Belva 1SL10-0.7

Single 10" Sealed 3/4" MDF Car Subwoofer Enclosure Box Lined with Polyfil

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• Single 10" Sealed MDF Enclosure
• High Quality 3/4" MDF Construction
• Gold Binding Post Terminals
• Durable Gray Carpeting
• Total Box Volume: 0.7 Cubic ft

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Belva Subwoofer Boxes with Polyfill and 3/4-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 3/4" 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.

Belva MDF 3/4-inch Thickness

Look, nobody buys a subwoofer and says, 'Aw man, I just want a teeny bit of thump.' Naw man, you want something that kicks you in the chest, but you need a box that's gonna put up with it. That's where Belva comes in. While other brands use less-than-optimal 1/2-inch MDF, we've got 3/4-inch MDF to make sure you get all the bass you can handle. Why risk a busted box? Belva's the obvious choice when it comes to giving your sub a good home and giving you the low end you're looking for.

Belva MDF 3/4-inch Thickness

  • Single 10" Sealed MDF Enclosure
  • High Quality 3/4" MDF Construction
  • Total Box Volume: 0.7 Cubic ft.
  • Gold Binding Post Terminals
  • Durable Gray Carpeting
  • Color: Gray
  • Also available in: Black
  • Dimensions: 13"D x 13-1/2"W x 11-1/4"H
  • 30 Day return policy

Specifications & Details

Box/Enclosure specifications
Subwoofer Size
Subwoofer Cutout Shape
Round / Circle
Box Type
Number of Subwoofers
Box Style/Shape
Cutout Diameter or Length
Maximum Speaker Depth
Total Box Volume
0.7 cubic feet
Wood Thickness
Number of Terminals
Terminal Type
Binding posts
Box Exterior Color
Box Finish
Warranty and Return Policy
Parts Warranty Duration
Not warranted
Labor Warranty Duration
Not warranted
Warranty Provider
Sonic Electronix

Item Details


Model Number:




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Customer Ratings & Reviews

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Customer Reviews

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Sonic Sub Box: 1SL10-0.7 (Gray)

The box was sturdy and well made. I put a JL W3 with the MTX XD600 driving the sub and I've had no problems with the box. The sub is about to shatter. Go MTX

By SQ on November 22, 2010


found this helpful.

Price is unreal...

Just from the cost would cost me more just to buy the raw MDF from H*** D**** than it cost me to but TWO of these boxes. The boxes are made very sturdily and my MTX 6000 woofers fit in the cutout like a glove. I bought a bag of polyfill also and was able to line both boxes quite well with some left to spare. SE's polyfill bag has ALOT of stuffing! Thanks, SE.

By Indio Latino on November 18, 2010


found this helpful.

Soild box for the money!

Very well built box. Doesn't feel cheap at all. Obviously not as soild as 3/4" MDF from Lowes, ect. , but awesome for what it is. Can't beat the price. Needed something quick and I'm very satisfied with my purchase.

By Jonathan on June 25, 2014


found this helpful.


I had one and I am listening music from it. GOOD BOX AND GOOD PRICE

By WWK on December 14, 2010


found this helpful.

This is a Nice Box

Got this as a fast temporary box till I made one but it sounded nice so I kept it

By christian on January 24, 2011


found this helpful.

good box for cheap

The box isnt bad. But i did fiberglass the inside to add strength. I'm happy with it

By kenny on September 25, 2011


found this helpful.

Great, flexible sub box!!!

I got two of these to replace a ported box i had that was falling apart...soo glad I got these. They were packed well upon arrival, and have sounded great under all kinds of weather conditions...with all kinds of genres(metal, rap, jazz).
I highly recommend this box. If you want tight, accurate but still big sound out of your 10 inch..get this. also..the cup terminal is def. decent so that was a nice surprise.

By Jonathan on January 28, 2009


found this helpful.

Great deal, needs sealing for best results.

This box is very sturdy and well built. My only recommendation is to recaulk the seams as it was very light on my box. Other than that I'm very satisfied with this sub box.

By Daniel on July 22, 2012


found this helpful.

sonic .7 box

Used with a MB Quart DWI-252 10" sub. Sounds great and is well built. The terminals are nice as well. This is a high quality box for a very low price.

By toodles on April 12, 2011


found this helpful.

its a box

This box works great for a Cerwin Vega 10" sub I have in my Lexus.

By brian on June 11, 2012


found this helpful.


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