2. analog
  3. 132222-102420

Advise on TT Support Platform

Hello All-
  This is what I plan to do and would appreciate any comments on my idea. I have (soon to be delivered) a new VPI Prime TT and plan to place it on the 1st floor of my residence which has a hardwood floor. Under the floor is a 5' crawl space with dirt bottom, the house is supported on poured concrete footings & 5' poured concrete walls.

  I plan to drill a 1.25" hole through the floor and run a 3/4" dia. black pipe (gas line) through it. The base of the pipe will be sunk into a 2' x 8" dia hole and filled with concrete while the pipe is centered within the hole with .25" of clearance surrounding it (isolating it) from the hardwood floor. The pipe would further be secured with 3 wire stays on turnbuckles ( as an antenna ) to alleviate any chance of pipe movement. The stays would attach to the pipe near the underside of floor & anchored into concrete foundation walls, then tightened down. The top (terminal) aspect of the pipe would have a black iron pipe flange screwed onto it at the determined TT height.  A 21" x 21" x 3" maple platform https://www.dawnsdepot.com/product-page/dawn-s-depot-maple-audio-isolation-platform-aud21213-21-x-21-x-3  would be bolted to this flange, to which the Prime would set upon.

  Further, I would install the Symposium VPI Prime Footer Insert Kit https://www.highdeftapetransfers.com/products/symposium-vpi-classic-footer-inserts   More on that here also: https://www.thecableco.com/Product/Classic-Footer-Damping-Insert-Kit 

   I'm thinking this will totally eliminate any footfall problems for good and create a internal TT & external platform/TT vibration and resonance grounding pathway to handle those issues.

  So, I'm looking at this as if the vibrations and resonance energies within the TT and those of the platform will be conducted as if they were electrical in nature and simply being lead to ground and dissipated. A note in this regard, my T.V. antenna grounding rod was buried 6' deep in case of a lightening strike in contrast to my 2' concrete filled hole for the 3/4" dia pipe.

  The TT is essentially coupled to the maple platform, and the maple bolted (coupled) to the flange & flange to pipe, pipe to ground.

 Is this sound? or do I have it all wrong?
robes

Showing 1 response by leonardcooper

leonardcooper
20 posts
 
I am on hardwood pine with sub floor, suspended above a basement. Rather than industrial overkill, I did nothing to the floor. If you want an electrical ground, you get that when you connect the TT.  I have a quality equipment rack that provides some damping. The rack is directly behind the right speaker, like three feet. I then mounted a maple slab from:

http://www.mapleshaderecords.com/

Your Dawns Depot is a cutting board. I've had one and sent it back. The Mapleshade slabs are made by audio people for audio people. It's not a cutting board. I have a 4 inch one under my VPI Prime Signature and I am very pleased with the damping as well as the warmth of the maple. The four inch is best, but the two inch will do quite nicely as well. Cutting boards have more pieces glued together, the slab is made of 4 inch blocks so the damping is better.

Good luck on your floor rebuild. Btw, what will you do when you sell the house?
More to discover