The distance by which the stylus tip extends beyond the turntable spindle when the cartridge is correctly aligned, referenced to the tonearm mounting distance.
It is a parameter of tonearm/cartridge geometry and, together with offset angle and effective length, serves to minimise tangential tracking error across the specified playback radius.
A
≙
Mounting distance
B
≙
Cartridge overhang
A
+
B
≙
Effective tonearm length
