DIY Audio Wiki / Midwest Audio Club

A collection of free software for use by anyone, either hosted here or linked to another source.

These loudspeaker design tools are Microsoft Excel based programs. Versions are available for .xls (Excel 97-2003) and .xlsm (Excel 2007 & 2010). It is recommended that the Excel add-in: Analysis Toolpak be installed for full function of the programs. To read a detailed description of each program click on the name below. This will take you to the description and download page. Enjoy your speaker-building, and thanks for visiting. - Jeff

NOTE: The license for these files is not the one listed at the footer of this site, each is provided on the pages themselves.

• Passive Crossover Designer: Design passive crossovers and equalization networks.
• Woofer Box and Circuit Designer: The most accurate Sealed, Vented, and Passive Radiator modeling tool available - Complete with amplifier modeling and the ability to include room and baffle effects in the response
• Frequency Response Modeler and Phase Extractor: Applications for manipulating FRD files in many ways.
• Baffle Diffraction and Boundary Simulator: Baffle-step (diffraction) and room gain modeling.
• FRD Blender and Minimum Phase Extractor: (co-written with Charlie Laub) blend low and high regime FRD files and add in diffraction response. Add tails to response, and then generate the minimum phase wide-band response.