Expert Service 1-877-289-7664 [Hours]

14th Anniversary Sale--More Products Added

12DSPF Dual 12-inch Sub Box

Dual 12" Sealed Subwoofer Enclosure

Discontinued
|

We apologize

This item has been discontinued

Get FAST answers from customers ASK a Question See questions answers

General Features:
  • 12" Dual Sealed Subwoofer Enclosure
  • Durable MDF enclosure for car subwoofers
  • Covered in a dark gray carpet
  • Pre-lined with Poly-Fil
  • Two sets of gold-plated speakers terminals
  • Banana-clip ready
  • Subwoofer mounting depth: 12-1/2"
  • Subwoofer cutout diameter: 11"
  • Box volume: 1.13 cubic feet (per chamber)
  • Total box volume: 2.26 cubic feet
  • Dimensions: 14"D x 28-1/4"W x 14"H
  • Might not fit all 12" subwoofers

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.
Sealed
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"
Maximum Speaker Depth
Your subwoofer or speaker must not exceed this dimension in order to properly mount in this enclosure.
12-1/2"
Total Box Volume
The internal volume measurement in cubic feet before subwoofer magnet displacement.
1.13 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.
2.26 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.
28-1/4"
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"
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.

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

Port Details

Tuning Frequency

Promotions

Promotions
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
93%
4 Star
0%
3 Star
7%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.9
Value
4.8
Features
4.7
Design
4.5
Usability
4.8

Kumar

San Diego, CA

Overall
Durability
Value
Features
Design
Usability

Very Lavish Subwoofer Housing

December 22, 2011

Excellent quality for the price. Perfect compact rectangular prism that produces distinct clear slams. Strong and sturdy, exactly what your looking for.

2 of 2 found this helpful

Help our customers find the most helpful reviews

Jake

Lafayette, LA

Overall
Durability
Value
Features
Design
Usability

Awesome Deal!

December 19, 2011

No need of a huge review here. Very sturdy, carpeting is great, leaves me with alot of space in my trunk. It holds 2 kicker CVR's that are 1600 watts max. Wont be dissapointed if you buy this! I've had it for 6 months and not a single problem!

2 of 2 found this helpful

Help our customers find the most helpful reviews

Michael

North Las Vegas, NV

Overall
Durability
Value
Features
Design
Usability

Great box!

December 6, 2011

I received this box with a bass combo deal, and I wasn't expecting the best quality. But when I received it I was pleasantly surprised. It is made of 3/4 inch MDF which makes it solid and heavy and very sturdy. Its sealed nicely and I have had no air leaks whatsoever, my only complaint is the use of cheap binding posts. Prefab boxes can work just fine, you just have to pay close attention to the air requirements of your sub and that of the box.

2 of 2 found this helpful

Help our customers find the most helpful reviews

Joker

Shelby Township, MI

Overall
Durability
Value
Features
Design
Usability

Awesome box for the $$$

October 4, 2013

Super inexpensive, Solid construction, Subs went in without a problem.

0 of 0 found this helpful

Help our customers find the most helpful reviews

calhoonism

Polkton,NC

Overall
Durability
Value
Features
Design
Usability

Solid As A Rock

May 7, 2013

Box was bought for the Pioneer 3000 watt 12" Subs and its a Perfect Match for them plus,it saves trunk space. Subs Mounting Holes are nice cut. However,I did add a extra lining of polyfil but,it was nothing to it. "GOOD BOX" For Subs that requires small enclosures!

0 of 0 found this helpful

Help our customers find the most helpful reviews

Darien

Eugene, OR

Overall
Durability
Value
Features
Design
Usability

Great Box for a Great Price.

February 17, 2013

Put my 2 Rockford P2D2 12's in here along with my Hifonics 1000 RMS amp. These things slam in my Regal. Recommendation to people with older cars and higher wattage systems, dynomat your trunk, and better yet the rest of your car. You will enjoy the quality of your sound so much more. If you have the money I say it's well worth it. Also make sure your license plates are secure on your car, no one likes trunk rattle. Overall I give this Sub Box 4.9 stars. The only thing I would suggest is maybe a second layer of polyfil, it's pretty thin with just one layer. Wasn't a big deal, I went and picked up a bag of polyfil for around $5 and lined it myself.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Fullthrotl1

Rice,MN

Overall
Durability
Value
Features
Design
Usability

Great Box!

December 21, 2012

The price and quick shipping made this an excellent deal!

0 of 0 found this helpful

Help our customers find the most helpful reviews

steven

daleville, AL

Overall
Durability
Value
Features
Design
Usability

It's a box

September 10, 2012

What can you say?, It's a box, like many other boxes, it is kind of cubed shaped, and well, like a box.. Seems to be put together well, hook ups were provided, NICE, as far as boxes go, it is a nice one for the money. Does just what it is supposed to do, converts trunk space to loud thumping.. I'm happy with it, neighbors not so much, lol..

0 of 0 found this helpful

Help our customers find the most helpful reviews

Zack

Indianapolis, IN

Overall
Durability
Value
Features
Design
Usability

Perfect

August 13, 2012

Works perfectly, holds subs in place and was a great buy!

0 of 0 found this helpful

Help our customers find the most helpful reviews

Craig Watts

Rockford,IL

Overall
Durability
Value
Features
Design
Usability

'Heavey Hitter'

August 5, 2012

Well built, looks nice, sounds great. This sub box surpassed my exspectations for the money. Another satisfied customer.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Jose

Atlanta, GA

Overall
Durability
Value
Features
Design
Usability

Pretty Box

August 1, 2012

A bit on the big side but it does the job and looks good doing it.

0 of 0 found this helpful

Help our customers find the most helpful reviews

SAM

TIFTON, GA

Overall
Durability
Value
Features
Design
Usability

Impressed

June 19, 2012

I have had many complements from friends seeing this box in action and it even hits harder than some ported boxes. My friends own with the same subs I guess the filling inside really makes the difference but the only down side is that the box is rather small in person but that gives u more trunk space. Overall the box does its job just fine.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Matt

Cary, NC

Overall
Durability
Value
Features
Design
Usability

Nice box, no screws

May 14, 2012

Box is fantastic. Comes with padding, perfectly sized. My dual 12 inchers sound fantastic. Words of warning: Does not come with screws or internal wiring. That's up to you.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Bass boy

Knoxville, TN

Overall
Durability
Value
Features
Design
Usability

This I very well built

May 4, 2012

Bought this box in with the 2 keenwood bundle with the amp kit havent tried the amp out yet but I have installed the subs in the box an only on 70rms from my Sony stereo they hit real real good so I do recommend this product to everyone who likes really clean deep bass Pros--none just that they have amazing bass an sound really good in the box. Cons--none

0 of 0 found this helpful

Help our customers find the most helpful reviews

Mack

Eufaula, AL

Overall
Durability
Value
Features
Design
Usability

Gets the job done!

January 3, 2012

This in not necessarily a big box but it makes speakers hit hard!! Great box!

0 of 0 found this helpful

Help our customers find the most helpful reviews

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

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

Product Summary

Manufacturer

Model Number

12DSPF

Weight

29.10lbs

Internal SKU

12dspf

Internal Product ID

34504

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: 12DSPF Dual 12-inch Sub Box