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JL Audio CS112TG-TW3

Sealed PowerWedge™ truck-style enclosure with one 12" TW3 subwoofer

14 Reviews | 2 questions - 4 answers

Item # 136112TGW3

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825 Gardens Blvd

109 South Carlton

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Our take on the JL Audio CS112TG-TW3

The PowerWedge CS112TG-TW3 truck-style enclosure pumps out signature JL Audio bass from a small sealed box. Install it anywhere that you might have a little room, like behind a seat or in the trunk, add an amp, and enjoy the extra depth that good bass will add to your system.    

JL Audio Built In USA JL Audio quality in a thin package

The PowerWedge CS112TG-TW3 truck-style enclosure pumps out signature JL Audio bass from a small sealed box. Install it anywhere that you might have a little room, like behind a seat or in the trunk, add an amp, and enjoy the extra depth that good bass will add to your system.    

Immense bass

JL Audio used their extensive engineering know-how to build a super-thin TW3 subwoofer that offers big performance. This PowerWedge handles up to 400 watts RMS, housing one 12" TW3 subwoofer that pounds out impressive low end. The enclosure is matched to the sub for optimum output, and the airtight sealed design delivers powerful, accurate bass.

JL Audio PowerWedgeCS112TG-TW3 Single 12" 2 Ohm Sealed Truck Sub

JL Audio made this sub to go behind a truck seat and deliver big bass.

Solid MDF enclosure

JL Audio uses state-of-the-art automated woodworking equipment to fabricate the high-quality MDF enclosure, then finishes it with rugged automotive carpeting, nickel-plated push terminals, and solid internal wiring. The enclosure is inspected by hand at the manufacturing facility in Florida to ensure that you get the bass that you expect from JL Audio.

Product Highlights:

  • sealed enclosure with one 12" TW3 subwoofer
  • 5/8" medium density fiberboard construction covered with black carpet
  • steel-mesh grille
  • 2-ohm total impedance
  • power handling: 125-400 watts RMS
  • frequency response: 22-200 Hz
  • sensitivity: 82 dB
  • 21-1/4"W x 14-5/8"H x 4-1/2"D1 x 7"D2 (without grille)
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • CS112TG-TW3 Sealed subwoofer enclosure (loaded with one 12TW3-D4 woofer)
  • Black metal grille (installed)
  • Warranty information

I installed this sub in my 2008 Dodge 2500 Mega Cab. It fits perfect behind the back seat! This sub sounds great! It has a deep clean base. I am impressed with the sound quality.

Audio Guy, Clare, MI


JL Audio CS112TG-TW3 Reviews

Average Customer Review(s):

(14 Reviews)

Awsome Base!

Audio Guy from Clare, MI on 7/5/2017

2008 Dodge Ram 2500
Crutchfield Customer Review (What's this?)

I installed this sub in my 2008 Dodge 2500 Mega Cab. It fits perfect behind the back seat! This sub sounds great! It has a deep clean base. I am impressed with the sound quality.

Pros: Small compact case for a 12 sub. High Quality Unit.

Cons: None

Perfect fit behind the seat

Dave from Ione CA on 6/20/2017

Crutchfield Customer Review (What's this?)

Clear clean base

Pros: High quality product

Cons: none

Worth the money

Gw from New Hampshire on 7/16/2016

2011 Ford F-150 FX4
Crutchfield Customer Review (What's this?)

I knew JL was a great brand and after reading other reviews I was willing to spend a little extra money for this shallow mount sub. Fits snugly under my rear bench, and leaves me plenty of room. Sound quality is amazing from a shallow sub, more than enough power and boom for any vehicle imo. I keep it set pretty low, but if you want to get people's attention at stop lights, it'll do that too. If you're wondering if it will be enough bass, it is.

Pros: Compact, clean sound, powerful

Cons: Kind of pricey, but it's JL

Awesome bass

William B from NOVA on 4/17/2016

2015 Ford F-150 XLT
Crutchfield Customer Review (What's this?)

I have a 5 channel amp (JL XD1000). With the amp only at half power, this sub HITS!

