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Re-phrasing it, then ----

For certain there are lots of ideas around about plinths and there's no real quarrel with thinkiing about it and trying it and listening to it and rethinking it and re-trying it ..... but ::

To re-phrase the question, there is one specific-recipe plinth, for idler-drives in general, which is comprised of :

* Stacked high-grade plywood, usually birch, necessarily high mass.
* Each ply layer clamped and simple-wood-glued in place.
* Internal cut-outs designed to closely surround mechansism, without touching.
* Turntable mechanism fastened securely, minus springs / compliant elements.

This recipe is the one that seems to be the worldwide solution to taming the Garrards, Lencos, Rek-Os and even the older Thorens tables.

My question isn't whether I should add sorbothane or Mdf or drywall to this existing recipe, but:

* Can anyone posit the general "why" of this specific plinth recipe ? Are we guiding the motor & bearing resonances out and away, or running them around in circles until they're exhausted ?

* Is there any consensus on directionality (vert or horiz layering) or actual number of layers ---ie, more thin plys versus fewer thick plys-- ?

Regarding all the "try it and listen and judge for yourself" tips, well, I'm on the third try now. I'm already doing that now. I've done a simple-frame plinth, a chiselled-out plinth and now I'm trying to get at the prevailing wisdom plinth ... which is the stacked-glued-birch-ply version.

What do you think is the principle of this one ?

Thnx,

J.




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