[Tantanometer]

I asked my professional Audiophriend if he had the Cardas Sweeper record and the reply was no but he aspires to having one. He says that new top-end cartridges take 10 to 20 hours before sounding their best and therefore the locked pink noise grooves would be a great help when preparing for a customer demonstration, allegedly. I'll let you know if he manages to explain how the record degausses a magnetic cartridge.

Len