spring loaded platform non-suspended turntable

Since my place is old and I live on the second floor, isolation is a must. I'm certainly getting feedback through the floor, no music above 90db. I bought a stand from a research equiptment re-seller, it's made by Newport, not audio jewelry, but not horribly ugly either. I'm in No-Cal so such business are available in my vicinity. It's built to handle very heavy things. I'm going to go for the Minus K since it's free from the need of a compressor, and is made in the US. We will see.

Hello

I have installed the Minus K, it works just as advertised, no feedback which
has allowed an enormous amount in detail and image solidity to be
retrieved.

The process is a little jarring at first, my turntable is so heavy I needed to
move
it in pieces, then reassemble, it's not weighted evenly so I need to use
ballast to get the weight distribution correctly set-up.

I must admit, it's weird having such a heavy object virtually floating, it
reminds me of the film Gravity, I push it and it just a bit and it moves, then
returns exactly where it was. On start-up, the TT turns as the torque sets it
in motion, and then returns to it's place.

I can jump up and down next to it and it is completely impervious.

I am using a Newport stand made for scientific experiments. The legs frame
are made from extruded aluminum, hollow but extremely rigid due to the
form and how it all attaches. I bought it at a wholesale company which
specializes in medical and scientific equipment re-sale after companies
change gear, kinda like us actually.

Will need to continue the evaluation process but for now, I think it works
very well, haven't found any downsides.

C