Related Manuals for VPI Industries VPI JMW-3D
Summary of Contents for VPI Industries VPI JMW-3D
- Page 1 VPI JMW-3D Printed Tonearm Manual THIS MANUAL IS GOOD FOR COMPLETE ARMS OR ARMTUBES ONLY Setup and Instruction Manual VPI Industries, Inc., 77 Cliffwood Ave. #5D, Cliffwood, NJ 07721 http://www.vpiindustries.com...
-
Page 2: Before You Begin
A NEW BASE HAS BEEN DESIGNED FOR YOUR TONEARM. IT WILL SUPPORT THE ARM AT THE VTA TOWER AND AT THE CUEING MECHANISM. THIS SUPPORT GIVES THE ARM MUCH GREATER RIGIDITY AND PROVIDES DEEPER TIGHTER BASS RESPONSE. THE ARMS NOW HAVE THUMBSCREWS INSTEAD OF SET SCREWS FOR EASIER SETUP AND ADJUSTMENT OF VERTICAL TRACKING ANGLE (VTA, SRA) BEFORE YOU BEGIN... - Page 3 You can now see the arm tube and counterweight, with its delicate wire and Lemo connector, and the arm base assembly. If your arm is pre- mounted on a tone arm board, remove the small foam piece covering the "front"...
- Page 4 The JMW-3D tone arm comes with one large dropped counterweight installed on the rear shaft of the tonearm. For most cartridges you will only need this large weight. The counterweight is held in position by a setscrew. DO NOT OVER TIGHTEN THIS SET SCREW. ...
- Page 5 when playing a record. The arm is moving in 3-dimensions and will only approximate the accuracy you have built into your alignment. Slightly loosen the screws in the alignment jig and place into position by sliding the narrow end with the “V” cutout against the base of the male bearing uni-pivot.
- Page 6 REMEMBER: YOU ARE ALIGNING THE CARTRIDGE NOT THE HEADSHELL Double check the adjustments made above. The cartridge needs to be both centered and "square" between the gird lines and have the stylus resting on the dot or very close to it. ...
- Page 7 Following the gauge instructions set the tracking force to the cartridge manufacturer recommendation plus 1/10 of a gram more. We always recommend going to the high side when it comes to tracking force. High frequency vibrations can cause a light-tracking cartridge to cause more damage to the grooves than running a cartridge at a heavy setting.
- Page 8 F- ANTI-SKATING: REMEMBER: THE JMW-3D ARM NEEDS VERY LITTLE ANTI-SKATING FORCE IF ANY AT ALL! VPI has conducted careful listening tests over the last 20 years manufacturing tonearms and determined that every tonearm we tried sounded better with its mechanical anti-skating disabled and the tracking force very slightly increased.
- Page 9 G- ARM HEIGHT: Unlike many tone arms, the JMW-3D height is both easy and repeatable to vary. The knob next to the bearing housing bears a scale numbered from zero to ninety-nine. Below the knob there is an index mark engraved on the front of the support pillar.
- Page 10 H- CONNECTING TO THE PREAMPLIFIER/AMPLIFIER ONLY USE INTERCONNECTS THAT ARE SHIELDED AND PROPERLY GROUNDED. NON-SHIELDED INTERCONNECTS CAN HUM AND PICK UP RF. The ground connection is available to eliminate hum if necessary. If hum is present, first connect a ground lead from the connector block to the preamplifier or amplifier to which the output cable is connected.
Need help?
Do you have a question about the VPI JMW-3D and is the answer not in the manual?
Questions and answers