Tonar Protractor
A simple yet crucial tool to align your turntable cartridge perfectly for the best sound quality and minimal record wear.

The Tonar Protractor is an affordable and effective cardboard alignment tool that does exactly what it promises. While the material is basic, it is an absolute must-have for anyone mounting a new cartridge or stylus.
Reasons to buy
- Very budget-friendly compared to premium metal alignment tools
- Easy to use with clear, precise grid lines
- Effectively reduces tracking distortion
- Universal design works with almost all standard turntables
Watch-outs
- Made of cardboard, making it less durable than plastic or metal options
- Does not include detailed instructions for absolute beginners
Why a protractor is essential
If a turntable cartridge is not perfectly aligned in the headshell, the stylus won't trace the record grooves correctly. This leads to audible distortion (especially inner groove distortion) and accelerated wear on both your stylus and records. The Tonar Protractor features two null points to help you adjust the cartridge angle and overhang precisely.
Simple yet effective design
Do not expect a high-tech gadget; this protractor is a sturdy, flat card with accurately printed grid lines and a spindle hole. However, the minimalist design works flawlessly. You place the card over the spindle, gently lower the stylus onto the marked points, and align the cartridge body parallel to the lines. It requires patience and a steady hand, but the sonic improvement is well worth it.
Frequently asked questions
Will this protractor work on any turntable?
Yes, this universal protractor is based on the standard Baerwald alignment method, which is compatible with the vast majority of turntables featuring a radial tonearm.
Is the material durable enough?
Since it is made of thick cardboard, you need to handle it with care to avoid creases. However, for occasional cartridge setups, it is more than durable enough.
Where to buy
Affiliate link · we may earn a small commission, at no extra cost to you.