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Sonic Sub Box: 2SV12 (GRAY)

Dual 12" Vented MDF Enclosure

Discontinued
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This item has been discontinued

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  • Dual 12" Vented MDF Enclosure
  • Holds 2 Round 12" Subwoofers
  • Ported in the middle with 2 ports
  • Made with high-quality 3/4" MDF wood
  • Fully carpeted
  • Gold-plated terminal cups
  • Dimensions: 17"D x 32"W x 14"H
  • Volume: 2.8 qft
  • 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.
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.
11-1/8"
Total Box Volume
The internal volume measurement in cubic feet before subwoofer magnet displacement.
3.4 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.
32"
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

Number of Ports
The number of ports the enclosure has.
2
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
69%
4 Star
15%
3 Star
10%
2 Star
0%
1 Star
5%

Average Attribution Rating

Durability
4.2
Value
4.4
Features
4.4
Design
4.5
Usability
4.6
Russell

Royalton, MN

Overall
Durability
Value
Features
Design
Usability
Substandard Quality

February 24, 2012

I bought this enclosure and was disappointed. My 1500w system with two 12" subs kick so hard that the walls of the enclosure vibrate as if they are going to come out of its joints. It results in a loud vibration noise. Would not purchase again.

7 of 8 found this helpful

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team pb

illinois

Overall
Durability
Value
Features
Design
Usability
great cheap box

February 8, 2011

good box well made sounds good dont like the terminals but other then that nice box amazing how they ship there stuff well packed

4 of 4 found this helpful

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Josh

Ottawa, OH

Overall
Durability
Value
Features
Design
Usability
Fast shipping

January 31, 2012

Very fast shipping, makes your subs sound lots better than a sealed box. Only problem was the terminals, but i fixed that and wired it. Very nice product!

3 of 4 found this helpful

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subs man

Indianapolis, IN

Overall
Durability
Value
Features
Design
Usability
nice

June 2, 2010

box is ok. hits way lower and deeper than a sealed box. you can actually feel more air being pushed from the back of the car. could be thicker though.

2 of 2 found this helpful

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Tyrus

Lawrenceville, PA

Overall
Durability
Value
Features
Design
Usability
huge

April 5, 2013

This box I knew was going to be big. but I didn't think this big, it barely fit into my trunk but thankfully it did. I put polyfill on the walls inside and it is overall a great box, very sturdy strong walls unlike the previous comments, the box looks great and my two 12'' infinities sound beautiful in it thank you sonic.
pros: great looking great sturdy box
cons: its huge

1 of 1 found this helpful

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Jordan

West Chester, OH

Overall
Durability
Value
Features
Design
Usability
Terrible Quality Box!

December 22, 2012

The box wasn't even glued together on some parts...
The wood was some of the lowest quality wood, it compared to particle board.

Had to get a new box after 3 weeks of use because the walls vibrated so much and it sounded terrible.

You get what you pay for with this box.

1 of 1 found this helpful

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Anthony

Medford, MN

Overall
Durability
Value
Features
Design
Usability
not the best

May 24, 2012

This box plays the notes amazingly. From high to lows, it will slap you in the face and keep coming 'til you can't take it. But like the guy before me, the walls flex as if they are goin' to blow. I have 2 Kicker CVR's in this, and the first week was great. Then, all of a sudden, I heard a vibration. So I popped my trunk, and found a line of saw dust on my trunk floor behind the sub box. Looks like the back wall was literally blowing out and creating dust where the nails are. So, I had to screw a bunch to stop the rattle, but it still bounces, and isn't very sturdy like the other walls. Very flimsy. Not too happy. Would not purchase again.

2 of 3 found this helpful

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lungshaker

springfield, KY

Overall
Durability
Value
Features
Design
Usability
this box is awesome

March 7, 2012

I bought this box for a Kenwood system and am extremely impressed. It was not as big as you would think so it will fit in your trunk. For the price you can't beat it for a custom box. Well worth the price and then some if you want the best from a system go with this box or any profesionally ported box the only con is the terminals the plastic nuts make me nervouse and they would be easy to lose. SonicElectronix got you covered for sure if you don't know what your doing ask them for what you think you want it to sound like and they will get you squared away. A huge thanks goes out to SonicElectronix. They know how to put a system together that will be compatible for you.

