Thoughts On Turntable Clamps And Weights

@pindac As you can well imagine I am familiar with the Panzerholtz material. Both my Innovation Wood, and the Ovation I had before it have Panzerholtz plinths.

Clearaudio's Statement clamp has a Panzerholtz base, but as I recall it is now $1200 U.S. (the Innovation clamp is about $750). That's a lot of money for a record clamp.

I would still like to hear what a clamp with a wood base (be it Ebony or Panzerholtz) sounds like.

@dwette I have worked with Plinth Materials for a long time(since the 90's).

I have evolved from Mass, leaving behind Granite Monolith type structures for a lighter material. 

This endeavour has enabled myself to try out different materials as well as meet with others and receive demo's of their versions of a Plinth.

As a result I have been able to experience in use different Stone Types (inclusive of resin formed composites), Wood Based Types and in Two experiences where a Lead Composite and Solid Aluminium Metal is the Plinth. 

On my preferred TT Model using the same Tonearm > Headshell > Cartridge > Mounting Rack > Audio System, the following has taken place.

I have been comparison demo'd a variety of Plinths produced from what was my most preferred material for many years, ( a highly compressed polyurethane foam @ 700Kg per m3) > (Birch Plywood @ 700Kg per m3) > ( MU 25 Beech Plywood - Non Resin Impregnated Compressed Board @ 900Kg m3) > (Panzerholz B25 - Phenolic Resin Impregnated Beech Plywood @ 1400Kg m3)

Each material in use is able to create a variant to the sonic being produced.

I own the MU25 and this was the first in use, it was not showing too much to be considered as a detraction.

The Birch Plywood followed and was instantly and noticeably unattractive in comparison to the MU25. It was easily deselected for further use, the owner of the Birch Plywood Plinth was quite astonished at how he was feeling sure the Plywood Plinth was a good material choice.

The Compressed Foam in comparison to the MU25 proved to be similarly voiced, , I was of the the view, the Foam was the more attractive material.

The owner of the Panzerholz Plinth was very familiar with MU25 as a Plinth Material as well, due to their past usage of the material.

Once having experienced the Panzerholz there was no further wanting to return to comparing any of the other materials.

The two non-P'holz Plinth Owners at this demo', of which I was one, are now owners of P'holz Plinths. The impact the material has had, has resulted, that it cost myself and the other individual £1000 to get a Board of P'holz into our possession to have a our Plinths Produced and have other options.

As a side: Linn's latest announcement for a TT, is making it known they are now to be using a Resin Impregnated Densified Wood.      

I wonder what a Panzerholz isolation base would be like, with the proper feet? I have a isoAcoustics Delos 3" Maple platform I use for the Innovation. Technically I have exceeded the weight limit for it by about 8 lbs, but I don’t have any isolation issues that I can hear.

I’m going to stand pat on my current record clamp, until I can hear what the Clearaudio Innovation and/or Statement clamps sound like, not that I want to spend their kind of money for one.

@dwette As I have Plinth Size Boards, I have loaned a assembly of a Sub-Plinth / Sub Sub-Plinths with AT-616 Isolation footers.

This assembly has been used in a variety of systems for both Vinyl and CD Source and Valve Power Amp's. There has been enough discoveries made to strongly suggest this method is most ubiquitous I have encountered for producing effects on a sonic that are a improved attraction in a range of environments.

The Two owners of the P'holz Plinths referred to in the earlier post are both using P'holz Sub-Plinths in conjunction with their P'holz Plinths.

I made a offer to a Clearaudio TT owner to enable them to receive a free Permali Board Sample of a Sub-Plinth Dimension, this was not followed up on.

I believe the same sample offer may have now been taken up by a Garrard 401 owner.

If the Sub-Plinth was to be supplied by Taiko Audio, their remuneration for a daiza plinth would be close to £1000

 https://taikoaudio.com/taiko-2020/daiza-isolation-platform/?v=79cba1185463     

@dwette 

In order for a suspension to isolate a turntable from environmental noise it has to have a resonance frequency between 1.5 and 3 Hz. This is a mechanical filter in which you have a mass and a set of springs with a given rate to produce the correct resonance frequency. If the springs are not tuned to the mass you have an ineffective method of isolation. In other words all that other stuff does not work. Turntables that have such suspensions include Basis, SME, Sota, Avid, some Kuzmas, The LP12, Dohmann and I am sure I am missing a few. There are platforms that you can order or adjust for the mass of your turntable such as the MinusK and Vibraplane.