VPI Classic/Clear Audio Maestro Wood Question

Mjglo, Thanks for your comments.

I agree 100% with what you said, particularly using the bubble level to adjust azimuth. Hence, I set the azimuth with the level using the tonearm lift to gently lower the arm to just touch the record a tad. I then checked the level at the point of contact and determined which way to rotate the tonearm weight. The process was iterative and a pain in the as* because the adjustments were just a hair touch and everytime I screwed with azimuth, I affected VTF. FWIW, I agree that using the bubble level could damage the cantilever unless extreme care is used, but it's inherently much more accurate than using the aluminum rod. The rod is useful to do an "eyeball-double check" of azimuth. You're right . . . it takes time and patience.

BTW, as I mentioned above, I do not use the external AS rig, but as you said, just a little twist of the arm wire is plenty.

It has taken time, but it was fun!

Another simple method to fairly accurately eyeball azimuth angle, and will be free of cost, is use a thin mirror to set the Stylus upon, and the symmetry of the Stylus, and the reflection of the Stylus in the mirrror should be noticeable if it is off.

What you're looking to achieve-see, is a precisely symmetrical hourglass shape.

And the Mirror can be something as simple as a CD you don't much care about, to set the Stylus upon. Neither Glass, or Plastic will hurt the Stylus.

This view of the Stylus from the exact front of the cartridge can be enhanced by the use of a Jeweler's Loupe, or a magnifier.

Glad to hear things are getting better with the set-up! Mark

Azimuth can only be ball parked by levelling. I'm not saying you're wrong to do it that way, but ultimately there are better ways to align the actual stylus with the groove rather than aligning the body. The azimuth adjustment is one for lowest crosstalk. If you have a balance control you can do it by ear and a mono record, preferably a vocal. You can get a test record with tones to set azimuth. These are 1KHz tones in one channel at a time. You adjust it so you have equal output in whichever channel is quiet - balanced. A tech can view the outputs on a scope or a computer screen. You can also buy programs or testers that will help you. Soundsmith has a set-up device for $900 that will do everything but your dishes. Feikert had a program for $350 that you use with your PC. I really don't think they are necessary if you're willing to spend a little extra time. An Analogue Productions test record is $50. Most of the tests require test equipment that only a tech has. You can do azimuth by ear and a balance control, just like a mono record.

Every set-up parameter is interrelated. Sometimes when you make an adjustment, another has to be tweaked. I'm not sure whether you were referring to the back or front of your cantilever being angled. But you have to be sure you're viewing straight on and not at an angle. Your lighting has to be even and not coming from one side or the other. This will effect results. It could easily look different than it really is. If the arm is closer to the spindle than the needle is, you need more anti-skate, and visa versa. Yes, it can change the angle of your cantilever. The thing is, anti-skate requirements vary at different parts of the record and at different groove velocity. So you should find a setting that sounds reasonable for what you normally listen to. Skating force is very real and to think otherwise is deluding yourself. I have no experience with a VPI arm, maybe you always have some anti-skate?

You might want to consider Soundsmith to re-tip your Virtuoso. For $350 you can get a ruby cantilever/micro stylus. I'm sure this will outperform the stock stylus. It will probably better the Maestro. It appears to me that all the CA MMs share the same generator, at least the top ones. Inductance and resistance are identical.
Regards,

You simply can not "eyeball" that rod correctly. My suggestion is to put some small block of wood...dominos, Cardas blox, etc. under the ends of that rod so that you can determine if it is indeed square. I suspect you are very much off the mark. In addition, I would be very suspect of that cartridge...

Stringreen, thanks for your suggestion -- it makes sense. What do you think about my careful use of placing a tiny bubble level on the tone arm head just over the cartridge, perpendicular to the tone arm wand, to measure azimuth? As I mentioned in a post above, I take great care when lowering the tone arm onto the record to avoid crushing the cantilever.

FWIW, after I very carefully adjusted azimuth using this method, I double checked my results with the VPI aluminum bar thingy. Based on an "eye-ball look see," it seemed as though azimuth was lookin' good.