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Turnable Rack Vibration

Hi,
I recently moved my Audio equipment to a VTI rack system. As part of the change by Linn LP12 moved from a Target wall shelf to the top shelf of the VTI.
The move has made the turntable far more susceptible to floor and foot fall vibrations... disappointingly and annoying so.
I would like some recommendations on effective vibration isolation for the turntable chassis. I have a 1/2" slab of granite that i am thinking of placing the turntable on and separating the granite from the top shelf of the rack with a series of isolators.
Has anyone had experience with this setup and what isolators would they recommend?
Of course i am also open to any other suggestions on how to best isolate the top shelf for the rest of the components.

Thanks
Neil
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Showing 2 responses by kennythekey

kennythekey
593 posts
 
I went with a Target wall shelf for the same reasons but found that my sound was no longer lively. I also found that the new Target Pro shelf that I bought would actually flex under load. I wrote Target but no response.

Your answer may be a Finite wall shelf: http://www.finite-elemente.de/en/racks/pagode_signature_wall

However, this is an expensive solution compared to the Target. I've decided to take a leap of faith and build a "Flexi-Rack" made from Maple and Brass. I have a current thread going about this here: http://forum.audiogon.com/cgi-bin/fr.pl?htech&1262360875&openmine&zzKennythekey&4&5, but there's even more information over here: http://forum.audiogon.com/cgi-bin/fr.pl?htech&1158841915&openmine&zzJdoris&4&5

I'll be done with it pretty soon if you have some time. You see, I have a similar foot-fall situation. If the rack handles the foot-fall problem and also sounds real good then perhaps there's a way to get off the wall.

Anyway, I'll be continuing my thread and post my findings.

Good Luck.
kennythekey
593 posts
 
Hi Hdm!

Hdm -> "Kenny: When you say the Target Pro shelf "flexed under the load" are you saying that the rack itself flexed or the shelf material (MDF shelf)."

Yes, the shelf itself flexed and I was within the maximum weight load. It's possible that the shelf was defective but I did not get a response from Target. If you email me I can send you pictures.

Previously, I had used an older Target shelf with a SOTA table but I needed the Pro shelf to accomodate my new table. The old Target shelf never flexed but it was designed differently.

The flexing scared the "%@#!" out of me and I didn't care for the sound. I could not adjust the front leveling screws to bring the table up to level. The pictures are very revealing.
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