HEATKEYS

Provides bandpass, sealed and vented subwoofer box design software and science, math and engineering programs and freeware

Car audio help offers free information on car audio, car stereo, mobile video, satellite radio, a free newsletter and specialty articles on various topics from buying and installing car stereo equipment to maintaining and troubleshooting.

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

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Community Professional Loudspeakers has been a leading supplier of professional sound systems since 1968. Headquartered in Chester, Pennsylvania, Community distributes its products worldwide in over fifty countries.

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Atrend is the global leader in subwoofer enclosures. Our speaker boxes are manufactured by our staff of experienced audio professionals. We bring the boom so you don

The Subwoofer Design Toolbox by MFR Engineering is an easy to use but powerful program for designing subwoofers. The Car Stereo Cookbook explains how to design, choose and install car stereo systems.

This is a discussion forum dedicated to Home Theater and the products used.