Pro-Ject Audio Systems Pro-Ject Signature 12 - Manual (Page 15)

4. Adjusting the azimuth
The cartridge needle must be vertical in the record groove in order to trace the groove wall modulations
correctly. A small azimuth adjusting screw on the headshell allows incorrect azimuth to be corrected.
Correct position can be checked from the front view, preferably with needle placed on a mirror which is placed
on platter.
Examples of incorrect azimuth setup:
Too much left angle: Too much right angle:
The correct position is 100% perpendicular to the record.