sampsa55
Responses from sampsa55
| Time to choose: Baerwald, Lofgren, Stevenson ? In defense of the arc type protractor, the converse of your criticism of it is that if the P2S distance is not precisely correct, the arc type will tell you that, and you can fix the problem.If the tonearm is 1mm too far and you mount the cartridg... | |
| Time to choose: Baerwald, Lofgren, Stevenson ? Lewm:I recall seeing that white paper online, but have not been able to find it again. If you have a PDF, I'd appreciate it.The RS-A1 unipivot it supposed to be positioned so that the cantilever and tonearm are parallel or ideally on the same stra... | |
| Time to choose: Baerwald, Lofgren, Stevenson ? Lewm: I've been looking for that RS-A1 white paper. Do you have a link to it? | |
| Time to choose: Baerwald, Lofgren, Stevenson ? Found the Löfgren article from 1938 (and a more recent translation from German to English).One key assumption Löfgren made in calculating the distortion is that the lateral stylus tip velocity is 10cm/s. It seems others followed this assumption an... | |
| Time to choose: Baerwald, Lofgren, Stevenson ? I wasn't referring to a test, but to Baerwald's math models where he derives the distortion resulting from the stylus being at at angle to the groove and the results show the 2nd harmonic dominates. I don't have Loefgren's original paper, so I don... | |
| Time to choose: Baerwald, Lofgren, Stevenson ? You say alignment error causes 2nd harmonic distortion. Is this documented?It's in Baerwald's original derivation from 1941, where he shows the resulting distortion to be primarily 2nd harmonic. | |
| Time to choose: Baerwald, Lofgren, Stevenson ? Lewm & Fleib:The RS-A1 is a bit different as the cartridge is able to rotate and (possibly) maintain tangency to the groove. In Viv Lab and the Yamaha YSA-2, the cartridge is held straight and thus the cartridge will at the beginning and end o... | |
| Time to choose: Baerwald, Lofgren, Stevenson ? To illustrate, here are snippets from the manuals for the original tonearm of Yamaha GT2000, Ikeda IT407 tonearm, and Denon 308/309 tonearms on how to align a cartridge. They all say that the cartridge has to be straight in the headshell with the ... | |
| Time to choose: Baerwald, Lofgren, Stevenson ? Raul, I think you're missing my point and talking about something different. I’m not talking about Baerwald, Loefgren, or Stevenson, but whatever the alignment was that the tonearm in question was designed for and the resulting position of the sty... | |
| Who needs a MM cartridge type when we have MC? Victor Company of Japan was established in 1927 as a subsidiary of the US-based Victor Talking Machine Corporation and in 1953 became majority owned by Matsushita. The products used to be sold under Victor in Japan and under JVC (Japan Victor Comp... | |
| Time to choose: Baerwald, Lofgren, Stevenson ? Dear @sampsa55 : """ I align the cartridges based on the alignment the tonearm was designed for. Since most of my tonearms use removable head shells and were designed for a 52mm distance from the head shell connection to the stylus... """that’s tr... | |
| Time to choose: Baerwald, Lofgren, Stevenson ? Oh no, that's not at all necessarily the case. As others have pointed out, there's often a slight misalignment of the cantilever within the cartridge itself. Proper cartridge alignment aligns the cantilever to the record, and not the cartridge to ... | |
| Time to choose: Baerwald, Lofgren, Stevenson ? Thom,If the cartridge is aligned as designed by manufacturer, then the cartridge is straight in the headshell. Now move it another tonearm and align it according to that tonearm’s design: it will again be straight in the headshell. To the extent t... | |
| Time to choose: Baerwald, Lofgren, Stevenson ? I'm generally in the same camp as Lewm on this one: I align the cartridges based on the alignment the tonearm was designed for. Since most of my tonearms use removable head shells and were designed for a 52mm distance from the head shell connectio... | |
| Outer Platter Rings Thanks for the comments, perazzi28 & emailists. This could be worth checking out. But since TTW and URSR are no longer in production, are there other options outside of the rather expensive VPI? |