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Free vehicle wiring diagrams and technical information for car stereo, car alarm, electronics installers. Ohm

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Car audio technical information with more than 125 individual pages, 50+ calculators and wav files. The covered topics range from basic electronics theory to more advanced topics such as speaker impedance as it relates to frequency, damping factor a...

Home theater forum for discussion of home theater systems design, construction and electronics... DIY subwoofers, Blu-ray reviews and DVD reviews.

DIY Audio and Video: FAQs, Tutorials, and Calculators for Speaker Boxes, Crossovers, Filters, Wiring and more.

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

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The online community for car audio beginners, enthusiasts and professionals. Find, compare and review the hottest car audio components, installers and installation shops in the world. Buy or sell your car stereo gear in our free online classifieds, s...

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