Pros: Just Awesome

Cons: Wish it fit completely under the back seat

Impressive sub

Les S from waipahu, HI on 3/17/2016

Crutchfield Customer Review (What's this?)

I have always stayed away from JL products due to pricing. I have purchased numerous shallow mounts and I regret that i wasted so much money when I could of just purchased JL in the first place. If you are looking for a shallow mount sub. Go and listen for yourself. Amazing how such a small enclosure can produce such sound quality.

Pros: Excellent overall quality product

Cons: None

JL Nuff Said

Rodney from Forney, Tx on 3/12/2016

Crutchfield Customer Review (What's this?)

Great punch for a 12", box is well built, nice tight bass



Worth the money

Joe from Texas on 1/11/2016

Crutchfield Customer Review (What's this?)

After installing a cheaper 10" sub in my old car, I decided to spend the extra to get a good quality brand. Crutchfield recommended this one and I can't be happier. It hits notes my old sub couldn't hit and the sound is much better.

Pros: Great Sound

Cons: More expensive than others out there, but you get what you pay for.

Loving this subwoofer & enclosure!

Hozer from Utah on 1/10/2016

Crutchfield Customer Review (What's this?)

This subwoofer has far exceeded my expectations. I've paired it with the 300 W RMS solo channel on a JL Audio XD700/5v2 amplifier and it hits hard and clean like you'd expect from a JL sub but much better than you'd think possible from one this thin. Without turning the amp gain up way too far, there's no distortion or popping. After purchasing a 2014 GMC Sierra crew cab, I found there were very few subwoofers that would fit under the rear seat and fewer that were capable of the output I wanted. The 12" model is a tight fit under my seat but the additional surface area of the 12" vs 10" was hard to pass up. The extra $50 over the sub alone was well worth it to get the full kit with a professional build box, nice carpeting, correct grill, and dimensions just right for my truck.

Pros: Tight, clean bass. Great power handling. Just the right dimensions for my vehicle.

Cons: The sub/box combo never seems to go on sale though the subwoofer by itself does.

JL Audio cs112TW3

Peter from Michigan on 11/28/2015

Crutchfield Customer Review (What's this?)

JL Audio once again turned out a great product. I mated this sub with an older JL Audio 500/1 amp and am very happy with the results



Very Impressed

RonG from florida on 6/4/2015

Crutchfield Customer Review (What's this?)

This is the first review i have ever given on anything but this is such a great product i felt obligated to do so. I have to admit i am a JL fan, and i always have been. I have owned just about every brand of subwoofers on the market other than the SPL / custom brands. I'm not saying there isnt anything out there that is louder or sounds better but from the ones that i have heard so far JL has the best sounding subs and this one definitely is no exeception. In fact this is one the best JL subs i have heard and you know that is saying something if you have heard there other products. This combo hits really hard. The sounds seem real and blends well with the rest of the system. Even at high volumes it holds these characteristics. Very clean and enjoyable sound. Sometimes i will take a ride just to listen to some good jams. I have this sub behind the passenger seat in a single cab F150 with an Alpine MRX 55 pushing 600 RMS. It is possible to heat to coils up when pushing the full 600 watts for extended periods of time on heavy bass tracks but if you use your head you will not have any problems. I have had this sub for a year or so now and it does sound better with time. One is plenty for a single cab pick up. Two maybe overkill unless you really care about what the people outside the vehicle can hear or if you want your vehicle to rattle apart. I did put this in my SUV just to see but i do not recommend it unless you have two. This is best for vehicles limited on space.

Pros: Best sounding small box speaker / combo i have ever heard. Better than most full size speakers. Will fit behind the seat of a single cab pick up, or at least a full size pick up. Will handle some real power without complaint. I have taken it out of the box being curious and it is a beautiful piece of equipment, very ruggedly built. I also have an 8" microsub that sounds amazing for its size but it is no match for this beast.

