It is critical that the the cartridge and stylus be aligned properly in proportion to the Vinyl LP's record grooves.  Improperly alignment can cause unbalanced left and right sound levels as well as lost of fidelity.

The Cartridge Alignment Protractor provides the correct guidelines to properly square-up the cartridge and stylus to the record grooves.  To adjust cartridge angle, slightly loosen the head shells screws on turntable's tonearm and align cartridge to guidelines and tighten head shell screws.

A must for any serious listener or Hi-Fi enthusiast!