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Support table or shelf for turntable

I was hoping to replace my oak table with either a wall mounted shelf of a heavy steel table.
The reason is that I am finding that the oak is picking up and transmitting vibrations to the turntable, a Garrard 401 in a birch ply plinth. I am hoping to move to a slate plinth and wanted to maximize the support strength and reduce feedback.
Here is a link to the shelf and here is a link to the table. Both examples of what I'm looking at.
Shelf would be mounted to concrete wall. Table would stand on concrete floor.
Thanks.
128x128noromance
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islandmandan
1,260 posts
 
Noromance, I hope I am not pointing out the obvious here, but the slate, by itself, won't isolate your 401/plinth from your existing table (if I'm understanding this right, not knowing if the slate will be on the top of the plinth, or under it). Isolation from the table is the key to success.

If you would, please report the outcome, for we of curious minds.

Regards,
Dan
noromance's avatar
noromance OP
9,848 posts
 
@islandmandan Yes, I know that the slate will not isolate the table. I want to try the slate plinth as I believe that the birch-ply, while excellent at damping TT generated noise, is also responsible for a little smearing and subsequent loss of some detail. The relatively difficult, and frankly, cumbersome efforts to isolate the table can be ameliorated by wall mounting to concrete and keeping the structural hardware to a minimum.
geoffkait's avatar
geoffkait
23,365 posts
 
Actually, slate or marble or granite, assuming it’s not too thin, provides significant isolation against rotational forces attempting to bend the plate or slab, by virtue of its mass and stiffness. I am a big fan of bluestone, the gray blue stone usually used for paving, for its low cost and high mass and stiffness. Thus, the effectiveness of these heavy thick stone slabs with springs.
bdp24's avatar
bdp24
9,845 posts
 
I'm just happy to see Michael Green's (Room Tune "guru") proposal of component "tuning" by constraining outer structures with spikes falling out of fashion. Wrongheaded then, wrongheaded now, wrongheaded forever! We want decoupling (isolation), not coupling, right?
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noromance OP
9,848 posts
 
I have to admit all this springs stuff has come as a bit of a surprise. Mr. Kait and Mr. Green appear to have some interesting online correspondence. And more interestingly, an interest in Peter Belt who I remember from the 80s. Indeed, I sat in on a few black foil triangle demos. 
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