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This Free Turntable Setup Tool online will assist you with setting up the cartridge geometry on your turntable.  With this software you can print a very accurate turntable protractor on a piece of paper.  Jaguar has personally compared the results of this software to the $50 Mofi and $250 Feickert protractors and found absolutely no difference.  It may not be as durable or convenient as those others, but it’s free.

This software was created by a super smart guy named Conrad Hoffman.  Here’s a link to Conrad’s website and a link to download the tool.


Using the Tool

  • Read Me: Start by reading the instructions in the Read Me file.
  • Spindle to Pivot Distance: Set this according to the specification given by the manufacturer of your tonearm.
  • Inner/Outer Groove Radius: These are automated calculations, based on the box you select on the right (don’t touch these figures).
  • DIN/IEC/Typical: These settings have to do with the distance of the music tracks from the center of the album.  Choose “Typical”, which is the most accurate, on average.
  • Printer Correction: It’s possible, but very unlikely your printer is not printing to accurate scale, on the X or Y axis.  The print will give you horizontal and vertical guides to measure with a ruler, to confirm the scale.
  • Arm ID: This allows you to label your sheet, for example, a particular tonearm name.
  • Lofgren/Stevenson: Choose Lofgren A; I recommend this because it generally provides the lowest amount of total distortion (Stevenson the most distortion); see the graphs below.
  • Print Arc Template: Click this button to finish.

CaptureTurntable Protractor

Lofgren ALofgren BStevenson* Note: Distortion calculations are dependent on the distance of the most inner and most outer groove, from the center.  Generally Lofgren A offers slightly less total distortion than Lofgren B and notably less than Stevenson.

* Source: John Elison