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SPL Boxes SB202-212-BL

Custom-fit dual 12" sealed subwoofer enclosure — fits 2002-up Dodge and Ram Quad Cab trucks

Item # 419202212B

Find what Fits your vehicle

Item # 419202212B

Low stock

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Since 1974

Years of experience making people happy.

Car-specific installation packages

Deep discounts on the essential accessories that help your new gear work with your car.

Free custom vehicle instructions

Installation help for your car, from our experts.

About the SPL Boxes SB202-212-BL

Bob Bihlmayer

SPL Boxes' SB202-212-BL custom-fit enclosure installs under the rear seat of 2002-up Dodge and Ram Quad Cab trucks. This upward-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 0.65 feet per chamber with a maximum mounting depth of 6".

Product highlights:

  • vehicle-specific upward-firing sealed subwoofer enclosure
  • holds two 12" subwoofers (not included)
  • installs under rear seat of 2002-up Dodge and Ram Quad Cab trucks
  • MDF construction with bedliner finish
  • internal volume: 0.65 cubic feet per chamber
  • subwoofer mounting depth: 6"
  • dimensions: 54.5"W x 13.5"H x 8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # SB202-212BL

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 SB202-212-BL

Pat M.

Product Research


Vehicle Compatibility: This custom-fit sealed enclosure is designed specifically to fit select 2002 and newer Dodge/Ram Quad Cab pickup trucks. (It does not fit the Mega Cab models.) 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, each having its own 0.65 ft³ chamber. Once mounted, the woofers fire upward.

Mounting: No mounting hardware or speaker wire is included with the enclosure.

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Customer Q&A

2 questions already asked

Are you able to still use the rear seats with the speakers facing up?
[ Calvin  Mar 03, 2023 ]
1 answer
Greetings Kevin, and thank you for your question. By design the SPL truck boxes are to fit under the rear seats without modification to the seat itself, and without any lose of seating.
[ Thomas  Mar 08, 2023 ]  Staff
Are you able to install an amp in the custom enclosure?
[ Bryan I Marroqu  Oct 18, 2022 ]
1 answer
Greetings Chapin, and thank you for your question. I'm going to have to say no, you cannot. The box is well sealed. Each side of the enclosure has enough room for just the subwoofer. Without dismantling the box, I cannot see a way to have an amplifier installed in that box.
[ Thomas  Oct 18, 2022 ]  Staff

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