A laser turntable is a phonograph that plays LPs using laser beams as the pickup – the way acompact disc player plays CDs – instead of using a stylus as in conventional turntables.
The same audio information is engraved from the shoulder to the bottom of a record groove. Audio information read by the laser is 10 microns below the shoulder. Therefore, the laser is picking up audio information which never been touched or possibly damaged by a needle. It plays the virgin audio information on the groove without any digitization.
The laser reads the audio signal with much greater precision than any needle, making the laser sound quality quite similar to the original music on the master tape.