what isolation under tt,cd ?

Yes,inner flat.I have put soap water on the valves;no bubble.I choose ea for the weight they had to handle.The one under the turn table made the most difference and is missed the most.Are the Bright Star air mass/or big foot sand boxes as good?And yes thank you for the Vibrapod info Mate.With no other help I would have tried,but somehow I figured my solution would be more than 6 bucks.

I use a home made T.T. shelf.On top of the shelf I have a Bright Star Audio Big Rock(sand box) on top of that rests my T.T. I can knock on either the Big Rock or T.T.and hear no noise from the speakers at all.

Thanks Dav.99 I will look for another rock (used I hope) redkwi:What you' use under your data 3 ? I'm the guy 15 mi. from theta.