Wow, a lot of interesting mythology here.
Iconicaudio, This is a very simple problem from the perspective of a turntable. You need to keep all vibration higher than 3 Hz from getting to the record and cartridge. That requires a mechanical filter tuned to less than 3 Hz which requires knowing the exact weight of your turntable. Check out the MinusK web site and look what it takes to order one. Minusk makes the best isolation platforms in the world today. They started making them only for scientific equipment then they realized they were missing out on a huge market, audiophiles. They are not cheap but this will give you an idea what it takes. If the web site doesn't ask you the exact weight of your turntable and have platforms broken up into 4 or 5 ranges then forget it, like Critical Mass which is nothing more than marketing BS. MinusK will also tell you what frequency the platform is tuned to given the weight of the turntable. There may be other less expensive and viable options on the market like the Townsend platform but I have never played with one. There are many poorly tuned or unstable turntable suspensions out there.
Iconicaudio, This is a very simple problem from the perspective of a turntable. You need to keep all vibration higher than 3 Hz from getting to the record and cartridge. That requires a mechanical filter tuned to less than 3 Hz which requires knowing the exact weight of your turntable. Check out the MinusK web site and look what it takes to order one. Minusk makes the best isolation platforms in the world today. They started making them only for scientific equipment then they realized they were missing out on a huge market, audiophiles. They are not cheap but this will give you an idea what it takes. If the web site doesn't ask you the exact weight of your turntable and have platforms broken up into 4 or 5 ranges then forget it, like Critical Mass which is nothing more than marketing BS. MinusK will also tell you what frequency the platform is tuned to given the weight of the turntable. There may be other less expensive and viable options on the market like the Townsend platform but I have never played with one. There are many poorly tuned or unstable turntable suspensions out there.