Would an Isolation TT platform further improve my TT?

Symposium acoustics sells their Segue ISO platform for just this reason, they use their sandwich technology and add a set of 5 special springs to the bottom, I use one on my 70lb Prime on top of a 3" slab of butcher block on top of a lead balloon turntable stand and in another system it really earns praise supporting my Origin Live setup in a much more needed application. These are less than a $1000.00 and available for different weight loads. Enjoy the music.

I will look into the Segue ISO. Looks interesting. My TT is 55 lbs. so the medium platform would cost $549.

Thoughts on the Vibraplane? I think it’s still considered the gold standard. Yes expensive at $2500 but less expensive than other item. 

@rsf507 - You gets what you pays for

Vibraplane ELpF 95% at 10Hz - and a rather pronounced bump at its natural frequency of appx 2Hz - $2.5K plus compressor

Minus-K CT-1 99%+ at 10Hz (vertical), 95% or so (horizontal), natural frequency vertical 0.5Hz (good) but horizontal 2.25Hz (not so good) - $5K

Herzan TS-140 99% at 10Hz in all 6 axes, 90% at 3.5Hz, natural frequency <0.5Hz - $10K

In others words the extra money goes to dealing with 3-10 Hz and in more degrees of freedom. As 3-10Hz is where seismic activity is (pace Townshend et al) I’d at least go with the Minus-K as this is the sweet spot for performance vs price and on a rigid stand which isolates form horizontal transmission (i.e. translates seismic activity into mostly up-down) should perform well. Plus the Minus-K is completely passive.