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Black 12" Dual Ported Sub Box, Fits 07-18 GMC Sierra Extended Cab
| Brand | Ground-Shaker |
| CUTOUT DIAMETER | 11 1/8" |
| AIR VOLUME | 1.25 FT^3 |
| TUNING FREQUENCY | 36Hz |
| 1 SLOT PORT | DIMENSIONS: H1.5" W5" L9" |
| WEIGHT | 37 LBS. |
| MOUNTING DEPTH | 6 1/2" |
| FRONT HEIGHT | 9 1/4" |
| REAR HEIGHT | 7 1/4" |
| LENGTH | 55 1/2" |
| DEPTH | 13 1/2" |
| MATERIAL 1 | 5/8" HIGH QUALITY MDF WOOD |
| MATERIAL 2 | CARPETED WITH DURABLE TRUNK LINER FINISH |
| MATERIAL 3 | SEALED WITH HIGH QUALITY TITEBOND SILICONE |
| MATERIAL 4 | GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE |
| MATERIAL 5 | 2 BINDING POST TERMINALS |
| COMPATIBILITY 1 | FITS UNDER REAR SEAT BEHIND THE DRIVER'S SIDE |
| COMPATIBILITY 2 | DOWN FIRING |
| COMPATIBILITY 3 | WILL NOT FIT 2007 CLASSIC |
| ENCLOSURE TYPE | SEALED |
| BOX TYPE | WITHOUT SUBWOOFER |
| NUMBER OF SUBWOOFERS | 2 |
| SUBWOOFER SIZE | 12 |
| VEHICLE MAKE | GMC SIERRA EXTENDED CAB |
