What is you tonearm’s Maximum Distortion?

Greetings 

Per VinylEngine’s calculator my arm reads as follows:

Max. Tracking Angle Error: 1.86 degrees 

Max. Distortion: 0.64 percent 

Avg. RMS Distortion: 0.41 percent

Joe Nies

Using a protractor like the Wally unit or the SmarTractor you can adjust almost any set up to a number of alignments by playing with overhang and offset so that the cantilever is tangent at the two null points. 

Dear @fusian  : You need two additional parameters to make the tonearm/cartridge set up and achieve those figures of lower distortion levels and that I don't gave you and are the null points that are: 80mm. and 126mm. not the one you are using today.

R.

This spreadsheet…
 

@rauliruegas 

Forgot that if you want lower distotion figures then and using Löfgren A alignments its tonearm parameters set up are:overhang  21.58mm and offset angle  24.8°.

Where the maximum error  0.94°   maximum distortion  0.33%  and average distortion  0.22%.  All these for your P2S  225mm.

 You need two additional parameters to make the tonearm/cartridge set up and achieve those figures of lower distortion levels and that I don't gave you and are the null points that are: 80mm. and 126mm. not the one you are using today.

are the three quoted sets of numbers referring to the same setup?  

Like Lew, I am skeptical of the accuracy of the 'calculated' distortion numbers since the whole description is to vague. @nrenter  posted a screen grab to John Ellison's Excel spreadsheet.  which can be found on the Enjoy the Music site. This file has the description below of what the calculated percentage distortion refers to.

   Tracking Distortion (Column D) is based on dividing tracking error by groove radius; this is also called weighted tracking error.  Be advised that these numbers are scaled   so that they represent actual percent tracking distortion at a stylus tip velocity of 10 cm/sec.  In other words, the number 1.0 in Column D represents 1-percent distortion.

dave