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In Reply to: okay, i did some research posted by OMalley on September 16, 2006 at 18:04:46:
>>I get it. Finally. The SRA is the angle which the stylus
>>is situated in the groove.Yes.
>The VTA is the angle of the tonearm.
No. The angle of the tonearm is added to the SRA and VTA, however.
VTA is the angle of the cantilever to the surface of the record, and therefore defines the arc through which it will swing when the stylus is pressed on. Therefore, VTA is the tilt of the pickup assembly and SRA is the fore/aft tilt of the diamond.
Follow Ups:
i said the arm. but i knew that the cartridge, being aft down or toe up, was the vta. Why did i say the arm?Thanks Bry.
Just to be ultra clear...The VTA is the angle between horizontal and the cantilever. It's generally specified for the cartridge top being horizontal, and it takes into account how the cantilever will sit at the specified tracking force.
When you move the arm up and down you affect SRA and VTA, but it's the SRA that people are looking to tweak, the idea being to try and align the contact edge with the waveform ridges in the groove wall.
ultimatly i knew that getting the stylus within the groove was 'the thing.' I was nhit with a little Elison pedantics a ways back but that helped to clear up my understaning.Thanks Bry, and thanks Elison.
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