The Sealed Enclosure
This tutorial is in sections. The first page provides a little background on how and why I have used the work of Richard Small to gain an understanding of and create a concise real-world methodology for the design of a simple sealed loudspeaker system.
Below are links to spreadsheets that present graphic illustrations of these concepts.
Start Here: Background on the Sealed, Closed-Box System
Model General Sealed Enclosure
Model Sealed Enclosure Specific Woofer