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  1. Home
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  3. MB Quart Car Audio & Electronics
  4. MB Quart Car Subwoofers
  5. MB Quart Custom-fit Subwoofer Boxes
  6. MB Quart All Custom-fit Subwoofer Boxes

All MB Quart Custom-fit Subwoofer Boxes

Find the ideal match for your vehicle with MB Quart's All Custom-fit Subwoofer Boxes.

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Vehicle-specific sub box with amp,
Product Fitment Type
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Number of Subwoofers
This value represents the number of subwoofers that the enclosure accommodates or that are included in the package or bundled kit.
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
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MB Quart MBQJL-302

Custom fit Loaded 12" Tailgate panel subwoofer enclosure for select 2018-up Jeep Wrangler JL vehicles

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MB Quart MBQJL-302

Custom fit Loaded 12" Tailgate panel subwoofer enclosure for select 2018-up Jeep Wrangler JL vehicles

• Ported enclosure with 1 12" MB Series Subwoofer
• Final Impedance: 2-ohm
• Dimensions: 10" L x 17" H x 35" W
• IPX5 certified

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• Ported enclosure with 1 12" MB Series Subwoofer
• Final Impedance: 2-ohm
• Dimensions: 10" L x 17" H x 35" W
• IPX5 certified

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Price: $699.99

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Essential add-ons
Five Piece Installer's Panel Removal Tool Kit

Helps with removing dash and trim panels during car stereo installation.

Five Piece Installer's Panel Removal Tool Kit

$18.99

$11.99

Add to cart
18 Butt Connectors, 2 Ring Terminals, and Zip Ties

Great for connecting your car stereo wires to the harness.

18 Butt Connectors, 2 Ring Terminals, and Zip Ties

$9.95

$9.95

Add to cart
Install Bay BS9HD

Heavy Duty Metal Mounting Backstrap

Install Bay BS9HD

$9.99

$1.49

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