1 of 1 found this helpful

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Chris

Champaign, Illinois

Overall
Durability
Value
Features
Design
Usability
Excellent Box for Pioneer Premier Champion Pro Series

March 17, 2012

I bought this box, and I was skeptical on how they would sound with my brand new 12" Pioneer Premier Champion Pro Series subs (TS-W3002D2), and let me tell you thing things slammmm! The lows are amazing and the highs are alright. I'd say if you're looking for that deep bass with these speakers, this is the box to use. The highs don't hit extremely loud, but you can still hear them pretty well. I was looking for deep bass anyways. Talk about severe trunk rattle. Spend the $80 on this box, it'll be worth it, especially with those subs.

1 of 2 found this helpful

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Kyle

Apple Valley, MN

Overall
Durability
Value
Features
Design
Usability
very pleased.

October 5, 2011

The only cons about this is the terminals are plastic and can become loose. This however has not effected the sound quility. This box is very heavy duty and sounds outstanding. It matches my interior and was impressed with the craftmanship. It smelled freshly crafted after opening the box!! love it

0 of 0 found this helpful

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mo

virginia beach, va

Overall
Durability
Value
Features
Design
Usability
good buy!

August 22, 2011

great box! with really good sound! very sturdy.. the only con i could think of is the wire post could be a lil better made kinda flimsy and break easly, but all in all very much worth the cost!!

1 of 2 found this helpful

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javier

belvidere, IL

Overall
Durability
Value
Features
Design
Usability
Good box

July 28, 2011

Awesome only thing that was bad was when i got it the box was slightly dented on ther corner and some of the letters on the box didnt have paint but overall great box.

1 of 2 found this helpful

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John

Virginia Beach, VA

Overall
Durability
Value
Features
Design
Usability
good buy

June 3, 2011

Looks good and is holding together

0 of 0 found this helpful

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Brian

Auburn, AL

Overall
Durability
Value
Features
Design
Usability
Perfect and most universal

January 21, 2011

Only box on here to fit a Nissan Frontier extended cab and actually pretty well built.

0 of 0 found this helpful

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alex

Meridianville, AL

Overall
Durability
Value
Features
Design
Usability
great box for people on a budget. If sounds great.

January 14, 2011

If u are on a budget, get ths box. it does the job perfect for me and fits in almost every car. 5 stars all the way.

0 of 0 found this helpful

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Daniel

Peoria, AZ

Overall
Durability
Value
Features
Design
Usability
sonic box

June 10, 2010

Great box, only thing is the carpet on it comes off after having it for a while other then that it gets the job done and sounds great.

0 of 0 found this helpful

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KS

Canada

Overall
Durability
Value
Features
Design
Usability
Not as advertised

January 23, 2010

The construction is ok, but it looks like they used a cheaper MDF than usual. Also, be advised that the box volume is not as advertised. Actual internal volume (per enclosure) is 1.3 cu-ft. Port dimensions are 12" * 25" * 1.5", and with the volume this works out to a tuning of about 36 - 37 Hz when the sub is installed. This is not optimal for my Type-R subs, but still works. I would have probably went with a larger enclosure if I knew ahead of time.

0 of 0 found this helpful

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Brian

Crozet, VA

Overall
Durability
Value
Features
Design
Usability
Heavy duty

February 2, 2009

This box is clearly not going to break. It weighs close to 50 lbs and is nice and sturdy. Only thing I'd recommend is stronger terminals installed on the sides, beyond that it's a nice product

0 of 0 found this helpful

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dustin

Dallas, GA

Overall
Durability
Value
Features
Design
Usability
excellent

September 16, 2008

this is perfect for hard hitting subs and can take some abuse

0 of 0 found this helpful

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Chase

Oswego, IL

Overall
Durability
Value
Features
Design
Usability
Excellentay

July 11, 2008

This is a great box simple and straight to the point. in stores this box is easily $100.00 more for the same quality. I highly recommend this ported subwoofer box for any sound system.It would be a great addition.

