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In Reply to: RE: So what's the deal with CD demagnetizers? posted by beach cruiser on June 15, 2017 at 04:29:48
After all that, I forgot to mention the solution to understanding illusion from audio fact. The double blind test. Where the merchandise is played behind a curtain, or out of sight, and listened to, with and without the object in question in he signal chain., enough times to figure it out.
I seriously doubt I could hear how a magnetic field would effect information carried by light in the infrared spectrum. AS far as magnetic vinyl , prove it. One would assume the magnets in the cartridge would be more of a concern.
Follow Ups:
Hi discussion. I thought i would jump in as i didn't think it is sensible/rational. However the only thing i can think of (and this could be BS, i don't know and don't have the facilities to test. But demaging a CD just before playing would induce eddy currents in the metalized layer which could heat it up a small amount.
If that effect is measurable which it should be -if it can be heard?
Who know's? just my thoughts, maybe others know more -so just throwing it out there.
Who's Eddy?
You didn't try it.
"The Borg is the ultimate user. They're unlike any threat your Federation has ever faced."
- Q, 2365
This whole post sounds like total BS to me but there is an easy way to prove it. Take a CD, listen to it and than spray some adhesive on the label side. Take a prerecorded length of magnetic tape and cut it into lengths to cover the label side. Now place this CD back into the CDP and listen to it. Sound the same? Well, it shouldn't according to the "TRUE BELIEVERS". Now demag it and play it again. Sound the same?
CD is an optical media. Get over it.
BillWojo
Well I must say it is easy but not quiet as easy as doing a before and after test with just a demgnatizer, but that's just following like first grade logic, but please let us know how your easy test works out. Quite a few of us here would go way way out on a limb and speculate that your test, before the demag would in fact change the sound. As always some people can hear things and some can't. If after you spray a cd and put your tape on it, listen, and come to the conclusion that it did not effect the sound, more power to you. The less sensitive one is to changes in sound the less they have to do or worry about when going about improving one's system, if in fact that is a goal. The goal of nay saying, especially before actually trying things is the easiest of all. Tweaker456
"The needs of the many outweigh the needs of the few or the one"
Vulcan Proverb
Not going to waist my time on it. I gave a simple test procedure for anyone to try it out. Best would be to make two identical CD's with magnetic tape on it, one that has been demagged and one with recording on it. Then do a blind A/B test.
Just a small piece of magnetic tape would have WAY more magnetic property than a whole stack of CD's. So who's game?
BillWojo
Why bother believing your own ears. Just foam on.
"The needs of the many outweigh the needs of the few or the one"
Vulcan Proverb
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