Cons: None with the sub. I have had some trouble with the box. I own 2 JL assembled systems and on both some the screws holding the sub in place were stripped. I have an 8" microsub and 5 of the 8 screws were stripped all the way out. One was stripped on the 12". I could not find the appropriate sized screw that would fix the problem and still have confidence in its ability to hold. Not a problem on the 12". I had to rotate the 8" to get a good seal. Check the screws first thing. Common problem

JL Audio

Victor S. from California on 4/22/2015

Crutchfield Customer Review (What's this?)

Great speaker! I have this in a 2014 Honda Pilot with a Fosgate 500 Mono block amp and it rocks. The bass is ridiculous. I highly recommend it.

Pros: loud, well built,

Cons: None

Great Quality

Blaine from Maine on 3/25/2015

Crutchfield Customer Review (What's this?)

After much shopping I decided to go with the JL sub, and I am glad I did. It sounds fantastic, and looks and feels like a high quality product.

Pros: Great sound, sturdy, aesthetically pleasing.

Cons: It was just a bit too big. I ended up having to remove the carpet liner on the back wall of my F-250 crew cab in order to fit the enclosure behind the rear seat.

Great Box For Trucks

Bobby from Hampton,VA on 9/25/2014

Crutchfield Customer Review (What's this?)

Great sounding sub, box is made well and fits perfectly behind the drivers seat of my 02 Ford Lightning. I'm pushing it with a 500 watt RMS JL amp and it hits hard. My only complaint is that the screws used to hold the speaker to the box were too small and they wouldn't tighten the sub against the box, so when it hit, the sub would rattle a bit. I got slightly bigger screws and now the box is air tight.

Pros: Sounds great, fits in a tight space.

Cons: The screws that mount the sub to the box were a little too small.

Jl Subs

Anonymous from burleson tx on 11/20/2013

Crutchfield Customer Review (What's this?)

JL subs never disappoint




Hands-on research

Product Research


Overview: The CS112TG-TW3 PowerWedge subwoofer system is a compact bass solution for vehicles with limited space. This sealed enclosure is loaded with one 12TW3-D4 subwoofer. The sub's dual 4Ω voice coils are internally wired in parallel to present a 2Ω final impedance.

Enclosure Design: The enclosure features top-quality MDF (medium-density fiberboard), constructed using state-of-the-art CNC woodworking equipment, and covered with high-grade automotive carpeting. The driver is protected by a black steel-mesh grille. One pair of 5-way binding posts is on the left side of the enclosure.


  • Width: 21-1/4"
  • Height: 14-5/8"
  • Depth:
    • 4-1/2" (at the top)
    • 7" (at the bottom)
    • 7-3/4" (including grille)

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

I wanted a woofer for my truck and it seems people have good things to say about JL [ JEREMY  Dec 08, 2016 ]
Jl is the best [ gregory  Nov 11, 2016 ]
small compact, will fit in tight spaces. [ Albert  Sep 25, 2016 ]
Wanted to add bass to my stereo system upgrade [ Leslie  Aug 26, 2016 ]
I knew what i wanted and i chose crutchfield because it had the best price i could find [ leopoldo  Aug 02, 2016 ]
A gift for someone [ Chris  Feb 25, 2016 ]
Recommended this by crutchfield advisor [ Joe  Dec 25, 2015 ]

2 questions already asked

How much clearance do you have? It easily fits under my 2013 Nissan Titan Crew back seat. With a little room to spare as well. If it fits, it's a great sub. [ Bret  Nov 12, 2017 ]
Very likely. I have mine under the rear seat of my 2012 silver 2500HD and it fits perfectly. [ David  Nov 11, 2017 ]
It fits under my 2011 perfectly..I know a 15 and 11 are different body styles..I would check the measurements..thats what I did with mine before I bought it. [ Phillip  Nov 11, 2017 ]
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system. [ Krissy  Sep 25, 2014 ]  Staff