Albert Porters after market panzerholz plinths

Regards, all. I've been following this thread with interest and am reminded of this site:

http://www.soundfountain.com/amb/sp10plinth.html

As there are some familiar names mentioned, I'm sure several of the knowledgable posters here are aware of this site but it seems to offer good information, such as data relative to the propagation of sound through various materials taken from "The Practising Scientist's Handbook", written and compiled by Alfred J. Moses (Van Nostrand Reinhold Company, New York, 1978). Also a comparison by the host of various plinth materials and the effect on tt performance.

Please do continue this discussion as there is much insight into the considerations of plinth (or absence of) construction from all of the remarkably experienced audiophiles who have shared their thoughts on this matter.

Well, I thought I had a handle on this. Now it appears to have increased in complexity beyond my level of comprehension.

I understand that sound propagates at different speeds in different materials, but how this has an effect on the resulting sound in teh case of a turntable plinth is beyond me. I thought the goal of the big massive plinth was just to limit motor vibrations, not play a part in transmission of sound. How does that happen?

My gut feel is this article relates some interesting facts for consideration but that you are really cutting hairs with little chance of predicting end results trying to sort through any of this in a quantitative yet meaningful way.

On teh other hand, I suppose that's what being on the bleeding edge is all about, so cut away.

Dear Weisselk: First than all I'm not a plinth designer as you and the other gentlemans are.

Second Dbcooper ask for to you the manufacturers and third my post on the subject was only trying to understand that measurements always could help.

+++++ " With all your audio knowledge, I would imagine you would know the scientific parameters of significance? " +++++

certainly and due that you are in the plinth design/build as the other gentlemans you have more in deeep knowledge level that any of us mere audiophile " mortals ".

What I can say you is that for the time ( very remote this could happen. ) I take the design and build plinth " enterprise " you can be sure that I will be aware of those scientific measurements that could help in my design.

That you and the other gentlemans you name it do not have ( yet ) or even are not aware off means only that you don't have it: not big deal, this is a normal part/fact of the AHEE and we are accustom to.

regards and enjoy the music,
Raul.

One of the problems with measuring turntables today is that the tools for doing standard DIN tests are no longer available. Sure you can measure noise with an unmodulated groove on a test record, but then you'd only have a number and no meaningful way to compare. The original Panzerholz plinth was done on a lark and designed intuitively (although after a great deal of research). It worked so well that it was decided to share it with others. You really have to hear it to appreciate it. It is impossible for me to imagine how it could be improved upon. I don't think it could even be made more compact.

Ckniker,
I have experience with the Boston Audio Mat 1 and Mat 2 on the SP10 mk2. Both work great. My preference is the Mat 2 because it's thicker and more substantial. It's size fits the mk2 platter perfectly, almost too perfectly. The mat fills the space completely. One advantage of the Mat 2 in this reguard is that it is twice as thick and so leaves more to grab at the edge when you want to remove it. Sticking the mat down with two sided tape is beneficial to keep it still and solid but go very sparingly or you will have a battle on your hands ever getting the mat off the platter.
Having said all that, I still think my favorite is the CU-180 and I've noticed no speed control issues with the mk2. The Boston mat is much less expensive and more readily available. I'm sure the mat you're using is quite good but if you try the Boston, I doubt you'll go back.