VPI JMW setup

The Adjust Pro + works really well for azimuth if you have a arm with a headshell that can rotate.

On a unipivot arm like my VPI 10.5i, it is a bit difficult as you have to use the counterweight and is very touchy. And you can not place the level on the headshell and take measurements as the arm rests on the arm rest and won't give correct reading that can be reproduced.

I've also noticed that the jmw9 mem is much less resistant to hum than my old rega, and really needs to have a good ground. I am using a pair of harmonic tech silver crystal phono cables as well as having made a ground strap for the bottom of my hw19 plith. the difference when disconnecting either the ground wire for the cables or the plinth is very noticable.

This is how I adjust for azimuth with my VPI 10.5i. I use the rod method, however, it is difficult to see accurately if the rod is truly horizontal....so..... I use a Cardas wood block (looks kind of like a domino). I took 2 of the blocks, and added a metal washer on top of each one. I put one under each end of the rod that is resting on the tonearm headshell...with the cartridge cued down on a record. If you position the 2 blocks under those ends, and if you made the blocks/washer, be just high enough to barely touch the rod ends, or slightly lower, it is very easy to square up the arm.

I think the point of Adjust is to reveal the shortcoming of the visual method.

Having the cartridge at a 90 degree angle visually does not guarantee correct azimuth...

I found the JMW9 hum problem to be best solved with good SHIELDED cables from the junction box to the phonostage. I do still need a ground wire from the junction box ground screw lug to the phonostage and I also tie that junction box ground wire into the ground wire that exits out the bottom of the tonearm shaft.