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Critic's Corner Discuss a review. Provide constructive feedback. Talk to the industry. |
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Critic's Corner Discuss a review. Provide constructive feedback. Talk to the industry. |
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In Reply to: Are you retelling results, or opinions ? posted by beach cruiser on January 30, 2006 at 17:40:04:
It is a commonplace in metallurgy that TRUE cryogenic treatment changes the ratio of Austenite to Martensite in tool steel. Case closed. Don't even think about arguing about cryo and tool steel. AFAIK, EVERY NASCAR team uses cryo, it is one of the few voodoos the rules allow them.15 or 18 years ago I saw a paper from Applied Cryogenics of Newton, MA on their results with polycarbonate. I have no problem at all with the idea that TRUE cryogenic processing would result in a rearrangement of the fine structure of a CD so that less energy would be required to affect a certain deflection and rebound, in that the polymer chains would slip against each other more easily.
I clearly heard differences, and my wife, unaware of the treatment, yelled in from the kitchen that something was wrong, it sounded like Arturo Delmoni was playing a viola in the fifth position (and not his violin). Sallie Reynolds also did not like cryo'ed CDs.
I forget the name of the Japanese company that was doing it, I have it here somewhere, in the 1990s, making CDs from polyolefin, on the theory that polyolefin behaved more like cryo'ed polycarbonate.
I have a test set of three identical CDs, except for substrate and spluttering. I did a quick DBT with Bob Ludwig, and he nailed them 100%.
THE PROBLEM IS, he "liked" the olefin gold least, olefin aluminum next, and carbonate aluminum, BEST!
Back to the drawing board.
As far as demag goes, that is a subjective observation on my part.
OK?
JM
PS. DBT is a so-what with me. I can't say I do it all the time, but, for at least half the shows or showrooms I go into where music is playing, I have no ideal what is connected and I have no idea what anything costs, I just decide whether it deserves further investigation.
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Follow Ups
- Both - John Marks 01/31/0608:08:41 01/31/06 (6)
- Thank you for the reply, - beach cruiser 10:57:23 01/31/06 (5)
- No offense intended (at least by me) - John Marks 11:35:41 01/31/06 (4)
- Re: No offense intended (at least by me) - morricab 08:20:24 02/1/06 (0)
- The thrill is gone - beach cruiser 18:11:31 01/31/06 (2)
- The Compact Disc is an analog medium, read by analog means - John Marks 05:24:33 02/1/06 (1)
- Thanks again for the reply - beach cruiser 13:20:06 02/1/06 (0)
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