JMW 9 3D Arm

JMW 9 3D Arm

Postby plantboy » Tue Jun 13, 2017 11:49 am

On the web page for the JMW 9 (, it gives the following specs:

Pivot to spindle: 223mm
Effective length: 240.7mm
Effective Mass: 10.2g
Overhang: 17.7mm
Offset angle: 22.85 degrees
Average RMS distortion: .36%

I am assuming some of the above is the same for the 3D version of the arm, but I wanted to ask to be sure if anything was different, and if there are any slight differences in cartridge compatibility?

I am assuming that the 3D version's headshell cannot be tilted at all to adjust azimuth, and as such your cartridge cantilever needs to be very close to a 90 degree angle to begin with. So perhaps a little bit less adjustable, but I'm going to assume most agree that's a good tradeoff for what the arm gives back for that tradeoff.

Scout 1.1; Ortofon 2M Bronze; Rega Fono; Peachtree Audio Nova; Chord Odyssey 2 speaker cables; Magnepan MG12;
Posts: 44
Joined: Thu Nov 27, 2014 12:38 am

Re: JMW 9 3D Arm

Postby JRM » Tue Jun 20, 2017 3:30 pm

Can anyone provide a review of the JMW 9 3D Armwand? This may help answer the question.
Posts: 42
Joined: Mon Mar 23, 2015 4:10 pm

Re: JMW 9 3D Arm

Postby thegage » Tue Jun 20, 2017 4:06 pm

I don't believe the 9" 3D is available yet. When it is, as it is a uni-pivot I assume azimuth will be adjusted the same way it currently is: using the counterweight or side weights.
Senior Member
Posts: 395
Joined: Wed Sep 17, 2014 9:41 am

Re: JMW 9 3D Arm

Postby edw » Tue Jun 20, 2017 10:14 pm

There are a few out there already - unfortunately not me :(

User avatar
Senior Member
Posts: 171
Joined: Sat Mar 12, 2016 9:02 pm
Location: NY/NJ

Re: JMW 9 3D Arm

Postby Mat » Thu Jul 13, 2017 2:37 am

We are making and shipping them now :) Easy drop in upgrade!
Mat Weisfeld
VPI Industries Inc.
User avatar
Site Admin
Posts: 985
Joined: Mon Aug 25, 2014 5:19 pm
Location: Cliffwood, NJ

Re: JMW 9 3D Arm

Postby husafreak » Thu Aug 24, 2017 5:20 pm

Hmmm, I don't see this on the website. What are my options regarding an arm upgrade for my Scout II? A 9" 3D arm obviously but what about a 10" arm? I didn't realize that could be done.
VPI Scout 2/JMW9-3D arm/Sumiko Blackbird/VPI Periphery Ring/HRX record weight/Pheonix Falcon PSU/Timber Nation Maple Isolation Platform/Target Wall Stand/VPI HW-16.5/Ortofon 6NX-TSW-1010/Krell KSL/KSL phono/KST/XLOPro/Harbeth SHL5+
User avatar
Senior Member
Posts: 473
Joined: Thu Apr 16, 2015 9:53 pm
Location: NorCal, Bay Area

Return to Mat's Corner

Who is online

Users browsing this forum: No registered users and 5 guests