DOWN4SOUND | PRO-FAB – BIRCH – 4X 8-INCH PORTED SUBWOOFER ENCLOSURE – 19+ GM/CHEVY CREW CAB – 2.5-INCH SEAT LIFT REQUIRED

Designed for the 2019+ GM/Chevy Crew Cab, this Down4Sound PRO-FAB enclosure is tailored for audio enthusiasts seeking deep, powerful bass. Featuring four 8-inch subwoofer openings, it is precision-tuned to 32.5 Hz to ensure excellent sound performance. Crafted from premium birch wood and coated with a polyurethane bedliner, this enclosure is built for durability and superior audio output. A 2.5-inch seat lift is required for proper installation, making it ideal for high-performance audio systems. Compatibility: 2019+ GM/Chevy Crew Cab (Under Seat, 2.5-Inch seat lift is required BUT IS NOT INCLUDED) Configuration: Quad 8-inch subwoofer openings Material: Premium birch wood with polyurethane bedliner coating for enhanced durability Outside Dimensions: Width: 52 inches Front Height: 8 5/16 inches Rear Height: 13 inches Depth: 14 3/4 inches Speaker cutout diameter () : 191.41 mm – 7.54 in Net Airspace (After Displacements): 2.47 cubic feet Port Information: Port Area: 10.98 square inches each Port Depth: 29 inches Tuning Frequency: 32.5 Hz Recommended Subwoofer: Optimized for Down4Sound DBz 8″ Subwoofers ****ALL SALES ARE FINAL****