How to best isolate TT from vibration?

Traffic, subways and other sources of Low Freq. Vibration (that shake the house) are included in my definition of "seismic vibration." The proof that wall mounting is not totally effective is to employ an isolation device under the component mounted on the wall. Even when the house is out in the country, away from the usual sources of vibration that plague city folk.

All frequencies of structural vibration will affect audio performance - especially the extremely low frequencies. Earth's crust motion (which is continuous and has a vibration peak in the range 1-3 Hz). It is a mistake to think that very low frequency vibrations, even in this 1-3 Hz range, do not have audible consequences.

GK, Machina Dynamica

Yeah I've noticed those 1-3Hz frequencies tend to rattle the house when magma seeps into my basement. Gotta get a lava detector.

Good show Bill! LOL

If you don't WALL mount it ,you'll just be spinning your wheels. SYSTEMDEK XII MUST be wall mounted

After trying several changes to mass loading of platforms, mass loading of floor, isoltaors and etc. (some success but not SUCCESS). My final solution was 30 foot long interconnects to get the turntable in a more optimal location. Would have done the wall mount thing if I could have made it work with my room. You will find variance in opinion about whether long ic's between a phono amp and pre-amp are a great idea, but it is something that worked for me. Thanks to one of the agoners, I found an ic that I enjoy for US 200.00 ish so it is sort of economical.