GT-BASSPRO12 ® 12" (300mm) car audio powered subwoofer system The easiest way to add high-output, low-distortion bass to any car system The JBL GT-BassPro12 powered subwoofer pumps out lush, car-rocking bass through a design so cool you ® won’t want to hide it in your trunk. The patented Slipstream port design delivers deep bottom end while minimizing turbulence.
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