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JBL BassPro 12 12" Active Car Amplified Subwoofer with ...
GT-BASSPRO12 | Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience
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JBL GT Bass Pro 12 vs. Rockford Fosgate P300 12 - Battle of Powered Subwoofers - Decibel Results!! - YouTube