Ok so I almost hate to bring this up but is it better to try and couple the speaker to suspended wood floor via sharp spikes or isolate it via pads made of concrete, tile, or stone? Thoughts"

I've had this issue before..just enlarge the hole where the spike is with a leather punch or nail...you won't see if you move the speakers later. This is more stable than putting a heavy slab on the carpet