Custom Ported Sub Box Enclosure for 2 12" JBL W12GTi MkII Subwoofers ~ 4.5 CF | eBay
Custom Ported Subwoofer Box Sub Enclosure for 1 12" JBL W12GTi MkII Sub ~ 32Hz | eBay
W12GTI II | 12 inch Differential Drive Design Subwoofer
JBL W12GTI SUBWOOFER TECHNICAL DATA | ManualsLib
LAB SlapBox™ 2.00 ft^3 Ported MDF Enclosure Box for Single JBL W12GTi MkII
Looking for JBL W12GTI MKII Alternative Recommendations - Page 2 - Subwoofers / Enclosures - #1 Car Audio Enthusiast Forum in the world! | SMD | Meade916