Micro SX-8000 II or SZ-1

Peterayer, what Tuchan is suggesting is simply a fixed separate platform on the same plane under each component instead of one large one for all three. Setting up of belt tension is no different from them sitting on one platform. Theoretically this way you're isolating each of the 3 from interacting with the others mechanical resonance.

Peterayer, in Tuchan's set up there are 3 separate fixed platforms sitting on top of a larger shelf. There's no movement in any direction unless intentional. Quality 4 point active air bladders will eliminate the issue you mention. Even then the affect of passive one loosing moderate level depends on the turntable setup or the equipment that's sitting on top of it. Personally I'm not a fan of air platforms under high mass tables, but that's relative to my equipment and tastes.