thank you ALL...arm is already mounted, and fixed. As noted, the headshell is slotted, so besides allowing adjustment of ZENITH, the distance from the pivot to the stylus can be changed by about 2 cm, plus/minus....this is what I remain confused about
cartridge mounting
SO, my Reed 2G tonearm was mounted and set up originally professionally. I have an extra headshell which I have mounted a new cartridge on...the headshells allow the cartridge some feedom of position, changine the effective distance for teh tomearm mount to the stylus, as welll as ZENITH....I understand the importance of zenith, but how about the effective lentgh?
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I realized after posting that if you change the usually fixed headshell offset angle. Which changes effective length, you might compensate for that by moving the pivot with respect to the spindle. (Effective length = pivot to spindle + stylus overhang.) But since every cartridge will have a different zenith error, that is not practical, unless you had an SME or Dynavector tonearm with its moving pivot optional accessory. I’d say work it out with a good protractor or just twist the cartridge body only. |
lewm OP did mention Zenith, I don’t have a tool or method for it specifically. Because he didn’t mention Overhang (or Null Points which for pivoted arms really is about averaging Zenith Error) I decided to re-post my list for OP and/or others following this. I want to get it ’right’, but resist trying for perfection. In my world, inexpensive tools/simple methods, I am unable to see/ascertain Zenith Error. I don’t think I don’t have it, I believe in averages, but my cartridges give great imaging and involving sound, not the problems he describes in the video at 2:40 Ray at VAS just checked, cleaned and ok’d all of my styluses, he didn’t mention zenith which is not proof, just saying nothing caught his attention. This chart shows over 80% of cartridges WAM recently checked have issues averaging just over 2% https://www.youtube.com/watch?v=0XAbw1BjdF8
It’s the makers job to get it within industry standards, and I have lived my whole life with whatever they sold me. Never get it right: Inward skate happens naturally, anti-skate we make happen to compensate: It varies moment to moment due to varying degrees of friction during play. We can only make a best average. Null Points, which is about Zenith, we can only set a best average, theoretically a longer arm helps, I had years of 12.5", Oh Happy Day, but I would never say I could hear ’better’. I think ease of height and azimuth adjustment are far more important to achieving better results.
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