AT-LP120X Alignment: Baerwald Groove radii: IEC/RIAA Inner groove: 60.325 mm Outer groove: 146.05 mm Inner null radius: 65.998 mm Outer null radius: 120.891 mm Pivot to spindle distance: 214.5 mm Overhang: 17.855 mm Effective length: 232.355 mm Offset angle: 23.714° Linear offset: 93.445 mm 190 × 190 mm