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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: Don't be discouraged. posted by Al Sekela on March 9, 2005 at 14:58:35:
I did not hear any change in sound on four discs when demagnetized by hand. On two of these discs I heard slight changes with the Bedini Ultraclarifier.My procedure:
1. Play the disc and listen for various vocal/acoustic places with clear separation;
2. Place the disc between two sheets of used dryer fabric softener cloth and make the circular motions over the disc with a sealed plastic container of preserved fruit, that is similar in size and weight to the magnet but free of any steel (this is the null function);
3. Play the disc and listen for changes;
4. Treat the disc as in 2.) but with the magnet (a strong circular magnet similar to what would be found on most speakers) in place of the container of fruit;
5. Play the disc and listen for changes;
6. Treat the disc with one cycle of the Bedini Ultraclarifier; and finally
7. Play the disc and listen for changes.
I used two discs from London opera sets (both Puccini: Il Trittico and La Boheme) with minimal colored ink on the disc labels, a disc with a dark brown label (Brian Bromberg: Wood), and a disc with an orange and blue label (Cachao: Master Sessions Vol. I). Neither opera disc nor the Bromberg disc had been previously treated with the Bedini machine, but the Cachao disc had been treated many times in the past several years.
No treatment had any effect on the Il Trittico or Wood discs. The Bedini treatment made a small improvement in vocal timbres (smoother tenor and baritone voices) on the La Boheme disc, which was from a fresh package, and improved the sense of studio ambience around solo instruments on the Cachao disc. The null and the hand demagnetizing treatments had no effect on any disc.
My experience with the Bedini Ultraclarifier is that it affects a few discs slightly, and has no effect on most the discs I've treated with it. My player is a Wadia 861. Before I got the Wadia, I used a Theta Miles player. The Bedini machine was more effective on more discs with the Theta.
Therefore, I can't rule out an improvement from hand-demagnetizing with other CD players, but it seems to have no effect with the Wadia. The improvements with the Wadia are small enough that I don't bother to use the Bedini unless I am doing some detailed analytical listening, and if I never had experienced it, I would not have missed it.
There is much more improvement in Wadia CD playback to be had by providing proper mechanical support for the CD transport or player, and by using a power cord that is damped against mechanical and electrical resonances.
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Follow Ups
- Null vs. Magnet vs. Bedini - Al Sekela 03/10/0508:46:29 03/10/05 (2)
- Re: Null vs. Magnet vs. Bedini - jea48 17:04:52 03/10/05 (1)
- Thanks, I'll try treating both sides. - Al Sekela 09:02:12 03/11/05 (0)
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