Floor spikes for speakers?

@ronboco I'd agree they're endgame! I will be in touch!

@mojo771 

I have a  pad/carpet over a Tongue and groove oak  floor.  I got pieces of granite from someone who had redone their kitchen. The things they sell to put under spikes, can grind into your wood floor, so I tried the granite.  It worked okay.  Then I tried GAIA One feet and they made huge difference when used on the granite. That was with KEF Reference 5 speakers.  I have since moved on to some Sonus Farber Amati G5 speakers. I did the exact same setup and there is a difference, but nowhere the same. I’m guessing it has to do with the built of the speaker. The Amati’s are much better braced than the Ref 5’s.

All the best.

If nobody minds I’d like to, sort of, hijack this thread. What about spikes going into Black Diamond Racing discs on a wooden second floor?

I have a 100+ pound integrated amp, a streamer and a turntable on a Quadraspire bamboo shelved rack. 
If the recommendation is for some kind of separation between the floor and the rack what should I get?  I have, and love, IsoAcoustic footers on my Sonus faber Serafinos but I don’t think those will work under my rack. 
I appreciate your thoughts. 
Ken

Oops. I meant to say the apes are on my equipment rack. 

Let’s try this one more time.  Not “apes” but “spikes.”