The frequency sweep tracks (such as on the Cardas LP) are a safe method of demagnetizing.
Some cartridge manufacturers recommend against the use of any other kind of demagnetizing, and will void their warranty if one is used and damages the cartridge. Contact the cartridge manufacturer or an authorized dealer before using such a device on any phono cartridge.
Some cartridge manufacturers recommend against the use of any other kind of demagnetizing, and will void their warranty if one is used and damages the cartridge. Contact the cartridge manufacturer or an authorized dealer before using such a device on any phono cartridge.