Audio Software
The software offered here can take your QRD diffuser and subwoofer designs to the next level
- 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 An overview of this excellent free speaker design software from Finland
- Flare-it Design noise-free ports for your subwoofer
- 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
- Active High Pass Filter Good insurance for your bass drivers
- Subsaver Calculator for finding component values for the Active High Pass Filter