You can also get a tabletop Vibraplane unit, big enough to hold a turntable. I think the tabletop models are in the $3500-5500 range
Here's a Positive Feedback Online review/summary (from 5 years ago) of some of the industrial vibration isolators that can be used with turntables.
Here's a Positive Feedback Online review/summary (from 5 years ago) of some of the industrial vibration isolators that can be used with turntables.