Ideal SRA Calculator

Once you have determined your "Native" Stylus Rake Angle (SRA) using the WallySRA *, install the front/back (SRA) WallyReference blade (Indirect Azimuth - Type I or True Azimuth - Type II depending on your tonearm mechanism type) and enter the information in the calculator below. The result is a figure that you should raise or lower your tonearm by - using the WallyReference as the measuring tool - in order to achieve a perfect 92 degree SRA under dynamic (record playing) conditions.

* Or other method in which you can confirm:

1. Top surface of the cartridge is perfectly level 

2. Nominal VTF is applied

3. Photograph is taken exactly from the proper angle

WallySRA available in late 2020.


Santa Rosa, CA 95404

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