Overview:

This is a calculator for designing a 4th Order Bandpass Enclosure.  The formulas used in the calculator create a generic design that suggests a simple and flat response in an anechoic environment based on the number of drivers, the thiele small parameters and the allotted dimensions specified in the user’s input fields.

The calculator does NOT take into account the effects of placing the enclosure into the listening environment nor does it take into account the amount of power you intend to use with your speakers.  This type of enclosure may not be the most suitable option for your application.  I recommend reading the DB Dynamix Audio's Loudspeaker Enclosure Design Philosophy article page for further information.

Feel free to check out the other calculators on the site as they may provide the results you are looking for. —> Enclosure Calculators You can also help build our loudspeaker enclosure design blueprints database by submitting custom design information for your driver(s)/application by filling out the form in the Blueprints Inquiry page. 

The spreadsheet calculator loads via iframe below the diagrams.  You can also access the spreadsheet here.

Instructions: