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JBL® GT-BassPro12
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JBL GT-BassPro12 12" Loaded Subwoofer Ported Enclosure w/ NVX Sound Dampening | eBay
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User manual JBL GT-BassPro12 (English - 9 pages)
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JBL BassPro 12 12" Car Audio 450 Watts Peak Powered Subwoofer System with Slipstream Port Technology - Road Entertainment
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Ming on Twitter: "JBL GT-Basspro 12 12" Bass Reflex Subwoofer Box - Subwoofer System (with amplifier) Power : 450 watt, peak 1350 watt https://t.co/g7uxrwIUn5" / Twitter
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