Sturdy Turntable Stand

Not too make to fine a point of it but the really cool thing about low frequency seismic type vibrations, generated by the Earth crust and traffic mostly, is how super strong they are. 🏋🏻‍♂️ They can vibrate 700 lbs like it was a feather. People think they’re safe on concrete slabs, too. If mass was the answer LIGO would have built a massive stand for their electronics to detect gravity waves. But they didn’t. They built a spring isolation system. Just when you thought it was safe to go in the water. 🦈

uberwaltz,

"...which then sit on steel pucks on my tiled floor with felt cushioning them."

Is the whole floor tiled or just area under those steel pucks?

Check out Timbernation.  There are options way under $3k. They will also custom make anything you want.

Uberwaltz if you can jump up and down in front of the turntable and put the edge of a stethoscope against  the platform with music at a moderate volume and not hear an increase in the volume through the stethoscope you are good to go. No other mods needed. Next put the stethoscope against the base plate of the Garrard. You should hear no increase in volume. If you do you have a plinth issue. Turn the turntable off and play another source. Listen to the platter mat on and off. 
A sturdy stand on a concrete floor is always the best. Trying to predict which plinth and turntables are going to have trouble is difficult and frequently surprising. Some turntables depend entirely on their stand for isolation others you could could put on a folding table and they will do fine.  

*geofkait*
So, what do you use or recommend?