AMG 9W2

Based on the award winning AMG 12J2 12” tonearm, the 9W2 9” tonearm use a scaled version of AMG’s patented dual-pivot bearing. The vertical bearing, similar to a technique used in helicopter rotors, utilizes 2 steel wires that allow fine azimuth adjustment while eliminating bearing play. The horizontal axle is hardened tool steel needle roller bearing. The aircraft grade aluminum armwand is anodized for resonance control. Identical to the 12J2, the 9” tonearm’s internal wiring is multiple stranded high-purity copper, and features magnetic anti-skate and precision locking VTA adjustment. The 9W2, with a pivot to spindle distance of 211mm, is designed for the Linn LP-12, as the second arm on an AMG Viella 12 using the TWIN armboard with OVAL SME mount adapter, or other turntables that accommodate this length.

About

Bearing:

  • Patented Dual-pivot bearing
  • Vertical bearing, similar to a technique used in the rotor heads of helicopters
  • Uses two .5mm thick “spring steel wires,” allowing fine azimuth adjustment while eliminating bearing play
  • Horizontal axle is a hardened tool steel, precision ground to a backlash-free fit with a needle roller bearing
  • It is extremely precise, maintenance free, and never requires adjustment
low_12J2-Bearing-Cutaway_thumb

The 9W2 tonearm uses the same bearing technology as it’s 12″ brethren, the 12J2 (shown).

Armwand:

  • Aircraft quality
  • Anodized aluminum tube for resonance control
  • 9 gram effective mass

Counterweight:

  • 2-piece with Teflon decoupled sleeve

Copper Internal Wiring:

  • Multiple gauges of high quality copper

Magnetic Anti-skating:

  • Decoupled via ring magnet and 2-bar magnets
  • Magnetic fields isolated in our patented bearing housing

VTA:

  • Precision locking system allowing easy adjustment during play

Armboard:

  • Machined solid aluminum
  • Bayonet mount with overhang calibration
  • Pre-cut for AMG and Graham fixed mount
  • Custom cutouts available

Additional information

Effective Length

229 mm

Distance from Pivot to Turntable Center

211 mm

Overhang

18.1 mm

Offset Angle

24.07 degrees

Effective Mass

9.1 grams

Null Points

Inner: 66 mm, outer: 120.9 mm

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