JMW-9

About the JMW-9

The VPI JMW-9 tonearm is based on an award-winning unipivot design enhanced with 3D printing technology using a proprietary epoxy resin that provides rigidity, light weight, and excellent vibration insulation. It features a damped polished stainless steel armtube, black anodized head shell and bearing body, and removable arm-wands for quick cartridge changes in under 30 seconds. The tonearm includes a precision adjustable counterweight for azimuth and tracking force adjustments, allowing optimal cartridge performance. Internal wiring uses premium Discovery wire for superior signal transmission. Key geometry includes a pivot to spindle distance of 223mm, effective length of 240.7mm, overhang of 17.7mm, and an offset angle of 22.85 degrees. The average RMS distortion is 0.36%. It is compatible with VPI turntables such as the Scout and Scoutmaster and can fit Rega RB300 armholes without modification. The tonearm weighs approximately 10.2 grams effective mass and is constructed from aluminum, steel, and epoxy resin materials. It is highly regarded for its low resonance, excellent musicality, and ease of setup with adjustable VTA, azimuth, and tracking force.