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Belva BBX212BL (BLUE)

1.85 Total Cu Ft - Dual 12" 3/4" MDF Ported Subwoofer Box Enclosure with Custom Blue Baffle

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List price $129.99

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$99.99

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General Features:

  • 12" Dual Ported Subwoofer Enclosure
  • Blue high gloss 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 Black 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.
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.
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.
Blue
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

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

Average Attribution Rating

Durability
5.0
Value
5.0
Features
5.0
Design
5.0
Usability
5.0
Brad

Canada

Overall
Durability
Value
Features
Design
Usability
Great box

April 23, 2014

I love this sub box. It looks & sounds amazing I am so happy I got it . If you want a box that looks and sounds really good you should get this box . U will love it as much as I love mine !!!!

0 of 0 found this helpful

Help our customers find the most helpful reviews

Ermin

Saint Louis, MO

Overall
Durability
Value
Features
Design
Usability
Good box!

January 27, 2014

It handles my sub woofers pretty well! I'm surprised it is holding up so greatly! Highly recommend it to anyone!

0 of 0 found this helpful

Help our customers find the most helpful reviews

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Chrome Bar Style Grille for 12" Subwoofers (1Pair)

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Black Bar Style Grille for 12" Subwoofers (1Pair)

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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.

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NVX SDRLR1 Universal Roller Tool

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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

36 ft. of Dynamat Extreme Bulk Pack

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

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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.

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12 oz. Can of Adhesive Spray

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

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Car Stereo and Speaker / Subwoofer Installation Tool Kit

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

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Browse 1 question and 2 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
i chose this product because it very closley fit the specifications of the 12" NVX vsw124 that i am getting for christmas
Storm D on Dec 10, 2014
bought it because it matched the color of my truck, kept it because its wonderful. some ported boxes seem to suck with the high range, but this box has excellent range. recommend to anyone, great value.
Daniel S on Sep 10, 2014

Product Summary

Manufacturer

Model Number

BBX212BL

UPC

818060012372

Weight

58.00lbs

Internal SKU

bbx212bl

Internal Product ID

72854

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 BBX212BL (BLUE)