Mobile Fidelity GEO-DISC Stylus Alignment Protractor: The Most Accurate and Most Affordable Cartridge Alignment Gauge for More Than Three Decades and Counting The Mobile Fidelity Sound Lab GEO-DISC stylus alignment protractor makes cartridge setup easy!

You will never realize the full potential of your cartridge without properly setting it up, but let's face it: Mounting and aligning a phono cartridge can be a tedious and time-consuming chore. Not with the Mobile Fidelity Sound Lab GEO-DISC!

Simply put GEO-DISC on your platter as you would a record, and align your cartridge using the simple printed graph based on the Baerwald alignment curve. It's that easy! Nobody who owns vinyl LPs should be without this essential device. Plus, it comes with the 100% Music Direct Satisfaction Guarantee.

"If you feel like turntable/cartridge setup is over your pay grade, and are daunted by complicated tools, consider the Geo-Disc from MoFi…. [It] will get your analog front end sounding good. And, the Geo-Disc is the perfect tool to de-mystify analog setup." —TONE