Him inner null point is almost out of range.Īccording to an AT engineer, the AT-LP120 overhang is NOT 15mm, but 16MM: This is worse result of all four on graph. _sheet.pdfįileFixer wrote:AT protractor have this result. I am wondering about the AT protractor you reference as being 'wrong'.is it the same one that I linked?. You know, FileFixer, that I am using the Lofgren A that you tweeked, at your suggestion. In that case Stevenson and AT never touch second null point with zero tracking error and zero distorsion. AT, Stevenson, Lofgren A (Baerwald) and Lofgren B protractors and decide what is best for your ear.īest numbers on paper have Lofgren A and B.ĪT have problem with wrong measurement, Stevenson have problem when inner groves stops before second null point (shorter side on LP with recorded music).

In the end I came to the results that are best Lofgren A and Lofgren B in benfit to Lofren A on inner and outer grooves.īest way is to try all of them. After that I got the idea, why it could not be better, and then I started to investigate this problem. This protractor from AT is my first protractor with which it had setup TT. Happy tracking (or in this case, aligning),įileFixer wrote:Will be almost identical but difference is between 1-3mm. Which would be best? Ideally, they would end of 'matching', and I am about to find that out. For example: my new SHURE cartridge came with it's own protractor, and I have a different protractor published by the TT folks. My other half respects that each manufacturer (should) know best how the cartridge should align. The cartridge reacts perfectly all down the arc, so it has to be 'good'. Half of me thinks that if you can get your cartridge to react perfectly on a respected arc protractor (ie: Technics Baerwald arc protractor), then all the debate as to tonearm lengths, overhangs, and whatnot, become moot. I'm beginning to believe that protractors are like peanut butter: every brand does the job just fine, but we all have our favorite(s)! I myself have no problems, it sounds and works perfect. Reloop looks very similar to ATLP-120, also DD with S-shaped tonearm, many parts are actually the same. Vinylfreak86 wrote:I have used Stevenson protractor to align Ortofon cartridge on my Reloop RP-2000 turntable.

Audio technica lp120 troubleshooting