The Ortofon Cartridge Protractor is a simple yet sophisticated tool that allows you to properly align your cartridge for optimum performance throughout the length of a record. This useful device is provided as standard with many higher-end Pro-Ject turntables, but is also useful to anyone who is looking to change their cartridge or fit a new model for the first time.

This simple alignment tool has a number of lines radiating out from the spindle and labelled from 0 to 5 degrees plus a series of vertical parallel lines. These reference points are positioned at distances of 63 mm and 125 mm from the spindle. This alignment is a good compromise across the whole of the record and ensures that almost zero distortion is achieved.