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Belva BBX212BK

Dual 12" Ported Enclosure Custom Black Baffle

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List price $129.99

$99.99

with warranty

You Save: $30.00 (23.08%)

Arrives by Friday, Sept. 5 to zip 98109

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Bundled Savings with this Product

Save 20% on a Trunk Sound Deadening Kit!

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Belva BBX212BK

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Maxxlink VSD-TK

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Maxxlink VSD-TK

• Eliminates Road Noise
• Reduces Rattles
• Heat Insulation
• Five 18" x 32" Sections
• Butyl-Based Material

50% Off Speaker Wire with Purchase

Get 50% Off NVX 8 Gauge Speaker Wire when you purchase a Belva BBX Subwoofer Enclosure. Simply Click the "Add Both to Cart" button to the right.

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Belva BBX212BK

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NVX XWS0820

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8-Gauge Speaker Wire Cable • 20 Ft. Spool • Ideal for More Than 100 Watts • Flexible Multi-Strand Construction • Silver-Tinned 100% Virgin Copper

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Combined Total Price

$155.98

You Save $14.00

 

General Features:

  • 12" Dual Ported Subwoofer Enclosure
  • Black satin finish front face board
  • Covered in black carpet
  • Durable 3/4" Medium Density Fiberboard (MDF) construction
  • Subwoofer mounting depth: 14 1/2"
  • Subwoofer cutout diameter: 11 1/4"
  • Box volume: 1.85 cubic feet (per chamber)
  • Total box volume: 3.7 cubic feet
  • Dimensions: 16"D x 35"W x 16.25"H
  • Also available in Blue and Red
  • Authorized Internet Dealer
  • 30-Day Return Policy

Port Specifications:

  • Rectangular Slot Port
  • Number of ports: 2
  • Port volume: 0.18 cubic feet (per port)
  • Total port volume: 0.36 cubic feet
  • Estimated port tuned frequency (fb): 35 Hz
  • Port dimensions: 1.5"Width 12.5"Depth

Speaker Box / Enclosure Specifications

Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
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.
Ported Bandpass
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.
11.25"
Maximum Speaker Depth
Your subwoofer or speaker must not exceed this dimension in order to properly mount in this enclosure.
14.5"
Total Box Volume
The internal volume measurement in cubic feet before subwoofer magnet displacement.
3.7 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.
1.85 cubic feet
Height
The height of the item, measured from top to bottom, in inches.
16.25"
Width
The width of the item from left to right (side-to-side) measured in inches.
35"
Depth
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
16"
Wood Thickness
The thickness of the wood the enclosure is made of, measured in inches.
3/4"
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.

Spring 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
Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.

Port Details

Number of Ports
The number of ports the enclosure has.
2
Tuning Frequency
35 Hz
Port Diameter
The outside diameter of the port. Check the product's owner's manual for the recommended port diameter for your sub.
12.5"
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.
1.5"

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
17%
4 Star
50%
3 Star
0%
2 Star
17%
1 Star
17%

Average Attribution Rating

Durability
3.8
Value
3.7
Features
3.8
Design
4.2
Usability
3.5

Lenole

Tuba City, AZ

Overall
Durability
Value
Features
Design
Usability

awsome value an great look

June 10, 2014

I just got one Belva BB212BK BOX ,pretty big for two 12" NVX the sound was smooth and had just the right amount of bass

0 of 0 found this helpful

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Theo

St Mary's, PA

Overall
Durability
Value
Features
Design
Usability

Subs didn't fit

April 24, 2014

The subs I got didn't fit into the sub holes so I had to take the shiny front plate off...I wouldn't recommend this box at all...

0 of 0 found this helpful

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Kave

St.Louis

Overall
Durability
Value
Features
Design
Usability

Great price

March 25, 2014

Speaker box is very nice the only problem I had was the face plate was to small for my speakers I had to cut a bigger hole so they can fit.So watch out for the size,dimension on this product. I would recommend this product

0 of 0 found this helpful

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JP

GA

Overall
Durability
Value
Features
Design
Usability

sounds great

October 10, 2013

Box sounds great. Only problem is the trim ring on the Hifonics subs wouldn't fit without a little grinding.

0 of 0 found this helpful

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Clayton

Redding, CA

Overall
Durability
Value
Features
Design
Usability

Solid Box

September 27, 2013

this box is pretty solid. i have had it for around 2 months now and its workikng great with my two alpine type s. it feels well bilt and looks nice with the shiny front part.

0 of 0 found this helpful

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HaMmY0069

Lansing, MI

Overall
Durability
Value
Features
Design
Usability

terrible box

September 27, 2013

i bought this box and i know pre fabs are always pretty shitty but this one is probably the worst box ive ever had. i have two dual 4 power acoustik mofos and a hifionics brutus 1700.1 powering them... I put them in this box and I blew the box apart within the first 5 days ( i was still breaking the subs in)... the box is shit... the terminals were terrible the port was weak, i had to screw the port back in place after the first few hours... the back of the box collapsed on me. idk just a terrible over all product. they need to put some damn screws in these pre fabs. that would help a little bit....

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

NVX XKIT42 - 4 Gauge Amp Kit

Pure Virgin Copper, 4 Gauge Amplifier Installation Kit

Your Price $89.99

Belva BAK42 - 4 Gauge Amp Kit

CCA 4 Gauge Wiring Kit with RCA & Speaker Wire

Your Price $29.99

8 Gauge - Stinger Amp Kit

Single amplifier 4000 Series complete installation kit.

Your Price $39.99

Belva BAK02 - 1/0 Gauge Amp Kit

CCA Wiring Kit with 2-Channel RCA & Speaker Cable

Your Price $59.99

NVX XKIT02 - True Spec 1/0 Gauge Amp Kit

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

Your Price $149.99

High-Performance Streetwires Speaker Wire

25 ft. of 12 Gauge speaker cable with twisted pair construction for improved power flow and fine-stranded copper windings.

Your Price $44.95

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 $109.95

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

40 ft. Bulk Pack of Sound Dampening Material

Your Price $119.99

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 $159.95

Banana Clip Terminals

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

Your Price $3.99

Insulated Female Quick Disconnect Connectors

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

Your Price $7.99

20 oz. Bag of Poly-Fil

Polyester fiber fiberfill adds better bass to your system.

Your Price $5.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles or can be used for your polyfil.

Your Price $6.99

Car Stereo and Speaker / Subwoofer Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

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Product Summary

Manufacturer

Model Number

BBX212BK

UPC

818060012365

Weight

58.00lbs

Internal SKU

bbx212bk

Internal Product ID

72853

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 BBX212BK