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Sonic Sub Box: 1SA12 (Gray)

Single 12" Airport MDF Enclosure

Discontinued
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This item has been discontinued

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  • 12" Single Slot Ported Enclosure
  • Two 4" Ports
  • 3/4" MDF construction
  • Designed to reduce port noise
  • Gold binding post terminals
  • Durable gray carpet
  • Color: Gray
  • Also available in: Black
  • Box volume: 2.8 cubic feet
  • Dimensions: 17"D x 28-1/2"W x 13-1/2"H
  • 30 Day return policy

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.
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.
2.8 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.
13-1/2"
Width
The width of the item from left to right (side-to-side) measured in inches.
28-1/2"
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
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
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.
4"

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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
74%
4 Star
13%
3 Star
9%
2 Star
0%
1 Star
4%

Average Attribution Rating

Durability
4.4
Value
4.8
Features
4.4
Design
4.7
Usability
4.7
chris

tucson, AZ

Overall
Durability
Value
Features
Design
Usability
sonic sub box 1sa12

April 22, 2011

Bought this to put my new Pioneer 3500 watt sub in it and it was a match made in heaven kuz my Lincoln town car hits krazy hard. I'm pushing 3k and the box holds its own. Over all a great buy

2 of 2 found this helpful

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gahne

siloam springs, ar

Overall
Durability
Value
Features
Design
Usability
Awesome product!!!

July 17, 2012

This sub box enhances the sound quality of my speakers. Box is sturdy and made with quality products!

0 of 0 found this helpful

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jay

barberton, OH

Overall
Durability
Value
Features
Design
Usability
CRACKED AFTER THREE WEEKS !!!!!!!

June 24, 2012

This box sounded great untill i cracked the seam with american bass xlf so thats why i rated it with 1 star dont buy this box it you have a good driver such as dd,a/b xfl,fi,or any high end car audio...

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AKRONJAY

AKRON,OHIO

Overall
Durability
Value
Features
Design
Usability
SICK BOX

May 17, 2012

I tried to put an American Bass XFL in this box. I had to sand the hole to make it fit, and after I did... wow. This box makes that driver go crazy. Do yourself a favor and invert the ports on this box. It drops the bass down real low. Very well built. GREAT BOX THANKS AGAIN SONIC!!!!!!!!!!!

0 of 0 found this helpful

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A4Maniac

Edmonds, WA

Overall
Durability
Value
Features
Design
Usability
I will never go sealed again...

December 24, 2011

Wow. Bought a brand new 12" Kicker CVX and put it in a sealed box at 650 RMS. It was okay but not even close to what I was looking for. Returned it and bought this box and hollllllllllyyyy..... People complain about how it doesn't hit supper low notes but wow this thing slapps now!!! Best 45 dollars I've spent in a while. Highly recommended.

0 of 0 found this helpful

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chris

el paso, texas

Overall
Durability
Value
Features
Design
Usability
NIce box.. Don't use heavy subs though

April 24, 2011

I really liked this box a lot. It took a little time to figure out how to wedge it into my 2000 Mustang trunk but I got it to work... I dropped a 12" Fi BTL into it.... ugh.. the sub weighs more then the box weighs. The sub freaking pounds in this box. No port noise so that's nice. But I do have 1 problem... the sub pounded its way out of the box!!! Ha. I would recommend this box for a sub that don't weigh so much.

2 of 4 found this helpful

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Bryce

Aurora, NE

Overall
Durability
Value
Features
Design
Usability
Perfect Box

March 22, 2011

I have one of these in my car with a pioneer 3500 watt sub that just blew, so now I'm going to throw two of these into my trunk with two 3500 watt Pioneers powered by the 2000 watt v power mono amp by Alpine. I know that one of these in that box powered by that amp is as loud if not louder as some two sub setups, so I can't imagine what two of these is going to sound like. This is a must have box!

0 of 0 found this helpful

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sodistorted

South Lake Tahoe, CA

Overall
Durability
Value
Features
Design
Usability
Alright Box

February 28, 2011

I liked the price of the box, and it was alright, not bad but not great either. I didn't like the way the box couldn't hit low notes. Granted it is a prefab box but after reading the other reviews I expected more.

0 of 0 found this helpful

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anthony

Soledad,Ca

Overall
Durability
Value
Features
Design
Usability
Good.....

February 10, 2011

I just loaded this box whit my new Audioque HDC3 sub...and wow the bass is good and loud....this is a good box...

0 of 0 found this helpful

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Cim

South Lake Tahoe

Overall
Durability
Value
Features
Design
Usability
This box slaps!!!

