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Sonic Sub Box: 1SL12-1.4 (GRAY CARPET)

Single 12" Sealed MDF Enclosure

Discontinued
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Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

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Ground Shaker SQXL 1 12-GRAY

OUR PRICE: $69.95

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Sonic Sub Box: 1SL12-1.4 (GRAY CARPET)

Single 12" Sealed MDF Enclosure

$39.99

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Sonic Sub Boxes are custom built to fit your application. Enclosures are made with only the highest quality materials, including 3/4” MDF, to ensure your subwoofer enclosures can handle the test of time and the thump of your new subs.

  • Single 12" Sealed MDF Enclosure
  • Holds one 12" subwoofer
  • 3/4 MDF (Medium Density Fiberboard) Construction
  • Durable GRAY carpeting
  • Gold Terminals
  • Internal Box Volume: 1.48 Cubic ft.
  • Dimensions: 17"D x 16"W x 14"H
  • 30 Day return policy

Product History:

Ground Shaker SQXL 1 12-GRAY thumbnail
(newest, current model)
Sonic Sub Boxes 1SL12-1.4-GRAY thumbnail
(previous model, replaced by Ground Shaker SQXL 1 12-GRAY)

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.
1
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.
11-1/8"
Maximum Speaker Depth
Your subwoofer or speaker must not exceed this dimension in order to properly mount in this enclosure.
16"
Total Box Volume
The internal volume measurement in cubic feet before subwoofer magnet displacement.
1.48 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.
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.
16"
Depth
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
17"
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.
1
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
Box Exterior Color
The color of the enclosure's exterior/outer finish.
Gray
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
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

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
Not warranted
Labor Warranty Duration
Not warranted
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
86%
4 Star
14%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.9
Value
5.0
Features
4.6
Design
4.7
Usability
5.0
DJ gambitron

Eugene, OR

Overall
Durability
Value
Features
Design
Usability
AWESOME VALUE!

February 17, 2010

I just bought 4 of these enclosures to hold Hifonics HFi 12D4 subs for my "SQ" DJ rig. I actually have the black carpeted version of these which are out of stock now, but they're the same exact model otherwise.

These are my 3rd set of sub boxes and are the absolute best! I've bought both a 12" oak veneered home box and a Goldwood 10" carpeted wedge elsewhere that were SUPPOSED to be 3/4", but were only that thick on the front baffle with all the other sides being flimsy 5/8" MDF.

These Sonic Sub boxes are TRULY 3/4" MDF all around and are a super value.

My ONLY complaints are that the terminal cups are on the sides and not the back where I wanted them, but that can be fixed easily, and that the terminal cups are bare wire/pin only.

I want 5 way binding posts so I can use banana plugs for faster set up & tear downs at gigs, but terminal cups are dirt cheap and I'm already planning on re-routing holes in the back anyways as well as on the top to mount recessed carry handles. For the price that I paid for these, those are MINOR complaints and these are designed for permanent installs in cars where "the back" is really "the bottom" and not DJ rigs anyways. That's why I took 1 point off on features.

I'm totally happy with both the products and with Sonic Electronix's speedy service sending me both my subs and these boxes with free shipping to boot. I can't wait to mount the subs now & break them in.

I'll shop here again in a minute if I ever need any more gear for the great service which is getting rare on the internet these days. If it ain't broke, don't fix it, and Sonic Electronix is on my trusted store list now.

4 of 5 found this helpful

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Fabio

Powell, WY

Overall
Durability
Value
Features
Design
Usability
!!!!!!!!! GOOD STUFF

August 11, 2008

i bought this box for my alpine type x 12 inch sub and its deffinetly holding together really well well built and nice my type x hits so hard in my regular cab chevy silverado thanks to this great box@!!!!

4 of 5 found this helpful

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DFL

Internet

Overall
Durability
Value
Features
Design
Usability
Superb Box

January 31, 2010

Excellent box for my 12" Kicker CVR. Hits hard, low, and loud in this box. Box comes sealed quite well from the factory.

3 of 4 found this helpful

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Manuel

Gardena, CA

Overall
Durability
Value
Features
Design
Usability
Great enclosure

November 8, 2009

This sonic enclosure is great for the price. Perfect for my 12" Fi Q subwoofer. It's very well constructed and uses 3/4 mdf. I'd recommend it to anyone looking for the a good sealed enclosure of this size.

2 of 3 found this helpful

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bdkent18

rochester wa

Overall
Durability
Value
Features
Design
Usability
excellent deal

April 21, 2009

This was my first time using a sealed enclosure, and I must say it sounded really good Definitely worth the price.

2 of 3 found this helpful

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myles

eunice, LA

Overall
Durability
Value
Features
Design
Usability
Great Quality!

July 9, 2008

At first I though it was going to be cheaply built and not sound good but man was I wrong .It really is built awesome and sounds better than I would have ever imagined.

2 of 3 found this helpful

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Nick

CA

Overall
Durability
Value
Features
Design
Usability
Does what I need it to do

March 19, 2011

Need a box? Perfect. Don't expect much more from this. It is a true .75 material.

1 of 2 found this helpful

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Accessory Tools and Products

Accessories added

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8 Gauge - Stinger Amp Kit

Single amplifier 4000 Series complete installation kit.

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Belva BAK02 - 1/0 Gauge Amp Kit

CCA Wiring Kit with 2-Channel RCA & Speaker Cable

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NVX XKIT02 - True Spec 1/0 Gauge Amp Kit

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

Your Price $149.99

GS Audio BG-12

Chrome Bar Style Grille for 12" Subwoofers

Your Price $11.99

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 $37.85

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 $94.95

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

40 ft. Bulk Pack of Sound Dampening Material

Your Price $97.99

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 $159.99

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

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

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 $8.99

Car Stereo and Speaker / Subwoofer Installation Tool Kit

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

Your Price $18.99

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Product Summary

Manufacturer

Model Number

1SL12-1.4-GRAY

Weight

26.00lbs

Internal SKU

1sl1214-gray

Internal Product ID

8387

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: Sonic Sub Box: 1SL12-1.4 (GRAY CARPET)