Originally Posted by
Barry
Something that crossed my mind as well, when I first heard of the Furutech demagnetiser.
Lets start with LPs. These are made from PVC with a lot of additives such as plasticisers, stabilisers, mould releasing agents etc., plus of course carbon black. It is only the carbon black that might contain magnetic material. Looking at the blurb from a major carbon black manufacturer, the only impurities of interest are cobalt (< 5 ppm) and nickel (< 10 ppm). Whilst both of these impurities are highly magnetic (cobalt in particular), their presence is so small, that I can't see how the Furutech demagnetiser can have much effect, if any at all.
As for CDs, the only part of interest is the metal layer that contains the digital information. The used metal is usually aluminium, but sometimes gold or silver are used. However all three metals are non-magnetic, so use of the demagnetiser will also have little, if any effect.
But there are some who claim using the Furutech device is not only desirable but essential.
https://positive-feedback.com/review...-demagnetizer/
£3k obviously buys a bulk load of snake oil then?
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