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GT-BASSPRO12 | Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience
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JBL BassPro Go Powered subwoofer (100-watt RMS amplifier) and built-in portable Bluetooth® speaker at Crutchfield
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Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics
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