0 of 0 found this helpful

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Adam

APO, AE

Overall
Durability
Value
Features
Design
Usability
Sonic Sub Box

April 25, 2008

The box is great! The holes for the subs were'nt big enough for my 12's but sandpaper fixed that. Overall great quality box!!! Thanks Sonic!

0 of 0 found this helpful

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Daniel

tinley park, IL

Overall
Durability
Value
Features
Design
Usability
Good Box

April 25, 2008

Bought from here. Good box good quality build and good sound. Definitely worth the money. installed with 2 1208t audiobahns 1500 rms ea. 1800 watt rms audiobahn amp and HC600 powercell, all perfect condition at the best price around. GO SONIC ELECTRONIX

0 of 0 found this helpful

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Mackenzie

Ormond Beach, FL

Overall
Durability
Value
Features
Design
Usability

February 20, 2008

I have a 2008 Scion XB and went from 2 10" kicker comps to 2 12" Alpine Type-R's and this box was perfect, high quality for sound and perfect for holding subs. I would highly recommend this box for anyone looking for a great deal on a box. One thing to be weary of is when the box is shipped nothing is used to cover the holes or the port so shipping popcorn gets inside the box and ports, use a shop vac to get it all out and you're good to go. Shipping was also quite fast, ordered the product on a Friday, shipped late Monday, and received it that Friday. Next day I installed everything.

0 of 0 found this helpful

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Alexandre

Canada

Overall
Durability
Value
Features
Design
Usability
This box is amazing

February 5, 2008

I had this box with two m.a audio 300 w rms each pushed by a 300 watt rms monoblock txi5006 from hifonics and the sound was amazing it was realy loud. my girlfriend tell me she can heard me coming almost 5 min before i arrive, it maybe less but it tell something about the spl that this box can produce with little stuff.

0 of 0 found this helpful

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Trenton

Temple City, CA

Overall
Durability
Value
Features
Design
Usability

December 12, 2007

this is a very well built box. I've got 2 Hifonics HF12S4's in them and they sound really good now that they're broken in. I've put some dynamat on the MDF and some small polyfill in the corners. The dual slot vent design works really good.

It took approximately about 40 minutes to extract all of the packing peanuts from the box because Sonicelectronix practically filled the sub cavity and the vented slots with packing peanuts!

0 of 0 found this helpful

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Chris

Liberty, MO

Overall
Durability
Value
Features
Design
Usability
wow

November 16, 2007

when i got this box i pulled it out of the cardboard and i was shocked at how good it looked. right now i have 2 PW3-12H in this box and a BOSS BL3KD Class D MonoBlock Amp. and all i got to say.

0 of 0 found this helpful

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toua

Erie, CO

Overall
Durability
Value
Features
Design
Usability
great box for the price

July 25, 2007

i bought this box for my alpine type x because no other dual twelve box would fit in my integra, other then customs. so i bought it and it made my sub hit hard really hard so i do recommend this box for anyone. the only downfall is that the speaker terminal is on opposite side but if you run two amp then thats no problem..

0 of 0 found this helpful

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Jeremy

conshohocken, PA

Overall
Durability
Value
Features
Design
Usability
ported sub enclosure

July 24, 2007

awesome sound quality, sounds great for any kind of music, rap, rock, and everything else that you might listen to.

0 of 0 found this helpful

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anthony

Santa Rosa, CA

Overall
Durability
Value
Features
Design
Usability
this box is great

July 13, 2007

I have this 2 of these one with fosgate p2's and the other wither kicker comp cvr's and they both pound. This is easily the best box i have ever owned

0 of 0 found this helpful

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Ryan

Tucson, AZ

Overall
Durability
Value
Features
Design
Usability
This box makes my subs get soooo low!!

February 27, 2007

I bought this box for my new Kicker CVRs (which i purchased from here also). I never thought that the subwoofers would get this low, but ported boxes are amazing! I can't believe it is this cheap for a box that is perfectly made. I love this box and don't think there would be anything better for me. Best box i have ever owned, no doubt about it.

0 of 0 found this helpful

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JDKUG

Seale, AL

Overall
Durability
Value
Features
Design
Usability
More Than I Expected

December 31, 2012

I bought this for my son on his 16th birthday... He was greatly surprised it fit perfectly behind the seats of his SL 500. The workmanship on this box is great and I would purchase this again.

