About the SPL Boxes SB184FF-208V-BL

SPL Boxes' SB184FF-208V-BL custom-fit enclosure installs under the rear seat of 2007-2018 Chevy Silverado and GMC Sierra Crew Cab trucks. This forward-firing box holds two 8" subwoofers of your choice, and its rugged MDF construction and bedliner finish will stand up to the stresses of the truck environment. The enclosure's internal volume is 1.6 feet with a maximum mounting depth of 11".
Note: this enclosure only fits Crew Cab trucks; it will not fit Extended Cab trucks.
Product highlights:
- vehicle-specific forward-firing ported subwoofer enclosure
- holds two 8" subwoofers (not included)
- installs under rear seat of 2007-2018 Chevy Silverado and GMC Sierra Crew Cab trucks
- MDF construction with bedliner finish
- internal volume: 1.6 cubic feet
- subwoofer mounting depth: 11"
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # SB184FF-208V-BL
What's in the box:
- One vehicle specific ported enclosure for two 8" subwoofers with spring-post terminals
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More details on the SPL Boxes SB184FF-208V-BL

Features & specs
General | ||
---|---|---|
Box Type | Ported | |
Number of Boxes | 1 | |
Number of Speakers Per Box | 2 | |
Speaker Size | 8 | |
Cutout Diameter or Length (inches) | 7 1/2 | |
Maximum Speaker Depth (inches) | 11 | |
Box Volume (cubic feet) | 1.6 | |
Tuning Frequency | 37 Hz | |
Height (inches) | 8-7/8 | |
Width (inches) | 49-1/8 | |
Depth (inches) | 13-1/4 | |
Second Depth (inches) | 13-1/4 | |
Wood Thickness (inches) | 5/8 | |
Speaker Wire Connectors | Spring posts | |
Box Color | Black | |
Box Finish | Bedliner | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year |
Product Research
Features
Vehicle Compatibility: This custom-fit ported enclosure is designed specifically to fit select 2007-2019 Chevrolet Silverado and GMC Sierra Crew Cab pickup trucks. Please enter your vehicle information to confirm fit.
Mounting Location: The enclosure mounts under the rear bench seat without taking up interior space.
Enclosure: The enclosure is made from durable MDF (Medium Density Fiberboard) that resists flexing and damps resonance. It's covered with a bedliner type material.
Terminals: The wire terminals are spring-posts (two pair) that accept pin connectors or bare wire up to 10-gauge. Inside the enclosure there are 0.205" male quick-slides (will accept 0.205" female quick slides) for both the positive and negative terminals. The wire can also be attached using the nuts holding the quick-slides in place.
Note: Speaker wire is needed to connect the terminals to the subwoofers.
Dual 8" Subwoofers: The enclosure holds two 8" subwoofers. The subwoofers share the same 1.6 ft³ internal chamber. Once mounted the woofers face the front of the truck.
Mounting: No mounting hardware or speaker wire is included with the enclosure.
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Great products and help from crew for proper equipment for my truck!!:)
Jeff from Morris, IL