I use a Minus K BM-1 isolation platform. This is an industrial product - isolates about 10x better than a Vibraplane (or any other air-based solution), and even outperforms 5-figure industrial active isolation solutions. In fact, the Minus K BM-1 can be used to isolate a SEM (Scanning Electron Microscope) to be used on the second floor of a building. The Minus K BM-1 is also very popular with AFM makers (Atomic Force Microscope). Bottom line: you can go with audiophile/consumer audio solutions which will be inferior while paying a 50% dealer premium, or you can go with an industrial solution which will outperform anything in the consumer audio world and really get your money's worth. Minus K has just released
a new isolator called the BM-6 which has almost the same performance as my BM-1, but at about half the price (under $2k). The new BM-8 to be released mid-Summer goes toe-to-toe with the BM-1 in a much more WAF-friendly form factor. Finally, the Minus K isolators are completely passive, so there are no facilities required for power or air - just plug and play. I'm a mechanical engineer and an audio restoration professional - I know of what I speak. I currently use the Minus K BM-1 with 75 lb granite surface plate under my Simon Yorke S7. Not only will Minus K produce audio nirvana with your turntable, but absolutely no external vibration will reach it. As proof of this, one Minus K user put their AFM on a suspended floor, and had 8 scientists jump on the floor at the same time - there was NO vibration transmitted to the AFM.
a new isolator called the BM-6 which has almost the same performance as my BM-1, but at about half the price (under $2k). The new BM-8 to be released mid-Summer goes toe-to-toe with the BM-1 in a much more WAF-friendly form factor. Finally, the Minus K isolators are completely passive, so there are no facilities required for power or air - just plug and play. I'm a mechanical engineer and an audio restoration professional - I know of what I speak. I currently use the Minus K BM-1 with 75 lb granite surface plate under my Simon Yorke S7. Not only will Minus K produce audio nirvana with your turntable, but absolutely no external vibration will reach it. As proof of this, one Minus K user put their AFM on a suspended floor, and had 8 scientists jump on the floor at the same time - there was NO vibration transmitted to the AFM.