About the SPL Boxes SB184-212BL

SPL Boxes' SB184-212BL custom-fit enclosure installs under the rear seat of 2014-up Chevrolet and GMC Crew Cab trucks. This downward-firing box holds two 12" 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 0.8 feet per chamber with a maximum mounting depth of 7".
Note: this enclosure only fits Crew Cab trucks; it will not fit Double Cab trucks.
Product highlights:
- vehicle-specific downward-firing sealed subwoofer enclosure
- holds two 12" subwoofers (not included)
- installs under rear seat of 2014-up Chevrolet and GMC Crew Cab trucks
- MDF construction with bedliner finish
- internal volume: 0.8 cubic feet per chamber
- subwoofer mounting depth: 6"
- dimensions: 52.75"W x 9.625"H1 x 5.125"H2 x 15"D
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # SB184-212BL
What's in the box:
- One vehicle specific sealed enclosure for two 12" subwoofers with spring-post terminals
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More details on the SPL Boxes SB184-212BL

Features & specs
General | ||
---|---|---|
Box Type | Sealed | |
Number of Boxes | 1 | |
Number of Speakers Per Box | 2 | |
Speaker Size | 12 | |
Cutout Diameter or Length (inches) | 11 3/16 | |
Maximum Speaker Depth (inches) | 6 | |
Box Volume (cubic feet) | 1.6 | |
Tuning Frequency | --- | |
Height (inches) | 9-5/8 | |
Width (inches) | 52-3/4 | |
Depth (inches) | 15-1/2 | |
Second Depth (inches) | 15-1/2 | |
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 sealed enclosure is designed specifically to fit select 2014 and later 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 12" Subwoofers: The enclosure holds two 12" subwoofers in isolated 0.8 ft³ chambers. Once mounted the woofers are down firing.
Mounting: No mounting hardware or speaker wire is included with the enclosure.
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