2. tech-talk
  3. 165118-159058

Isolation for Granite Surface Plate

I see from other threads that using a granite slab as a surface plate for a turntable is problematic. I am currently using a .75 inch thick slab as the top of a Zoethecus rack.  It is isolated from the rack by 4 Hudson 1.25" diameter silicone 20 duro bumpers. Can I do better with a different isolation feet? My wife is very happy with the way this setup looks, so I'd like not to replace the top shelf with a different material if I can avoid it.
oldskoolmark
facten
2,878 posts
 
oldschoolmark -  Here are some links  that might help you understand differences between MDF
https://mdfskirtingworld.co.uk/blog/the-difference-between-mdf/
https://www.weyerhaeuser.com/woodproducts/osb-panels/medium-density-fiberboard/mdf-product-specifica...
If you are interested in what Steve proposed I'd suggest sending a pm to him versus getting caught up with someone else's needless condescension 

gdnrbob
4,445 posts
 
I know that Mr. Vandersteen uses a special felt for marble bases under his speakers, you might want to call or email him.
Better yet, go to the new Vandersteen forum on the Vandy website.
Bob
georgehifi's avatar
georgehifi
10,312 posts
 


oldskoolmark

Try a "half inflated" kids scooter innertube under them, complete (air) isolation worked wonders for me back in the T/T days and now with CD transport also.
Pick your size. (Tom Gillett aka: Sam Tellig of Stereophile put me on to this decades ago)
https://www.walmart.com/search/?query=scooter%20tube&typeahead=Scooter%20tube%20

Cheers George



noromance's avatar
noromance
9,771 posts
 
Granite sounds bad. So does Sorbothane. 
Get a chunk of maple and Nobsound springs. 
petg60
1,486 posts
 
I cannot tell about springs as i have not tried them but believe the ones who did.
If not fancied to above esthetics a possible solution would be solid aluminium up to 1 inch thickness sitting on elastomer material covering entire surface underneath. Much better than granite.

G


More to discover