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Black 12" 30-Hz Dual Competition Ported Sub Box
| Brand | Ground-Shaker |
| CUTOUT DIAMETER | 11 1/8" |
| AIR VOLUME | 3.98 FT^3 |
| TUNING FREQUENCY | 30Hz |
| 1 SLOT PORT (DIMENSIONS | H12 1/2 W3 1/2 L27 1/2) |
| WEIGHT | 81 LBS. |
| MOUNTING DEPTH | 20 1/2" |
| FRONT BAFFLE THICKNESS | 1 3/8" |
| HEIGHT | 14 1/4 |
| LENGTH | 37 1/4" |
| DEPTH | 22" |
| MATERIAL 1 | 3/4" 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 |
