Ortofon AS-309S 9" static-balance tonearm
Ortofon’s AS series static-balance tonearms feature high quality materials and construction, combined with a nod to analog’s past, for precise sound reproduction combined with a modern-vintage aesthetic.
The AS Series tonearms can be used for a wide array of cartridges, feature anti-skating control.
Effective mass (without headshell) - 4.0 g
Effective length (distance between the stylus and pivot point) - 329mm
Mounting distance between the pivot point and turntable center - 314mm
Offset angle - 19 degrees
Overhang - 15mm
Tracking force adjusting range ( direct reading) - 0 to 3g
Height adjustment range - 35mm to 55mm
Diameter of the armbase mounting hole - 19mm to 20mm
Diameter of center shaft - 18mm
Optional counterweight for heavier cartridge between 26 and 38 grams is available