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In Reply to: RE: Azymuth adjustment using the bubble level posted by Akolegov88 on November 08, 2021 at 13:00:26
cantelivers do not always line up within the cartridge. Best to do azimuth adjustments by measurements and then tweek by ear. That will give you a good starting point...
Follow Ups:
Not only may cantilevers be misaligned but the entire electro-magnetic works in relation to the body shell. All that a bubble level can tell you is if the body is in line with the headshell.That has nothing to do with finding correct azimuth except in circumstances where body shell and internals are in perfect alignment ( NB: not impossible but not necessarily the case either).
If you are concerned with correct azimuth the only way to set it is with a test disc and meter or oscilloscope. Do it by ear? Are your right and left ears' hearing identical? If so you would be unusual.
"We need less, but better" - Dieter Rams
that is the final instrument in the chain. If the test recordgives you one result but a minor tweek one way or the other gives you a wider sound stage which would you pick?
nothing can beat than with a test disc.
The goal of azimuth adjustment is to get the stylus vertical in the groove and that is very difficult without a good microscope. The diamond may not be set true to the cantilever and the cantilever may not be perpendicular to the headshell so the bubble level is only a guide. Methods that adjust cross-talk account for cantilever to coil alignment and not the stylus in the groove. I believe there is a measurement system with test disc that has inter-modulation distortion tracks and the best objective adjustment is get the amount of measured distortion equal in both channels. I suspect this is an expense piece of set-up equipment.
If you want to go ahead with the bubble level then I suggest weighing it, subtract that amount from the tracking force and lower the arm on to a record with the bubble-level on the headshell. You could adjust that level and hope that the stylus is perpendicular to the headshell.
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