Dont forget about the Vibraplane, comes in active or passive models, performs flawlessly.Good idea, but the Raven One would be too light to let the Vibraplane performing at its optimum level. Same is true for even the heavier Raven AC.
So, that's my own experience with the Raven AC, you need some extra weight on top of the Vibraplane - in case of the Raven One approx. 40 kg -, then place the turntable on it.
What Emailists wrote above, seems to be interesting: "active isolation platform, but SRS makes a specific platform for the table." Any further informations available?