W15GTI II | 15 inch Differential Drive Design Subwoofer
W12GTI II | 12 inch Differential Drive Design Subwoofer
FS or FT: JBL GTi 12" W12GTi MKII Subwoofer | Car Audio Forum | CarAudio.com
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Looking for JBL W12GTI MKII Alternative Recommendations - Page 2 - Subwoofers / Enclosures - #1 Car Audio Enthusiast Forum in the world! | SMD | Meade916
2) Minty JBL W12GTI subs 1) is MKII TRADE FOR CURRENT HIGH END HU w 4 way active | DiyMobileAudio.com Car Stereo Forum