Belva BBX210BK Dual 10" Ported Sub Box w/ Custom Black Baffle
Coupon Exclusion
Coupon and offer exclusions:

Sitewide coupons and discounts are not applicable to certain brands, products or combos. Offers exclude the following brands*: JL Audio®, Wet Sounds®, Focal®, Kicker® and Rockford Fosgate® Offers exclude the following products*: MRV-M500, ILX-W650, ILX-W650_SXV300v1, BLB212LED, BPKG10T, XPE2700, XPE4700, DMCPA79BT, GT7-6, GT7-96, GT7-6C, GX600C-z, KW-V85BT, DDX9705S, DDX775BH, JAD900.5, JAD800.4, QBUS8v2, NekTek2, AVH-200EX, DB1242DVC.

*Contact our toll-free expert line for JL Audio®, Wet Sounds®, Focal® and Rockford Fosgate® as we guarantee we will beat any other Authorized Retailer.

Code: 19YEARS is for 10% off your purchase of select items. $10 Sonic Bucks will be applied and available 30 Days from original purchase and must be used on an order of $100 or more.

Coupons are not valid for business/wholesale sales, installation services, shipping, delivery or gift cards. Sonic Electronix reserves the right to limit quantities per account, product or offer. Offers may be valid only in the U.S. Coupons cannot be combined with other coupons, select promo bundles, combos, savings certificates, special offer price matches, or combined with other discounts. X

Belva BBX210BK (BLACK)

1.42 Total Cu Ft - Dual 10" 3/4" MDF Ported Subwoofer Box Enclosure with Custom Black Baffle

In Stock
|

List price $119.99

You Save: $60.00 (50.00%)

Thanks , You Pay:

$59.99

with warranty

+ FREE Shipping in US 48

Order within 19 hrs 43 mins to ship 8/22

Arrives by Saturday, Aug. 24 to zip 23465

Add an Extended Warranty

SquareTrade Product Warranty
60-Day Money-Back

Hassle Free Returns

365-Day Coverage

Warranty assistance for a year

Bundles with this Product

=

50% Off Speaker Wire with Enclosure Purchase

Get 50% Off Belva 12 Gauge Speaker Wire when you purchase a Belva Subwoofer Enclosure. Simply Click the "Add Both to Cart" button to the right. This offer cannot be combined with any other coupons or offers.

7.50

72850

401

Belva BBX210BK (BLACK)

$59.99

+

50% OFF

Belva BBSW127

$14.99

Special Price $7.49 ($14.99 if purchased separately)

Belva BBSW127

• 7 Meters
• 12 Gauge Speaker Wire
• High Strand Count for Maximum Flexibility
• 23 Foot Length

(Offer 1 of 1)

Combined Total Price

$67.48

You Save $7.50

Belva Store
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

General Features:

  • 10" Dual Ported Subwoofer Enclosure
  • Black high gloss front face board
  • Covered in black carpet
  • Durable 3/4" Medium Density Fiberboard (MDF) construction
  • Subwoofer mounting depth: 10"
  • Subwoofer cutout diameter: 9.5"
  • Mounting Ring Width: .75"
  • Box volume: 0.71 cubic feet (per chamber)
  • Total box volume: 1.42 cubic feet
  • Dimensions: 14"D x 30.5"L x 14"H
  • Also available in Blue and Red
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty

Port Specifications:

  • Rectangular Slot Port
  • Number of ports: 2
  • Estimated port tuned frequency (fb): 40 Hz
  • Port dimensions: 11.675"Length 11.5"Depth

Speaker Box / Enclosure Specifications

Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
10"
Subwoofer Cutout Shape
This is the shape of the enclosures cutout hole and defines the style of subwoofer that can be installed.
Round / Circle
Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.
Vented / Ported
Number of Subs/Speakers
This value represents the number of speakers or subwoofers that the enclosure accommodates.
2
Box Style/Shape
The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.
Square/Rectangle
Cutout Diameter or Length
The actual diameter of the hole in the subwoofer box. Length is the measured length per side of a square subwoofer or speaker opening.
9.5"
Maximum Speaker Depth
Your subwoofer or speaker must not exceed this dimension in order to properly mount in this enclosure.
10"
Total Box Volume
The internal volume measurement in cubic feet before subwoofer magnet displacement.
1.42 cubic feet
Box Volume (Each Chamber)
This is the total air space inside each chamber of the empty subwoofer enclosure. By matching this value with the recommended air space of the subwoofer, you will be able to know if the subwoofer will match this box.
0.71 cubic feet
Height
The height of the item, measured from top to bottom, in inches.
14"
Width
The width of the item from left to right (side-to-side) measured in inches.
30.5"
Depth
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
14"
Number of Terminals
The number of terminals the enclosure has. Each terminal represents 1 positive and 1 negative.
2
Terminal Type
Spring clip terminals work best with bare wire connections with small-gauge speaker wire, or pin-type connectors.

