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Amazon.com: LAB SlapBox 2.00 ft³ Ported/Vented MDF Sub Woofer Enclosure Box for Single JBL 12" GTI MkII (W12GTi MkII) Car Subwoofer | ¾ Premium MDF with 1" MDF Front Baffle | Made
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LifeAfterBass SlapBoxJBLW12GTiMkII 2.00 ft³ PORTED @ 30Hz ENCLOSURE BOX for JBL® 12" GTi (W12GTi MkII) SUBWOOFER
2) Minty JBL W12GTI subs 1) is MKII TRADE FOR CURRENT HIGH END HU w 4 way active | DiyMobileAudio.com Car Stereo Forum
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