JL Audio CS112TG-TW3

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

Outlet: Open Box

Item #: 136112TGW3

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6 Reviews

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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

Enclosed Subwoofers 101

An enclosed subwoofer is a box with a subwoofer already installed. The advantage to buying an enclosed sub is that the manufacturer made the sub, then designed and built the box as a perfect match, so you'll get the best possible performance. Every enclosed sub has a maximum RMS power handling rating, so pair it with an amp with a similar RMS power rating to get the best performance.

JL Audio CS112TG-TW3 Reviews

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JL Audio cs112TW3

Written By Peter, Michigan on Saturday, November 28, 2015

  • Not Rated
    "Coolness Factor"
  • Not Rated
    Build Quality
  • Ease of Use
  • Sound Quality
  • Not Rated

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

Written By RonG, florida on Thursday, June 04, 2015

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

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

Written By Victor S., California on Wednesday, April 22, 2015

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  • "Coolness Factor"
  • Build Quality
  • Ease of Use
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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

Written By Blaine, