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Test of the active Edge EDBX12ADSP-E3 subwoofer with built-in DSP and – Edge Car Audio
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Gigabass Thunder x400 active subwoofer bass test | Gigabass Thunder X400 Active Subwoofer Bass & Frequency Response Test! The Subwoofer can respond from 20hz at -10db, however, from 30hz you will get
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Best Buy: REL Reference Series 15" 1000W Powered Subwoofer Piano Black Lacquer NO.25