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.