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Showing results for tags 'HELPSubBox2015GMC 2 10s'.
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I need help with a ported Sub box for my 2015 GMC Sierra Double Cab (Four Door Extended Cab). I would love if someone had blueprints so I can build it myself. If it could be Down firing with the 2 ports facing forward, but I wont be picky. --Thank You Everyone MAX size (Front Height 11" , Back Height 7.5" , Depth 16.5" , Width 55") - Recomended Ported Box Size- 1.0 Cubit Foot per Sub - I think it should be tuned to 32hz Sundown Audio SD-3 10" Dual 4 Ohm RE : 7.00 ohms FS : 25.5 Hz VAS : 39.3 L QES : 0.50 QMS : 3.53 QTS : 0.43 LE : 7.49 mH BL : 18.57 NA MMS : 152 g CMS : 260 uM/N SENS : 83.1 dB