Down4Sound PRO-FAB - Birch - 4X 8-INCH Ported Subwoofer Enclosure - 19+ GM/CHEVY Crew CAB - 2.5-INCH Seat Lift Required
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Subwoofer Wiring Diagram
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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.
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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
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Width
52 inches -
Front Height
8 5/16 inches -
Rear Height
13 inches -
Depth
14 3/4 inches - Speaker cutout diameter (Ø) : 191.41 mm - 7.54 in
Net Airspace (After Displacements)
2.47 cubic feetPort Information
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Port Area
10.98 square inches each -
Port Depth
29 inches -
Tuning Frequency
32.5 Hz
Recommended Subwoofer
Optimized for Down4Sound DBz 8" Subwoofers
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