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