Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

1TRUCK12 - CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil

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• 5/8" MDF (Medium Density Fiberboard)
• Perfect for Tight Spaces (trucks/hatchbacks)
• Fits Most 12" Subwoofers
• 0.75 CuFt
• fully carpeted
• Fully Caulked and Sealed Tight

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Belva Subwoofer Boxes with Polyfill and 5/8-inch MDF

Built for Bass

You've got an awesome subwoofer there, pal. But where's it gonna go? You can't just throw that thing in the trunk and call it a day. Don't worry, Belva's got your back. With superior construction, great features and everything you need for bass, you'll be ready to pass up that entry-level box you've been eyeballing.

Belva Subwoofer Boxes are CARB Phase 2 Compliant

You get quality boxes with solid 5/8" MDF because nothing else will do the job right. You want to flex your windshield, not your box's innards. You get polyfill built into the box, making sure your subs perform perfectly. On top of that, you get a box that's CARB Phase 2 Compliant, meaning your box won't emit as much nasty formaldehyde as the competition. Better for your bass and better for you.

This angled 12" box is PERFECT for single cab trucks and hatchback vehicles looking to save some space. The box is fully carpeted and made with 5/8" MDF wood (Medium Density Fiberboard), not particle board.

  • High Quality 5/8" MDF Construction
  • Gold Binding Post Terminals
  • 0.75 CuFt
  • Color: Black
  • Dimensions: 18-1/4" W x 14-1/4" H x 8-1/2" BD x 5-1/2" TD
  • 30 Day return policy

Product history:

Belva 1TRUCK12 thumbnail
(newest, current model)
Belva 12ANTCM thumbnail
(previous model, replaced by Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure)

Specifications & Details

Box/Enclosure specifications
Subwoofer Size
Subwoofer Cutout Shape
Round / Circle
Box Type
Number of Subwoofers
Box Style/Shape
Truck Style, Slim with Angled Front
Cutout Diameter or Length
Maximum Speaker Depth
Total Box Volume
0.75 cubic feet
Box Volume (Each Chamber)
0.75 cubic feet
Enclosure Second Depth
Wood Thickness
Number of Terminals
Terminal Type
Binding posts
Box Exterior Color
Box Finish
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


Model Number:




Internal SKU:


Internal Product ID:


Customer Ratings & Reviews

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Customer Reviews

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Mounting Depth is NEEDED

One thing that NEEDS to be in the description is the MOUNTING DEPTH of the box. This is CRUCIAL for determining which speakers will actually fit in the box. Once I received the box, I estimated the mounting depth to be somewhere like 5.5" for the sub. So this does limit certain models of subwoofers, but the one I chose fit perfect. I also enjoyed that this box came with poly-fill. Sounds great with my Alpine SWE-12.

By RocketyMan on February 22, 2014


found this helpful.

Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

it is as discribed , well built and speaker fit well. it was a good price and had no defects.

By Clint on September 2, 2014


found this helpful.

Awesome Enclosure

Didn't expect a insulated enclosure...Everything fit prefect and the quality was far more than i thought i was gonna get. Gotta get another one when i add a new deck to my van.....Great speed in shipping too.

By DaMan on August 26, 2014


found this helpful.

Excellent Product!

This box is very well built, great size, and is completely air tight. I've never had a box that was cotton lined and let me tell you it makes a difference. Great product I would highly recomend!

By Colbey on February 9, 2014


found this helpful.

belva 12" subwoofer enclosure

excellent subwoofer enclosure for my 12" sub. The quality of the materials and the solid feel of the box exceeded my expectations

By jaz on December 19, 2014


found this helpful.

A Super super happy man!!!

I bought this Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure a few days ago. So I cant explain how much happy I'm listening my music with this box, I'm an immigrant from Colombia who like to listen music such as Salsa, Reggueton, Merengue a real Latin guy. The sound is something so crazy (Perfect Sound - Space) in my car, Now I'm able to move all the toys of my son in my 2010 Toyota Matrix. If you want to have a good space & sound this is the box for you. Don't be scary for the size of this box. ;) I'm a happy Colombian.

By Harol Gomez on September 22, 2014


found this helpful.

Nice Box

I purchased this box to put a Hifonics HFX12D4 in. The box is well made and falls within specs for the sub. The carpeting, cutout, poly fill and terminals are high quality. I added about 5 oz of polyfill to make the sub think the box is bigger. The box also has a small footprint and fits easily in the trunk of my Yukon. This combo is matches up well and is highly recommended. Plus, the pairing offers a great value if you want strong bass on a budget. Sonic did a great job with the shipping :)

By Ryan on February 10, 2014


found this helpful.

speakers box review

Great box. Good waight,shape and easy to install a speaker to. Looks great in black. Recommended for any impact car or truck. Sturdy box no vibration.

By thumper on November 17, 2014


found this helpful.

Good Product for the Price

Good construction but it really flexes from my Rockford P3 shallows so I had to reinforce it with resin and fiberglass

By john on March 11, 2015


found this helpful.

Works great.

I bought this speaker box for a mustang but I ended up with it in my extended cab f150. I raised the rear seat up 2 inches and put in a alpine sub. This box hits hard and it is sturdy. It also looks nice in my truck.

By Nard on April 20, 2015


found this helpful.


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