Custom Ported Subwoofer Box Sub Enclosure for 1 12" JBL W12GTi MkII Sub ~ 32Hz | eBay
Looking for JBL W12GTI MKII Alternative Recommendations - Page 2 - Subwoofers / Enclosures - #1 Car Audio Enthusiast Forum in the world! | SMD | Meade916
JBL W12 GTI MK2 | DIYMobileAudio.com Car Stereo Forum