August 29, 2010

Just dropped a DC Level 3 into this box and it is hitting hard!! The sub isnt even broken in yet and its making my ears ring. Great box for the price. If your lookin for a one sub box with great efficiency, buy IT!

0 of 0 found this helpful

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Miley

davenport, IA

Overall
Durability
Value
Features
Design
Usability
GREAT box

July 21, 2010

this box is great, i think i wont ever get any other box for my hifonics olympic 2412, the box makes that one sub sound like i have multiple subs in my trunk, the only down fall is the trunk space i have after the box is in my trunk.

0 of 0 found this helpful

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mb2973

cincinnati, oh

Overall
Durability
Value
Features
Design
Usability
good buy

June 21, 2010

I bought this box for a hcca 12 sub. The box works great I had to modify it just a little to get it to fit but it was worth it. Great box especially for the price.

0 of 0 found this helpful

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RedCoug

Englewood, CO

Overall
Durability
Value
Features
Design
Usability
20x Louder

May 3, 2010

This box is Amazing it gives your sub the deep bassy tones and the high hard hits. BEST BOX BY I'VE EVER OWNED

0 of 0 found this helpful

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dirty

cut off , louisiana

Overall
Durability
Value
Features
Design
Usability
BEST BUY

July 23, 2009

i also had 3 pioneer subs 1000rms 3000peak in a sealed box on a 2600 watt hifonics amp and with this box i now have 1 sub same amp and it hits much harder than all 3 in a sealed box .... no port noise very clean sound

0 of 0 found this helpful

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lucky

wenatchee, wa

Overall
Durability
Value
Features
Design
Usability
hit hard

July 20, 2009

i have a pioneer 3000watt sub in this box and it hits hard as all get out

0 of 0 found this helpful

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Andrew

Richmond, VA

Overall
Durability
Value
Features
Design
Usability
BOOM BOOM!!!

March 31, 2009

THIS BOX HITS SO INCREDIBLY LOUD. I HAVE A ORION HCCA-12 INCH WOOFER AND I'M PUSHING 2000+ WATTS AND THE BOX IS STILL IN GOOD SHAPE, THIS BOX CAN TAKE SERIOUS POWER, AND YOU CAN BARELY HEAR ANY PORT NOISE.

0 of 0 found this helpful

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Matt

Centerort, NY

Overall
Durability
Value
Features
Design
Usability
Great box

January 4, 2009

This Box is a great box. It really hits the low bass notes with my Orion Hcca 12.2. The only thing is after about 4 months of use with my JL 1000/1v2 and my hcca the walls started coming apart, only because my setup is extremely powerful and has 4 inches of xmax.....that's a lot of air being moved....nothing a few screws and caulking cant fix. but other than that...great box for an amazing price

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Zachary

Victoria, TX

Overall
Durability
Value
Features
Design
Usability
WOW

July 3, 2008

OMG, this box roars...You can feel the reverb just by singing in to it w/ no woofer inside. Once you DO drop the woofer down into it, this box just opens up and yells...The bassiest box ever!!!

0 of 0 found this helpful

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DeMarcus

APO, AE

Overall
Durability
Value
Features
Design
Usability
Perfect

April 23, 2008

I got this box and installed my system 8.4.08 and it is amazing, I put an Audiobahn aw1200q in it and it pound hard. I strongly suggest this box if its specifications fits your sub.

0 of 0 found this helpful

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David

Hammond, LA

Overall
Durability
Value
Features
Design
Usability
Large, efficient enclosure

September 28, 2007

This box clearly struck me as well-built from the get-go. The two ports are exactly 4" in diameter in between the flanges. The only major drawback I've found is that the ports are simply not quite long enough for this enclosure to tune to below about 50hz for most subs. I've loaded mine with the MA audio MA121XQ 12" sub and the tuning frequency is exactly 56 hertz (with the sub's large rubber cosmetic cup removed from the basket to increase air space). Even so, I still get 2 to 4db more spl (equivalent of about twice the "power") at a thunderous 34hz than this same sub in a 1.25 cubit ft sealed enclosure. If efficiency is your goal and you dont plan on needing enough space for an additional sub, this will give you about as high efficiency as you can get from a ported enclosure. BTW, the ports are very well flared and there is almost NO port noise!

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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 $69.99

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

Scosche WGB12

12" Protective Waffle Style Subwoofer Grille

Your Price $4.99

GS Audio BG-12

Chrome Bar Style Grille for 12" Subwoofers

Your Price $13.99

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 $1.99

Insulated Female Quick Disconnect Connectors

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

Your Price $7.99

Spring Post Terminal Cup

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

Your Price $3.99

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

1SA12-GRAY

Weight

35.00lbs

Internal SKU

1sa12-gray

Internal Product ID

7521

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: 1SA12 (Gray)