Used in conjuction with the Neumann SX-74 cutting head VMS70 lathe, the Neumann SAL 74B cutting rack is one of the integral parts of almost every proffessional lacquer cutting system used in the world today. The audio signal is sent from the mastering desk to the SAL74B rack, where the signal is amplified and sent to the cutting head. From there the grooves are cut into the lacquer, which is rotating on the turntable of the lathe.