Tonearm mount to the plinth vs arm board vs rotating arm board vs isolated tower

Essentially the problem is that the tonearm and cartridge are designed to have resonant frequencies Fr around 8-12 HZ (well below the lowest speaker frequencies) which ARE in the range of *very low frequency* seismic type vibration coming from the floor. So, that structural vibration can excite the natural frequencies Fr of the tonearm and cartridge. Sadly, damping techniques are not very successful for these *very low frequencies*. If they were LIGO wouldn’t have had to wait 20 years for the development of sufficiently good isolation techniques to observe gravity waves, they could have used damping techniques. But isolating the turntable from seismic forces is very effective, especially when the Fr of the isolating system is 3 Hz or lower.

The ''compounds similar to paint'' as well ''the isolation'' will not do.
There are many kinds of isolations as well many kinds of paint. 
Problem of notions without boundary conditions are the same as
sets theoretic  problem of extension. ''Set of all sets '' is example of
paradoxes  in the set theory. One need to somehow determine what 
one is talking about, Otherwise quantifier ''all '' can imply the whole 
universe + the added parallel one.

Huh? What the ding dong? 😳 When I use the word isolation I’m referring to the only real kind of isolation. If you’re still unsure what I mean let’s see a show of hands. 

Have you guys ever seen Halcro’s photos of the interior of his Halcro preamplifier? Something like that in black.

Geoffkat, I have oil + spike isolation in my Kuzma and pneumatic
feet isolation  under my Technics SP 10 with Obsidian plinth. In addition to mentioned  Kuzma isolation I have sand filled  base plate which is isolated with 3 spikes from the rack. Which one would you
call ''real'' ?