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In Reply to: No, the manual is correct.... for use with this ... posted by Garth on September 10, 2006 at 04:10:09:
Garth,Thanks for the reply and it is helpful.
Something still bothers me on what you said. The manual says 50 mm from the stylus tip to headshell base so in theory it should not matter what cartridge you use as long as you fix the cartridge so that the stylus tip (diamond) is 50 mm from the headshell base. As the base connector is identical for Ikeda and Orsonic headshells so as long as the 50 mm distance is correct we should not care whether it is a Ikeda headshell/cartridge combo or Orsonic/Ortofon combo. Am I missing anything here?
Follow Ups:
If it can't be aligned there is only one cause...just like experienced and Allan too, the mounting distance is wrong for the headshell/cartridge you are using.The Ikeda data is correct assuming null points of 60.5 and 117mm namely the effective length is 307 and mounting distance is 295.
So if you can't align it with the Stevenson protractor then the effective length is different due to the different headshell/cartridge.
Forget the 50mm thing for now. What is the distance from the pivot of the arm to the midway point of the slots in the new headshell? Add 10mm and that is approx. the effective length with the cartridge mounted at the midway point.
I moved the arm outward a bit until the cartridge shows alignment with the Stevenson protractor. I believe this is less elegant method but feel that the sound is more right after doing this.
I'm sorry but the Ikeda people expect the arm to be used as intended and if done so the dimensions they give in the manual are correct. If you change the effective length the mounting distance can no longer be correct.Be happy you have it working.
It was definately intended to be used with Stevenson null points too. The first mistake might have been to use Baerwald null points.
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