It’s not “audio law” at all. It’s physics of the metals used to build SUT cores. I forgot to mention that I personally prefer to demagnetize LOMCs using a test LP, which I don’t think can damage the cartridge magnets. Cardas test LP, for one example. I see that I and the OP both use the Cardas LP. It also gives the suspension a nice workout before it plays music. Therefore I cannot separate the demag effect from the exercise effect, but there is a benefit.
Sumiko Flux Buster Demagnetizer
Greetings
While I was reorganizing my shelves in my audio room I relocated my Sumiko Flux Buster. Haven’t used it in years. So I demagnetize my 2 MC cartridges and my passive SUT. I was amazed at the improvement of the clarity of the music. I have been using the Cardas test album the last few years to degauss the system. Side 1 tracks 2a/b/c frequency sweep. Seems to work well. The Sumiko worked much better on the cartridges and SUT.
Are others still using this device or similar devices? I’m glad I relocated the Sumiko. Will start using it more for MC cartridges.
’No matter what you buy there is always something better’.
Joe Nies
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- 27 posts total
@lewm , can you please explain how you demagnetize a cartridge with a test record? |
Good question. I have no idea how it works. But Stan Ricker says his LP demagnetizes on (as I recall) cuts 2a, b, and c on side A. I am guilty of believing Stan Ricker. I have wondered how it would work, but not as much as I wonder about other things that occupy my time, like how Einstein's concept of the gravitational force compares to Newton's. Ergo, I have not investigated Ricker's rationale. I do know that the cuts contain rapid excursions of frequency, from low to high, repeated in succession. And cartridges that have been out of use for a week or more definitely benefit, but that could be as much due to exercising the suspension as from any demag effect. |
- 27 posts total