False assumption MC.
If all else fails, adjust by ear for minimum sibilance while enjoying increased resolution.Listen 👍
Step by Step How to Use a Digital Multimeter / Oscilloscope for Azimuth Adjustments
newguru, Seems you may be correct that your meter is not sensitive enough, but the spec for output voltage of your cartridge (2.2mV at 5/cm/sec) alone is not the final arbiter of whether or not your meter would work. Because we don't know what is the stylus velocity on the 1kHz test band; it might be 5X or 10X the standard velocity for measuring cartridge output, which would put you at least at the lower end of your meter's sensitivity. On the other hand, since crosstalk is going to be a tiny fraction of the signal voltage, and since that is what you ultimately will want to measure, you're likely to be out of luck for measuring the crosstalk directly. That was to be expected, and it is my fault for suggesting it might be even possible without amplification. So you are going to have to do the measurements at the output of the phono stage or preamplifier. The phono stage provides RIAA correction. The RIAA curve is flat from about 500Hz to about 2kHz, which is good, because it will be flat (zero correction due to the RIAA filter) at 1kHz. The output of the phono stage will be in a very comfortable range for either your scope or the meter function. (I gather your Hantech can function both a scope or as a meter.)I recommend that you read this article. It makes a good argument for the "physical" method of adjusting azimuth.http//korfaudio.com/blog36 With all respect, MC, I have no idea what you are talking about here or how it relates in any way to adjusting azimuth: "The problem with this one, it is like measuring an amp by watts. Do the most watts mean the amp sounds the best? Right. Waste of time." |
Newguru, all you have to do is get a test record with a test tone equal in both channels, reverse the leads on one channel at the cartridge, put your meter on AC and adjust the azimuth for the lowest voltage. Easy peasy. That gets your cartridge electrically oriented. The problem with this is that the physical azimuth may be different to one degree or another. If the stylus is not perfectly perpendicular you will be increasing record wear. Which is why many of us visually orient the stylus perpendicular to the groove and forget about electrical orientation. The best cartridges are very close so perpendicular orientation of the stylus gets you very close if not right on electrically. I prefer to protect my records. I can do this visually put putting the stylus down on a mirror. In good light the stylus and it's reflection will form an hourglass. You adjust the azimuth until the hourglass is perfectly symmetrical. You can use loops or some other form of magnification if you like. People who think they can do this listening have an inflated sense of self worth. They can not but, it is their records and they are more than free to ruin them. |
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