LP 12 Cross Brace

[Signscape]

Can anyone shed some light on wether brass is something to be able to be used in a Turntable Frame/Plinth or a substrate/material to be avoided.
Reason being I'm upgrading the sub chassis & motor supply on my LP12. While at it I've had the plinth made heavier by adding a solid oak outer frame which is dowelled, glued & screwed on, for no other reason than I wanted a more to scale solid oak plinth. Some will say this is an nono no doubt but I'm thinking of using a brass cross brace as it's heavier and more in keeping with the new weight of the plinth. Brass & wood are both used in musical instruments so should be ok in a Turntable? as far as resonance goes?. I've heard good things about using a heavier plinth with an LP12, but equally a theory of light but rigid for turntable construction. Any thoughts be appreciated.

 

[PRR]

Bells are made of brass....

 

[vinylkid58]

Some will say this is an nono no doubt but I'm thinking of using a brass cross brace as it's heavier and more in keeping with the new weight of the plinth.

I'm thinking you don't need it with the new plinth.

BTW, please post up some pics of you table. Love to see it.

jeff

 

[Signscape]

Just Shellac-ing the oak at the moment so it's kind of masked off. Going to look pretty special when finished so I'll post a pic then

 

[andyr]

Reason being I'm upgrading the sub chassis & motor supply on my LP12. While at it I've had the plinth made heavier by adding a solid oak outer frame which is dowelled, glued & screwed on, for no other reason than I wanted a more to scale solid oak plinth.

What is your new subchassis and motor supply?

And why wouldn't you simply make a new, thicker plinth - say 25 or 30mm thick - out of oak, to replace the stock plinth (rather than encasing it)?

I've heard good things about using a heavier plinth with an LP12, but equally a theory of light but rigid for turntable construction. Any thoughts be appreciated.

A mate of mine made up a plinth out of 25mm thick 'planks' for his suspended Thorens. He said it delivered a much better bottom end than the stock plinth.

So I had a 25mm thick plinth made for my LP12 ... and I experienced the same thing! So thick is good, IMO! Pic attached - the wood is oiled Tasmanian Myrtle.

Some will say this is an nono no doubt but I'm thinking of using a brass cross brace as it's heavier and more in keeping with the new weight of the plinth. Brass & wood are both used in musical instruments so should be ok in a Turntable?

I think you're on your own, here! Sure, brass is heavier ... but maybe its resonance properties will not be a good thing? And not all wood is used in musical instruments. So you need to experiment.

(If you want a heavy crossbrace - maybe tungsten would be a good idea?)

Andy