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Ultimate dB on Twitter: "Finished this 4th order band pass box for 2 12" subs for a customer. http://t.co/dxBXyE30Bc" / Twitter
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Custom Ported/Vented Sub Box Subwoofer Enclosure for 2 12" Subs - 3.1 CU FT - 32 Hz - 3" Aeroports : Electronics
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Bbox Dual Vented 12 Inch Subwoofer Enclosure - Pro Audio Tuned Dual Car Subwoofer Boxes & Enclosures - Premium Subwoofer Box Improves Audio Quality, Sound & Bass - Spring Loaded Speaker Terminals : Electronics
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Building a Bandpass Subwoofer Box | 4th Order Sub Enclosure Build / 2:1 Ratio / 2 Sealed 4 Ported - YouTube
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