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JMW 9

JMW 9

Overview

VPI

JMW 9

Like the other JMWs, the '9 uses a reverse-missionary bearing with a devilishly sharp tungsten-carbide point hardened to 92 on the Rockwell scale, and a machined and hardened-steel set-screw for a cup. The cast-aluminum arm's beaded texture matches the finish on the upper parts of the Scout's adjustable feet, and the tube is filled with a 1.7-lb-density urethane foam. The mounting base, lower bearing housing, and cueing support are also aluminum alloy, while most other bits are stainless steel—including a weighted ring that's fastened to the bottom of the upper bearing assembly. Not only does this weight stabilize the arm, but because the mass of the ring isn't consistent around its perimeter, rotating it has the effect of subtly tilting the entire upper bearing assembly in one direction or another, thus effecting a change in cartridge azimuth if needed.

The JMW-9 is height-adjustable.