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Ground-Shaker L7QP28B 8" 30-Hz Dual Competition Ported Sub Box
| Brand | Ground-Shaker |
| CUTOUT DIAMETER | 9 3/8" |
| AIR VOLUME | 1.77 FT^3 |
| TUNING FREQUENCY | 30Hz |
| NO OF PORT | 1 SLOT PORT |
| DIMENSIONS | H8 1/2" W2" L25" |
| WEIGHT | 41 LBS. |
| MOUNTING DEPTH | 12" |
| FRONT BAFFLE THICKNESS 1" | 1" |
| HEIGHT | 10 1/4" |
| LENGTH | 29 1/4" |
| DEPTH | 18 1/4" |
| 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 SPRING LOADED TERMINALS |
| ENCLOSURE TYPE | PORTED |
| NUMBER OF SUBWOOFERS | 2 |
| SUBWOOFER SIZE | 8 INCH |
| Parts Warranty | 1 Year |
| Labor Warranty | 1 Year |
