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Sound Ordnance Bass Bunker

Sealed single 15" subwoofer enclosure (Model BB15-150S)

Outlet: Scratch & Dent

Item #: 777BB15150

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7 Reviews | 1 question - 2 answers

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Sound Ordnance's rugged Bass Bunker enclosures come built to last and ready to help your sub deliver real low-frequency firepower. These unloaded boxes feature high-grade, medium-density fiberboard construction, with sealed inner braces that help combat resonance by reducing vibrations. Rounded outside corners and recessed panels allow them to fit into more vehicles, while tough black carpeting defends against incoming nicks and scratches. Bass Bunkers make a great solution when building your own box is not an option.

The BB15-150S sealed enclosure holds one 15" subwoofer and offers an internal volume of 1.57 cubic feet. Just add the right sub, amp, and wiring, then mount the enclosure securely, and you're ready to hit the road with some real bass artillery in your arsenal.

Warning: This enclosure does not include mounting hardware. If you're buying a sub from us, please check "What's in the Box?" to see if screws are included. If not, you should have an assortment of heavy-duty wood screws on hand for the installation.

Product Highlights:

  • sealed hatchback style enclosure for one 15" subwoofer
  • 5/8" MDF (medium-density fiberboard) with black carpet covering
  • cutout size: 13-7/8"
  • internal volume: 1.57 cubic feet
  • dimensions: 17-1/16"W x 16-3/4"H x 15-3/16"D1 x 12"D2
  • warranty: 1 year
  • Our 60-day money-back guarantee

Why do I need an enclosure?

An enclosure is simply the box that houses your sub; sealed and ported enclosures are the most popular types. A sealed enclosure is usually smaller in size, sacrificing a little volume level to deliver more accurate bass. The ported enclosure features a vent which allows bass waves to escape from behind the mounted sub, augmenting the bass coming off the front of the sub. Ported boxes are louder, bigger, and a little less accurate. Every sub works best in the size and type of enclosure that's recommended by the manufacturer, so make sure you match your sub with the right box.

Sound Ordnance™ Bass Bunker Reviews

Average Customer Review:

7 Reviews

Solid box

Written by: Dave N from Eastmoriches, NY on July 19, 2015

Crutchfield Customer Review (What's this?)

Solid ready to go box. The supports really make it a solid box. Would definitely buy it again.

Pros: Solid ready to go box

Cons: None

Great enclosure

Written by: Allen cryz from Bossier city la on November 14, 2014

Crutchfield Customer Review (What's this?)

Great box i really looked around for a box of descent size for my small car which barely had space for the box it already had and this box gave me two times the space to setup my amps and capacitor

Pros: Small box , great bass

Cons: None

Bass Bunker

Written by: Brady from Deshler, NE on August 4, 2014

Crutchfield Customer Review (What's this?)

Very compact for one 15" sub. Excellent build quality.

Pros: Great size and build quality.

Cons: None

Bass Bunker

Written by: db from Jonesborough, TN on May 30, 2014

Crutchfield Customer Review (What's this?)

How this box withstands the vibrations the 15" puts out is awesome. Compact and looks good after install

Pros: Durable and compact


good but could have been better

Written by: Anonymous from USA on November 28, 2013

Crutchfield Customer Review (What's this?)

It was screwed/glued/stapled together well. But the air-tight sealing inside the the box was not. No sealant around the round plastic terminal housing. And there were 2 other spots I had to seal also. Not to mention (but I am) two more spots that were not sealed that I could not get to. Good job on the carpetting, but does make it a little difficult to mark where to drill for screw holes. Haven't listenned to it yet, but will update this review once I have. Installed in/on it is a S/O 15" with a S/O 2x175W amp. I just hope I got it air-tight enough.

Pros: solid, good carpetting.

Cons: could be sealed better, maybe use heavier gauge wire inside.

Great Space Saving Sub Box for 15" Sub

Written by: Mojo from WI on April 30, 2013

Crutchfield Customer Review (What's this?)

I purchased this sub box for the Polk Audio Semi Shallow 15" Sub from Crutchfield. This box was the exact recommended inside sq footage for a sealed enclosure, and I am very happy with the space it saves, considering it is a 15" Subwoofer enclosure.

Pros: Excellent build quality. Space saving 15" enclosure. Internal wiring ready for immediate sub hookup.

Cons: Nono

Good box but nothing to compare it to

Written by: Mike from Ohio on February 3, 2013

Crutchfield Customer Review (What's this?)

well built box. This replaced my old S/O 10" ported box. This box is fine if you like a sealed box, I prefer a ported box myself. Unfortunately a 15: ported box was not offered or available from Crutchfield. All in all, no complaints for what it is.

Pros: Well constructed and is rather aesthetic.

Cons: My Alpine type S screw holes barely had enough room to attach to the box.

Hands-on research

What's in the box?

  • Single hatchback-style enclosure for 15" subwoofer with spring-post terminals

Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.

Product Research


Materials: The Sound Ordnance BB15-150S Bass Bunker is an unloaded, hatchback-style sealed enclosure for one 15" subwoofer. It is constructed of 5/8" MDF (medium-density fiberboard), covered in black carpet.

Internal Box Volume: The enclosure has 1.57 cubic feet of airspace.

Terminals: The BB15-150S is equipped with a pair of spring-post speaker terminals mounted in the rear panel. The spring terminals will accept bare wire up to 10 gauge, pin connectors, and single banana plugs, but are spaced too far apart for dual banana plugs. Inside the enclosure the terminal has an attached 24" length of speaker wire for connecting the subwoofer.

Brackets: Brackets for securing the enclosure to your vehicle are recommended.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Product reviews from the Crutchfield Labs

Video: Sound Ordnance Bass Bunkers
by Zak Billmeier, Jo Greene

Sound Ordnance subwoofer enclosures, called Bass Bunkers, are available to house most standard-sized woofers. This Crutchfield video gives you an up-close look at these high-quality sub boxes.

What are the Labs?

Customer Q&A

Crutchfield asked  
Why did you buy this?

It fit my sub woofer and had the correct dimensions. No other sites have one similar to this. [ Tazman  Dec 27, 2015 ]

1 question already asked

14ga if memory serves. It is more than adequate for the 500w i run through it daily. [ Anthony  Dec 02, 2015 ]
I don't remember exactly, it was fairly small gauge. I replaced it and soldered the connection. Only took a few minutes and is much more secure. Hope this helps. [ KEVIN  Dec 01, 2015 ]