lewm7,338 posts11-22-2019 2:03pm
If you rotate the arm wand, it seems to me the phono cartridge should ideally only be moving in one plane. If it’s moving in more than one plane, that suggests some error in either the pickup arm geometry itself and/or the arm’s manufacturing tolerances. Normally, zenith would be adjusted by simply rotating the cartridge within the headshell, no?
If when you rotate your arm wand to set azimuth it also alters the zenith of the phono cartridge, how do you then adjust the zenith (after setting azimuth) to the correct angle?
If you have a pivoted tonearm with headshell offset, and if you then alter azimuth by rotating the arm wand back near the pivot (BEFORE the headshell offset angle is introduced), then the headshell itself not only rotates in the vertical plane described by azimuth but it also changes angle in a second plane which would alter the horizontal.Perhaps it’s because I’ve never used a pickup arm that adjusts azimuth with the arm wand that I’m having such trouble understanding this. In particular, I don’t see how offset affects this angle, but maybe that isn’t what you meant to say.
If you rotate the arm wand, it seems to me the phono cartridge should ideally only be moving in one plane. If it’s moving in more than one plane, that suggests some error in either the pickup arm geometry itself and/or the arm’s manufacturing tolerances. Normally, zenith would be adjusted by simply rotating the cartridge within the headshell, no?
If when you rotate your arm wand to set azimuth it also alters the zenith of the phono cartridge, how do you then adjust the zenith (after setting azimuth) to the correct angle?