Free (DOS based) Loudspeaker design software.

A collection of DIY Speakers projects by Paul Carmody.

A number of well documented speaker designs that are very practical and keep budget in mind.

Home theater setup as well as links to DIY speaker projects and other projects.

Intermediate guide to building a budget home theater and speaker system.

Dennis Murphy displays some of his better non-commercial designs and modifications.

Features DIY Speaker Projects and a blog.

Lou Caraggio shares many excellent and affordable speaker designs.

DIY Speaker site that displays a number of non-rectangular DIY speaker projects. There are also some nice primers on how to construct curved speaker enclosures and creating crossovers.

Information on HiFi electrostatic loudspeakers. Contains information on how to get started and build a basic panel.