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2.00 ft³ @ 30Hz Ported Enclosure Box for JBL® 12" GTi MkII Series (W12 – LifeAfterBass
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Subwoofer JBL W12GTI MKII specifications.
JBL W12GTi MKII 12" Subwoofer Demo | W12GTi Bass Test - YouTube
12 inch JBL 1200 GTI Grand Touring Automotive Competition Series Subwoofer for Sale in Eugene, OR - OfferUp
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JBL 1000 GTi 600 Watts Intercooled 10” Car Subwoofers made in USA | eBay
W12GTi MKII - JBL 12" 4000 Watt Competition Subwoofer
JBL W12GTi-MkII 12" Dual 6 ohm GTi Car Subwoofer
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