VPI Azimuth Ring - A forgotten asset?
One of my chief complaints regarding the set up of the wonderful VPI JMW 12 tonearm series (I own or have owned 12.5, 12.6i, and 12.7i arms) has to do with setting the azimuth.
Using the new teardrop counter weights, once you set the correct VTF, you then adjust the azimuth. However, to do this you must again use the counter weight and rock it left or right depending on how the stylus sits inside the record groove. Here is the rub: Whenever I do this, the VTF changes and I have to repeat the procedures until I get bored with the whole thing or drink too much Single Malt Scotch (I prefer the Highland Single Malts).
Recently, I discovered (or re-discovered) the VPI azimuth ring that is attached to the base of the wand by way of 2 hex set screws. Current versions of the azimuth ring have ears that jut out from the circumference of the ring.
Now, after I set the VTF and lock that down, I rotate the azimuth ring slightly (flat side of the ring towards the downward tilt of the cartridge) until the correct position (equilibrium?) is achieved and lock that down as well. Done!
What was once a series of frustrating steps is now a very pleasant procedure.
My good friend, Analogue Bob, finds fault with this set up system. Analogue Bob claims that rotating the ring causes the wand to become less stable. Since it is usually his well-aged Single Malt Scotch I am drinking, I do try to be respectful of his thoughts.
By the way, the 12.5 wand sits nicely on the 12.7 bearing.
Also, that small hole at top dead center of the wand – it is for minute (pronounced: my-newt) height adjustments of the female/cup bearing off the male bearing. Using a hex wrench, tiny height adjustment may be achieved.
I wonder if HW has thought on this set up procedure?