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Assuming a fairly solid floor, would small sorbothane hemispheres under my turntable be better or worse? Do you want to absorb energy or transmit it?
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Isn't all the padding on a split plinth supposed to isolate the motor from the platter? That's where the Sorbothane goes.
The feet should be coupled to a firm base which is couples to the floor to transmit vibration away from the needle and record...
I think that's the way it's supposed to work.
"fairly solid floor"? I vote no.
You would be negating a virtue of your fairly solid floor. To the degree that the floor is not totally solid (none are), you would furthermore be adding a source of instability between your tt and a slightly unstable support structure.
Assuming no earthquakes, that is.
I'm not convinced of any audiophile benefit. Seems like inexpensively modified hi-fi furniture. An image shows several audio components stacked on top of each other, shared on the limited surface area of the shelves. I think the design-concept functions at the opposite end of rigidity, which tends to be a key-factor when building racks and stands, along with the use of vibration/resonance control devices positioned under each audio component and a dedicated, solid shelf surface area for primary support, with a rigid interface running right down to the floor. If components must be stacked, special vibration/resonance control footers should be implemented as an effective compromise. Furthermore, adding a tonewood board with pads or footers positioned between the stacked components can sometimes be of notable sonic benefit for custom system tuning efforts, IME.
The lack is pretty light and fairly rigid. If I remember correctly Ken Lyons reported advantages in dissipation, which should mean low internal friction. I do not know for sure. It behaves differently from viso-elastic substances which will resonate at a lower frequencies than the lack shelf and introduces more stress-strain cycle for damping. I think the sorbothane would negate in part what the lack self does, but I have not tried the experiment myself.
It depends what kind of turntable you have. VPI's like a solid support to the center of the earth, Linn's like a light "flimsy" support.
nt.
classic DUAL 1009
Cool table! I have one on a shelf, but I have not gotten around to it. Unless someone can respond who has tried it on their 1009, then it is a crap shoot. You will have to try and see. Personally, I shy away from Sorbathane because, to my ears it adds a dullness that I do not like, especially on an idler drive turntable like the 1009, which an exciting sound when setup right. My inclination would be to build a layer birch or marine grade plywood base and then spike it. If that is too elaborate for you, I would brace and spike the dual base. Think heavy for the bracing. You also might what to try rigidly mounting the table to the base after bracing it. If you do this, make your you do it in a way that is reversible. You my prefer the table as originally engineered. Even if that is the case, it will be a fun journey.
Dave
aa
"Once this was all Black Plasma and Imagination" -Michael McClure
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