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JBL GT Bass Pro 12 vs. Rockford Fosgate P300 12 - Battle of Powered Subwoofers - Decibel Results!! - YouTube
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JBL BassPro 12 - 12 inch powered subwoofer enclosure - Amplified sub boxes - Online Car Audio & Stereo Store
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JBL GT Bass Pro 12 vs. Rockford Fosgate P300 12 - Battle of Powered Subwoofers - Decibel Results!! - YouTube
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