Isolation platforms for turntables

Yeah, move the gear.. maybe the amp between is cool, but therest of it shuld be moved tothe side wall.
I use a seven meter balance IC from thesidewall to my amp between my speakers..
So MY TTs are way far down the side wall from the speakers..

The other way would be more mass in the TT stand. That close NO vibration device under the TT is going to help..
(except a manymulti thousands professional physics device)
So in that position I would leave it with no isolation, and try to make the stand solid as humanly possible. then spike the TT to the stand.

12-19-13: Onhwy61
I suspect your loudspeakers effect your turntable more via airborne sound waves than any structure coupled vibration.

12-19-13: Elizabeth
The other way would be more mass in the TT stand.

I'm certainly no expert, but I agree with the 2 above statements. I think what makes most sense is to try to get those airborne vibrations out of the TT. So the TT coupled to a heavy base is what I would do. Actually what I plan to do over the Holidays with my table (Spikes on my TT and sitting on a sandbox I have yet to make).
That, as opposed to damping / something soft under the TT. If you do that, the airborne vibrations have no place to go.
I also recently moved my rack back closer to the wall and it seemed to help.

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I think if you can move the turntable to the centre of the rack and floats the rack with some kind of support/feet then it should be fine. Adding Symposium will improve better. You can move your speakers a feet or two out form the front wall.

I would place the turntable in the center of the rack away from the left speaker. I use an Symposium Ultra under my table.