Binding post terminals are a sturdier, more versatile type of speaker terminal. Because binding post terminals are are threaded, you can tighten them down against the wire or connector for a tight, clean connection. The most popular style of binding post terminals is known as a "5-way binding post". This type can accept bare wire, or any of the common speaker wire connectors. Binding posts with the option to be used with banana clips are even more versatile

Spring posts are a hybrid of the two. Instead of using a thread and "screwing" them tight, they use a spring to allow the wire to fit and tighten against the terminal.

Binding posts (banana clip ready)
Box Exterior Color
The color of the enclosure's exterior/outer finish.
Black
Box Finish
The material used on the outside of the box. Most boxes are carpeted to prevent exterior scratches; however vinyl is popular as it can often be color-matched to a near exact look of your leather factory interior.
Carpet
Tuning Frequency
40 Hz

Port Details

Number of Ports
The number of ports the enclosure has.
2
Tuning Frequency
40 Hz
Port Length
The length of the included port tubes. Many tubes are cardboard and may be cut to the length recommended by the sub's manufacturer. Check your product's owner's manual for the recommended port length for your sub.
11.675"

Warranty and Return Policy

Parts Warranty Duration
Not warranted
Labor Warranty Duration
Not warranted
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
4.9
Features
4.9
Design
4.9
Usability
5.0

Waterbury, CT

Overall
Durability
Value
Features
Design
Usability
Amazing Value!!!

July 24, 2014

This enclosure was totally worth every cent! Visually impressive-though it takes up a little more space than my old one, completely worth it. Pours out incredible clean bass that I can feel in my soul w/ dual 10" Kicker Comp-Rs'. Make the upgrade like I did! You won't regret it!

65 of 79 found this helpful

Was this review helpful to you?

East Haven, CT

Overall
Durability
Value
Features
Design
Usability
great subwoofer

March 6, 2015

This sub box makes my subwoofer s sound better than they should of had.

47 of 57 found this helpful

Was this review helpful to you?

Canistota, SD

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Awesome

August 17, 2019

BOX is amazing. Sound quality great. A must for everyone.

0 of 0 found this helpful

Was this review helpful to you?

Shawnee, OK

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Awesome buy!!!

June 4, 2019

Well put together overall I was very happy with this and will be buying my future products here

0 of 0 found this helpful

Was this review helpful to you?

Corryton, TN

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Belva BBX210BK (BLACK)

June 1, 2019

Very nice built box looks great would recommend to anyone who needs a box for a good price.

0 of 0 found this helpful

Was this review helpful to you?

kingman, AZ

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Ported Box

November 4, 2018

This box is just what i needed , made my subs come alive . Had another ported box but not enough air space . This box really made my subs hit so much better.

0 of 0 found this helpful

Was this review helpful to you?

Mesa, Arizona

Overall
Durability
Value
Features
Design
Usability
Really Need to Change the Specs

October 11, 2018

The box is 30.5x14x14 which equals 5978. Divide that by 1728 to get cubic ft. and you get 3.46cu’ft, after you estimate port displacement you would subtract roughly .6 to get your total cubic ft of the enclosures which is roughly 2.86cu’ft. If you wanna get the cubic feet per enclosure you divide that by 2 and get 1.43cu’ft. Seems to me like they found the total cubic feet of one chamber and accidentally divided it by 2 thinking it was the total volume of both chambers. Looks like a good box though and I plan on getting one as long as I’m right lol. If not .71cu’ft is wayy too small for any 10 haha.

0 of 0 found this helpful

Was this review helpful to you?

Belleville, MI

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
All that and more.

August 20, 2018

This box is a perfect fit not to big not to small. Toned to i think 30hz. The look is clean and well made. The price unbeatable. For anyone looking to add 10s this is a no brainer. Get one before everyone else does. 5*s all day.

0 of 0 found this helpful

Was this review helpful to you?

Nampa id

Overall
Durability
Value
Features
Design
Usability
Great product!!

