Speaker Modeling Program

Revision date: March 11, 2026

This is a simple modeling program for basic sealed and ported speakers. It uses the formulas that I derived in my speaker theory notebooks.

A quick note about the Pe parameter. The program doesn't use it. Instead, the program uses the Amplifier Power parameter for the excursion and port air speed graphs. This lets you figure out how your speaker will perform for your amplifier.

Site Map

Cone excursion in mm

Sensitivity in dB SPL @ 1m

Port air speed in mach

Reported Data



How do I save or share my design?

It's right here. Your entire design is encoded in this URL. It will reproduce your design if you enter it into your browser. You can send this URL to a friend or save it in a file as way to "save" your design. This works without sharing any information with me. My web page does not gather or store your information. I don't want it.



Raw data, use for your enjoyment.



Disclaimer

Copyright (c) 2014-2026 Francis Deck

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.