Stillpoints under a turntable?

@tirebiter

As far as your Thorens goes, I have no experience with that TT.

As far as the VPI feet go, my Classic 3’s feet have the rubber inner insert that can be replaced with a Symposium product, but I have no experience with that. I use the Stillpoints Ultra SS feet. I had to modify the bottom motor cover plate so these would all sit snuggly to the tt’s base. I use 4 carbon fiber washers as the interface between the Stillpoints and the TT base.

My guess is the absorbent material you’ve placed between the granite slab and the rack is not ultimately a good idea. These types of "band aids" seem to trap vibrations/resonances resulting is lack of ultimate transparency/dynamics. Your ultimate solution will be a completely different support structure. I suspect the air bladder feet may serve you well with your current rack/system?

Your TNT is a different animal than my Classic 3. There are fellow members here with a lot of experience in upgrading TNT’s performance through the feet aspect. Reach out to @dgarretson , I always liked what he did with his TNT. I’m sure he’d be glad to help you.

Keep me posted as I'd love to hear about your progress.

Steve

I'm using Bearpaws which replaced the VPI Superscoutmaster feet.....these are very large brass cones......the difference was dramatically better.

@tirebiter 

@stringreen 's TT incorporates a rim drive. This is again, a different animal.

...….if his intention was to be helpful, he should have pointed this fact out then informed you of (his) supporting) structure.....

You just need to be careful here...….


which is why I purchase the items I believe will be helpful, then report. A novel idea that I think works.

@slaw 

@stringreen 

Based on the discussion thus far concerning Stillpoints and please correct me if I am wrong, I get the impression that the idea behind them is to dissipate vibration from the TT to the stand and is why you maintain that rubber between the stand and the TT is a bad idea, correct?

If that is the case, my problem stems from basically both directions. I have vibration that should be dissipated to the base via rubber-less feet but also have vibration from my cabinet that I want to protect my TT from.

So what I did today was purchase 3 squash balls that I placed under the granite slab in a effort to isolate the slab and TT from the cabinet. I guess you could say that I now have air suspension between the slab and the oak top.

And the TT passed my first test, the tap test, where I place a record on the TT, do not start the motor then drop the stylus onto the record. I then lightly tap the plinth, granite and then the oak top. As is logical, the tap on the plinth is audible as is the granite but to a lesser degree. Before Squash Balls, tapping on the oak top was audible and now it is not. So it seems to me that I have made some progress. I did a quickie listing test and my tell there is clarity of voices in complex music. I use the Rolling Stones "Get Your Ya Ya's Out" for that purpose. If I can clearly discern Mick and the lyrics then I feel I have made progress. That was clearly the case this afternoon.

So am I correct on my thinking concerning how Stillpoints work? @stringreen, I am thinking that you were looking for the same sort of mechanism by using the Bearpaws....