April 10, 2018

Nice design great quality and excellent performance will buy again highly recommend it. and affordable price

0 of 0 found this helpful

Was this review helpful to you?

Eau Claire, WI

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
perfect box for the price

August 18, 2017

I bought this box especially for the NVX V-series 10" that i order earlier from Sonic Electronic. My old box was a small seal box and it didn't sound like i wanted too.. So i decide i should try out a ported box.... After looking around Ebay, my local pawn shop and crutchfield, i could not fine what i was looking for and the one i wanted was over price. Thanks to Sonic Electronic i found the right box and price for my sub..The bass are louder then my seal box i had before. Thank You.

0 of 0 found this helpful

Was this review helpful to you?

trenton, NJ

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Great

June 5, 2017

This item is everything I was looking for we'll build

0 of 0 found this helpful

Was this review helpful to you?

Maple Valley, WA

Overall
Durability
Value
Features
Design
Usability
Belva Sub Box

May 22, 2017

Good quality and durable product. Was very easy to set up and fits perfect in my car.

0 of 0 found this helpful

Was this review helpful to you?

Fort Wayne, IN

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Well worth the $$$

June 21, 2016

Holes are a little big but nice sound is produced by this box.

0 of 0 found this helpful

Was this review helpful to you?

Des Plaines, IL

Overall
Durability
Value
Features
Design
Usability
Does what it should

October 12, 2015

This sub-woofer box really does what it should. With a pair of good drivers you can get great deep bass sound out of it. The finish is pretty good as well with a lacquer finished face plate.

0 of 0 found this helpful

Was this review helpful to you?

Accessory Tools and Products

Accessories added

NVX XKIT42 - 4 Gauge Amp Kit

Pure Virgin Copper, 4 Gauge Amplifier Installation Kit

Your Price $79.99

Belva BAK42 - 4 Gauge Amp Kit

CCA 4 Gauge Wiring Kit with RCA & Speaker Wire

Your Price $25.99

8 Gauge - Stinger Amp Kit

Single amplifier 4000 Series complete installation kit.

Your Price $36.99

Belva BAK02 - 1/0 Gauge Amp Kit

CCA Wiring Kit with 2-Channel RCA & Speaker Cable

Your Price $49.99

NVX XKIT02 - True Spec 1/0 Gauge Amp Kit

Pure Virgin Copper, Full 1/0 Gauge Amp Kit with RCA

Your Price $139.99

Atrend 10MG

10" Protective Waffle Style Subwoofer Grille (1 Pair)

Your Price $6.95

Atrend 10G

Chrome Bar Style Grille for 10" Subwoofers (1Pair)

Your Price $25.99

NVX SDRLR1 Universal Roller Tool

Install your sound damping with the SDRLR1 tool

Your Price $7.99

20 ft. of Dynamat Xtreme Trunk Kit

Keep your trunk from rattling and improve bass quality by using a sound dampening trunk kit.

Your Price $99.99

NVX SDBP40 - 40 ft. (10% More Than Competition)

40 ft. Bulk Pack of Sound Dampening Material

Your Price $99.95

36 ft. of Dynamat Extreme Bulk Pack

Make your sound system sound perfect by reducing road noise with 9 sheets of sound dampening material.

Your Price $159.99

Banana Clip Terminals

These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.

Your Price $1.99

Insulated Female Quick Disconnect Connectors

100 pack of 12-10 Gauge yellow insulated quick disconnects.

Your Price $11.99

Product Summary

Manufacturer

Model Number

BBX210BK

Weight

50.00lbs

Internal SKU

bbx210bk

Internal Product ID

72850

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Belva BBX210BK (BLACK)

Item Added to Cart

Belva BBX210BK (BLACK)

1.42 Total Cu Ft - Dual 10" 3/4" MDF Ported Subwoofer Box Enclosure with Custom Black Baffle

$59.99

Keep Shopping

Get Added Peace of Mind with SquareTrade

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
$7.99
Add Warranty
3 years of protection

NVX XKIT42 - 4 Gauge Amp Kit

Pure Virgin Copper, 4 Gauge Amplifier Installation Kit

$79.99

Add
Atrend 10MG

10" Protective Waffle Style Subwoofer Grille (1 Pair)

$6.95

Add
NVX SDRLR1 Universal Roller Tool

Install your sound damping with the SDRLR1 tool

$7.99

Add

Don't see the accessory you're looking for?
View all available accessories for the Belva BBX210BK (BLACK).