MOBILE FIDELITY GEODISC Phono Cartridge Alignment Tool

Professional Cartridge Alignment Tool

The Mobile Fidelity GeoDisc is a precision alignment tool designed for turntable owners who need accurate phono cartridge setup. It enables users to achieve optimal stylus alignment using the printed Baerwald curve graph. This accessory is essential for audiophiles and vinyl enthusiasts seeking to realise the full performance potential of their cartridge. It suits anyone setting up a new cartridge or verifying an existing alignment.

Integrates Directly With Turntable Platter

The GeoDisc fits onto the platter like a standard record, requiring no additional mounting hardware or external gauges. It frees the user from complex protractors or digital tools by providing a self-contained visual reference. The printed alignment curve allows for intuitive overhang and offset angle adjustments. It works with any turntable that accepts a full-size disc on the spindle.

Passive Operation With No Power Requirements

As a purely mechanical tool, the GeoDisc draws no power and generates no noise during use. It adds negligible mass to the platter and does not affect motor torque or speed stability. Thermals are irrelevant because the device has no electronic components. It remains inert throughout the alignment process, ensuring measurements reflect the cartridge geometry alone.