Free Software

The software offered here can take your subwoofer speaker design to the next level

Boxnotes Determine your enclosure dimensions taking into account the space occupied by ports and the driver. Adjust the height / width / depth ratios to minimise problem resonances within the speaker. Print your cutting list
Sonosub If you prefer to use sonotube to build a cylindrical subwoofer, this software will help
Flare-it Determine port diameter and flare size to minimise turbulence for your subwoofer design
Active High Pass Filter Good insurance for your bass drivers
Subsaver Calculator for finding component values for the Active High Pass Filter
QRDude Design advanced QRD diffusers
QRD Technical Reference A detailed explanation of the theory behind Quadratic Residue Diffusors. Follows on to the QRDude User Guide and Sample Build
WinISD A look at some of the features of this free speaker design software from Finland