Sonosub
Use this free software to assist you in building your high-pass filter
Subsaver saves you having to get out the calculator to work out the component values for your high-pass filter.
It will design a second-order filter, with or without added gain, and with or without a peaking response
Detailed information about the filter is available on the high-pass filter page, which covers the design notes, recommended power supply and how to use WinISD to select the filter characteristics

Subsaver screenshot - circuit view

Subsaver screenshot- graph view
Features of current version - V1.01
- Supports Butterworth filter, with user supplying the design frequency
- Supports SOS filter, with user supplying the design frequency and filter Q
- Supports Peaking filter, with user supplying peak frequency and peak magnitude
- Supports added gain to the buffer stage
- Circuit included in application
- Response graph included
- Print function on main screen
Security information: Filesize 90,112 bytes MD5 Hash Code 55F8C345EB64D5B47EC76B1DF9D35882
If you don't have them installed, you may need to grab the VB6 Runtimes - Windows XP already has them.
Changes to the software are tracked in the Version notes
For more information about using Subsaver, see the FAQ
Other software available on this site
Boxnotes - check your enclosure design for resonances. Print your cutting list
Sonosub - design a cylindrical subwoofer. Check resonances and clearances
Flare-it, - find the correct port flare size to avoid audible turbulence
QRDude - calculator for designing advanced QRD diffusers
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