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Patent US7103193 - Bandpass woofer enclosure with multiple acoustic fibers - Google Patents | Car audio battery, Subwoofer box design, Speaker plans
Acoustical Designs Inc. - 4th order bandpass center console enclosure design for a Sundown audio X v.2 12", for a chevy silverado 1.15 cubes net sealed 2.55 cubes net ported, tuned to
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