Folder-Archive-zip-iconAll calculators and manuals bundled in one archive for your convenience.

SAD calculator

This spreadsheet is the Swiss Army knife for subwoofer configurations. It helps you design, in real-time, cardioid configurations like end-fired and gradient. Physical (arc) and delayed (straight) horizontal arrays.

You can use up to 12 speakers with omnidirectional, cardioid, super-cardioid and figure-eight speaker patterns. Apply low- and high-pass filters. Look at arrival times both absolute and relative.

It displays frequency and phase responses for 7 microphones. Shows you SPL and polar plots. Lastly, nearly everything can be normalized in order to see relative differences.

As of version 1.4 the results can be exported into Meyer Sound MAPP XT for increased accuracy.

Parametric Phase Equalizer

This calculator provides a solution to achieve parametric phase equalization, both symmetrical and asymmetrical, using 2nd order all-pass filters.


This calculator allows you to approximate the position of the acoustic center for sealed and vented subwoofers based on their physical dimensions and driver diameter.

air absorption calculator

This calculator helps to determine the optimal postion for a single audience plane to align the main speaker and subwoofer.