Materials used for a role in audio can be discussed endlessly, as individuals only know what they know from their experiences of a particular material being used in conjunction with a unique support structure, as well as a quite unique environment.
Is there really a wide interest within Audio Equipment users to take on the interest in getting a betterment from a Support Structure for the System and devices used in the system?
Narrowing down on the materials that are available to be used as a support structure, especially honing in on the Analogue Source, if a Board Material such as a Birch Marine Ply has an attraction to be used, then why not use it. It is sound enough to be used as a Structure to be a Plinth for a TT or support for a TT.
If the sole objective for the Birch Marine Plywood is to be a structure able to support the TT as the Plinth or a Sub Plinth, then users are on to winner.
If other properties are sought in conjunction with the capability of being sound enough to be used as structure, then the investigation will extend beyond one type of Material only.
Keeping the subject around the Board as the Material, and using my own experiences of different Board Types in use. Where different Board Types have been purposely selected to be used to support a TT's mechanical assembly and a Tonearm.
As an outcome, can influence individuals who have had the experiences, make decisions that deselect a commonly used material an make a decision that puts them at a place they are selecting a not too commonly selected materials.
It helps reinforce ones own choice for a material, when they discover others across many Countries, albeit DIY enthusiast or a Commercial entity, who share a similar interest, are being witnessed discarding older used methods and are making very similar decisions to ones own, for the adoption of using not too commonly selected materials.
In my own case, I relate to the above through my own adoption of a Resin Impregnated Densified Wood Board, especially as the material used for Structures where Analogue Devices are the Topic for a rethink for their Design.
Making changes for myself is not with difficulty, I have been evolving in relation to material selection for close to 30 years, I am certainly attached to the following ways of thinking. When those with a shared interest on a TT's function moved on from their accepting as the only choices, Leaking Bearing Housings, Sintered Bronze, Steel Balls and Metal Thrust Pads and Metal Platters. There was an applause across the Globe and there are numerous cases reported Globally over the past 25 - 30 years of those adopting the changes, where the positives of the changes having been made stand out for the betterment created.
My experiences are not too many, but enough have been had, to allow myself to state, that a Densified Wood used in conjunction with an old and not too fettled TT, has the properties that are ideal for tidying up audibly what is present due to the TT's foibles. The TT used with a Densified Wood, certainly surpasses what was the end sound as a result of being mounted on an original design plinth.
When it comes to a fettled TT, an original plinth in use, has proven to destroy the values added through overhauling the TT's Mechanical Interfaces and in the case of the DD TT, the Electrics. The use of the overhauled TT in conjunction with materials such as Resin, Lead Topped Board and Board Materials used in the Vintage Plinths, from my assessment from experiencing them in use, are noted for their negative impact on the end sound. Each type is difficult to recommend when alternative materials experienced in use have made a much improved impression., With the outcome being from alternative materials used, that Densified Wood Board has been the most attractive when experienced.
When using an overhauled TT to the condition achieved above. Such a TT being used in conjunction with Densified Wood as the Support Structure, produces to my own assessment, an end sound that is easily perceivable for the improvement. There is discernible sound being produced that can easily be described as having become more than the sum of the parts.
Did Linn discover a Night / Day improvement with their selection of a Densified Wood for the Bedroc Peripheral Design for the LP 12 Plinth? I myself based on owned experiences doubt it.
I do suspect Linn has detected a change to the end sound that is perceived as a betterment to what has been the earlier option as a periphery on the TT's Plinth.
The discernible differences between the Bedroc and other versions being noticed will be dependent on a variety of factors, especially the ambient environment and the overall structure used for supporting the TT.
In relation to the Panzerholz used by myself at approx' £100 for a Plinth Blank and an equivalent dimension in Marine Plywood at approx' £12.
For myself the benefits of the P'holz being used at approx' £88 uplift as a cost is a no brainer. The qualities known from the usage of the material makes known off alternate board options obsolete.
Alternate Board materials are kept to be used to demo' to others the differences that occur to the sound across the use of the different Board Materials. There are Plinths available in a Birch Marine Plywood @ 700Kg / m3 - Compressed MU 25 Plywood @ 950Kg / m3 and Densified Wood @ 1400Kg / m3. Not anybody who have been given a demo' have needed an extended period to decide on where the ideal choice lays. The lesser weight boards are to date the rejected board, with favour shown for the heaviest board material.