0 of 1 found this helpful

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bassbooster16

Camilla GA

Overall
Durability
Value
Features
Design
Usability
beginner box

September 2, 2012

im running 1200 true watts to 2 alpine type R's the power from my subs rattled the walls loose and made a terrible noise...if you are running 500-800 watts this would be an excellent box, but its not built strong enough to handle more power than that.

0 of 1 found this helpful

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Austin

Prattville, AL

Overall
Durability
Value
Features
Design
Usability
Disappointed

June 1, 2012

I played this box for about a week when all the sudden i herd a very loud vibration.I popped the trunk and tryed to figure out what was wrong. I ended up pushing down on the box and the vibration quit. The back part of the box had been blown out of place. I cant even play the speakers anymore very disappointed. I would not recomend this box to anyone.

0 of 1 found this helpful

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Dillan

Oakland, MN

Overall
Durability
Value
Features
Design
Usability
Loud!

April 7, 2012

This box hits hard and fits my 2 12" kenwood performance subs well. I'm running a 1800w kenwood 9105D amp (900rms @ 2 ohm) to the 2 subs (400rms each). Shakes the entire car, even with sound deadener that is literally on every inch of the trunk and most of the interior. Unfortunately, the 2 terminals are poorly designed for this box I think, I had trouble with them right away, the subs shook the nuts off of the bolt holding the wire almost immediately, so if you notice any problems w/ power, check there first. Otherwise this is a great buy.

0 of 1 found this helpful

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Nathan

Fort Campbell, KY

Overall
Durability
Value
Features
Design
Usability
Better than expected.

February 18, 2012

Put this box in my Durango and it is LOUD. I'm running 2 Boston Acoustics G112-4 on 400W RMS. Its like the box was made for those speakers. I expected the box to be nice for the price but it competes with some custom boxes Ive had in the past. If this box matches the specs for your subs, don't hesitate.

1 of 3 found this helpful

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Bill

Belleview, FL

Overall
Durability
Value
Features
Design
Usability
Solid

December 26, 2011

This box is very solid. The construction is great however the terminals are just okay. I had to repair one side before using them but it was an easy fix. Terminals work fine.

0 of 1 found this helpful

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JC

Phenix City, AL

Overall
Durability
Value
Features
Design
Usability
Good Box overall

August 10, 2011

I recommend this box. It is of good qaulity and craftsman ship. Only cons are the connectors on the box and it arrived at my door with a minor crack from shipping.

0 of 1 found this helpful

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Ryan

Cleveland, OH

Overall
Durability
Value
Features
Design
Usability
Great Product!

June 24, 2011

Great Product! Love it!

0 of 1 found this helpful

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Cody

Lancaster, PA

Overall
Durability
Value
Features
Design
Usability
Its good, but didnt last me to long sadly

March 22, 2012

When I got the box it was completely filled with packing peanuts, and it was quite a job getting them all out at first. I did see some spots where the wood glue was coming off and peeling also.

So far it has sounded fairly well. Just today the top wood has came loose. Either the wood glue couldn't hold up or something else. So the wood rattles at high volumes.

As alot of people have mentioned, they had problems with their terminal cups on them, being broken or something. Mine came perfectly fine, not broken and they work well.

I am using 12 gauge speaker wiring, and running 2 RE Audio 12d2 (no longer sold on sonic electronix for some reason). They are extremely loud and is the reason why i think my enclosure went so fast. I have had it less then a month.

All-in-all, its great for the price for what you get. I will soon be buying a replacement for this box with a custom enclosure with a bit more durability.

0 of 2 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

Atrend 12MG

12" Protective Waffle Style Subwoofer Grille (1 Pair)

Your Price $4.95

Atrend 12G

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

Your Price $19.95

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

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 $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 $159.99

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

Insulated Female Quick Disconnect Connectors

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

Your Price $7.99

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 $16.99

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Product Summary

Manufacturer

Model Number

2SV12-GRAY

Weight

46.00lbs

Internal SKU

2sv12-gray

Internal Product ID

7509

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: 2SV12 (GRAY)