slatedeck double plinth for 401
- Thread starter tubeyou
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There is probably the template for the turntable cut out in the library at Vinyl Engine. Other than that, I'm not sure what you need - the arm will need whatever hole(s) it needs, but that template will be for the arm, not the table or plinth.
Not sure what you mean by doubledeck, but I assume it means two layers. I would imagine that how they are stuck together would be proprietary information, even if, in fact, it is pretty obvious - the company wants to sell you a plinth, not do your R&D for free.
I have some memory of reading that Corian actually isn't a particularly good choice for a plinth. I cannot comment on whether this is actually correct or not. Kenwood and a couple of other companies made very good turntables that had plinths that looked like Corian but they were actually mineral filled, and may have behaved significantly differently. And the comment may have been made by someone who simply dislikes mass loading, in which case it may have had only ideological justification. But it may be that Corian has some objectionable resonant behavior. It would be worth doing some research before plonking down your money to buy the stuff. Or it may be that doble stacking two layers of Corian will damp out the bad behavior, and work very well. But I cannot guess.
Not sure what you mean by doubledeck, but I assume it means two layers. I would imagine that how they are stuck together would be proprietary information, even if, in fact, it is pretty obvious - the company wants to sell you a plinth, not do your R&D for free.
I have some memory of reading that Corian actually isn't a particularly good choice for a plinth. I cannot comment on whether this is actually correct or not. Kenwood and a couple of other companies made very good turntables that had plinths that looked like Corian but they were actually mineral filled, and may have behaved significantly differently. And the comment may have been made by someone who simply dislikes mass loading, in which case it may have had only ideological justification. But it may be that Corian has some objectionable resonant behavior. It would be worth doing some research before plonking down your money to buy the stuff. Or it may be that doble stacking two layers of Corian will damp out the bad behavior, and work very well. But I cannot guess.
Thanks Nat for your quick and thoughtful response. Forgot about Vinyl Engine. Just the thing I need to look into. I do have some experience with slate plinths as I built one for my modified Lenco 75. It is on Lenco Heaven called the Excalibur. Never again. The slate was so hard to work with. Built it out of slate, aircraft aluminum and sorbothane sandwiched together. Fantastic sound. Unfortunately due to medical issues I had to give it to my grandson as it weighed 120 lbs. Also built one out of cld and veneered it with clouded maple. Saw a slate deck by Slatedeck in England. Had footers supporting a slate slab and then small pillars supporting another slate slab that housed the Garrard 401. Would like to have local cnc shop cut out Corian after researching templates. Friend of mine built a plinth for his lenco out of Corian I supplied him with and it was remarkable. PTP Audio run by Peter R. , member of Lenco Heaven makes a Solid 12 TT that is rated Class A by Stereophile magazine. My experience with Corian is nothing but positive. I really do thank you for your thoughtful input. Now to research templates on Vinyl Engine. Thanks again.
Is it possible for a plinth to be too damped? I've found that too much damping of a tonearm can make for lifeless reproduction, and sometimes record weights can have a similar effect. So I would recommend testing as you go, the single layer, than stack two layers, then put the sorbothane between, before anything is glued or permanently attached, It's not like anything will move on its own in your twenty or thirty pound stack.
Macaroonie
Super Member
Either real slate or corian is a good choice , and sandwiching with sorbothane is a plus too. Perhaps an easier and cheaper option would be to use ' Green Glue ' which is a visco elastic adhesive. Comes in a squish tube. You want to spread enough glue around with a comb spreader such that when it sets it is about 1/16 thick , perhaps a little more. You will then have made what is referred as a constrained layer.. In essence the superflous resonances get converted to heat in the green glue.
For doing your cut outs convert your template to a .PDF scaled to actual size and take your plinth to a water jet shop. Great way to have stone , composites , even wood cut accurately.
Good luck with your project. M
For doing your cut outs convert your template to a .PDF scaled to actual size and take your plinth to a water jet shop. Great way to have stone , composites , even wood cut accurately.
Good luck with your project. M
