I use a Walker Talisman to demagnetize my CDs and LPs every time I play them. The difference between a magnetized CD and a Talisman demagnetized CD is as different as using 6 E-mats when comparing a magnetized (several plays of a CD for instance) and a "Talismaned" demagnetized CD. The Talisman is just a big pair of magnets but works like a powered tape demagnetizer unit, but is non-powered, easy to hold and use and small item. I highly recommend it.
I also have an Acoustic Revive RD1 which does a so-so job and which I purchased prior to the Talisman.
Otherwise, the tiny group of magnets I use in inconspicuous locations use a special metal which interacts with it. I doubt that it actually magnetizes the surfaces but probably does the opposite to great effect. The proof is in hearing it.
I also have an Acoustic Revive RD1 which does a so-so job and which I purchased prior to the Talisman.
Otherwise, the tiny group of magnets I use in inconspicuous locations use a special metal which interacts with it. I doubt that it actually magnetizes the surfaces but probably does the opposite to great effect. The proof is in hearing it.