Mobile Fidelity (MoFi) Geo-Disc Go to product viewer dialog for this item.
is a single-grid, Baerwald-based tool designed to optimize phonograph cartridge alignment, eliminating tracking distortion by aligning overhang and offset angle simultaneously. Maximum performance is achieved by placing the stylus on the grid while ensuring the raised sight line points directly at the tonearm’s pivot point. For further technical details, see Elusive Disc. Cartridge alignment gauge – which to buy? – AudioCircle
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