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In Reply to: RE: That's just an old wives tale... posted by John Elison on March 27, 2015 at 12:20:11
My current Gieger FGII (much like Orts.Rep100) is easily the most sensitive cart I've had concerning proper azimuth.
J.Carr ...
"If the stylus has straight-sided walls, this may very well be the case. However, modern high-quality Japanese line-contact styli like Namiki's MicroLine (microridge) or Ogura's PA have a gentle radius on the sides, so that even if you get the azimuth slightly wrong, you won't recut the LP groove."
tb1
Follow Ups:
However, unless you use a microscope to set stylus azimuth, you'll never know for certain whether it's set correctly.
On the other hand, most of don't care about stylus azimuth. Instead, we want to minimize crosstalk and maximize stereo separation, which is the purpose of a Fozgometer.
The reason we don't care about stylus azimuth is because the edge of the stylus that contacts the groove is curved to allows the stylus to be tilted in either direction a few degrees. It normally requires less than two degrees to adjust for electrical azimuth.
If you believe your cartridge has been manufactured properly, all you really need to do is set the cartridge body level with the vinyl surface for zero-degree azimuth and the stylus should be perfectly perpendicular in the groove. That is a very simple process. You really don't even need a mirror. Simply shine a flashlight at the front of the cartridge when it's playing a record and observe its reflection on the vinyl surface. However, this method has no influence on crosstalk and stereo separation.
Best regards,
John Elison
"However, unless you use a microscope to set stylus azimuth, you'll never know for certain whether it's set correctly."Well, certainly true if you don't trust your ears, however setting azimuth by ear using a test record is something I'm very comfortable doing, furthermore, it provides me the exact SONIC result I covet. It's long been sonically obvious that a wider more dimensional soundstage is equivalent to attaining less crosstalk, greater separation.
Personally, I put more stock into physical azimuth, if you've ever dealt with a FGII or Ort100 stylus, you'd understand that requirement.
"The reason we don't care about stylus azimuth is because the edge of the stylus that contacts the groove is curved to allows the stylus to be tilted in either direction a few degrees. It normally requires less than two degrees to adjust for electrical azimuth.:"
Many different shapes/curves exist, as John Carr stated, some are more line orientated than others. The FGII isn't nearly as curved as the microline, just one example.
"If you believe your cartridge has been manufactured properly, all you really need to do is set the cartridge body level with the vinyl surface for zero-degree azimuth and the stylus should be perfectly perpendicular in the groove. That is a very simple process. You really don't even need a mirror. Simply shine a flashlight at the front of the cartridge when it's playing a record and observe its reflection on the vinyl surface. However, this method has no influence on crosstalk and stereo separation."
Well ... thanks John ... but I wasn't asking for your advice. In fact, your "simple" method above represents my starting point, I'll still need to continue using a far more comprehensive methodology to achieve the results I'm already attaining.
tb1
Edits: 03/27/15
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