DIY speaker isolation base for a wood floor

I think it’s best to couple the stand to the floor and decouple the speaker from stand, correct?

Do you guys feel like isoacoustic isolation stands are good for decoupling speakers from the stand?

Use marble tiles with rubber studs underneath:is the best solution.

Maybe other methods are better than spiking but and I say but, my isolation bass helped on the low end of the audio sound spectrum.

If there was no such thing as decoupling we never could have detected and observed gravity waves. The only challenge for decoupling for audio is how many directions 🔜 🔚 🔝 you can decouple from and how low a resonant frequency Fr you can achieve for each direction. My airspring Nimbus of yore, for example, decoupled in all six (count em!) directions with Fr as low as below 1 Hz. The lower you go the higher you fly. 
In other words decoupling is not (rpt not) synonymous with damping. Damping techniques on the other hand 🖐 cannot affect extremely low freqjencies of vibration. That’s why mass-on-spring devices must (rpt must) be used for vibration in the range 0-20 Hz. You can also think of iso devices as anti gravity devices, if that helps. By the time you get to 20 Hz you’re already 95% effective. So, where’s the beef? 🍔