Ortofon Dynamic Balance Tonearm - RS-309D

Authorized Dealer Price Match Guarantee
Price Match Guarantee
Audio One offers a price match guarantee for lower priced items on identical in-stock items from competing authorized dealers. Exclusions Apply*.

Call for Pricing
(416) 665-0749


RS-309D 12 inch Ortofon’s D series tonearm takes analog sound reproduction to a higher level with highly configurable VTF options and a dynamic balance system for increased stability when tracking warps and other anomalies.

D series tonearms can be used for a wide array of cartridges, feature anti-skating control.


  • Dynamic balance graduated vertical tracking force (VTF) control through a new spring design
  • The new short wire spring, housed in the pivot case, eliminates unwanted vibrations in the tone arm
  • VTF in the range 0-5 grams can be precisely adjusted by means of the supplied digital force gauge
  • Anti-skate control adjusted by calibrated dial in the range 0-5 gram
  • Tone arm height, and thereby VTA, is easy adjustable on the tonearm base.
  • Detachable head shell and tone arm cable, with standard SME-type connectors
  • 1 x Digital scale DS-1 included
  • 1 x Headshell SH-4 Black included, headshell weight 9.4 g, screws weight 2 g
  • 1 x Tonearm cable included
  • 1 x Mounting template included
Effective mass (without headshell) 4.0 g
Effective length (distance between the stylus and pivot point) 329 mm
Mounting distance between the pivot point and turntable center314 mm
Offset angle 19 degrees
Overhang 15 mm
Tracking force adjusting range (direct reading) 0-5 g
Height adjustment range 42-57 mm
Diameter of the armbase mounting hole34-36 mm
Diameter of the center shaft16 mm
Fixing holes PCD dia. 50 mm
Size/Thread dia. 3.2 mm (dia. 3 mm x 20 mm and dia. 3 mm wood screw)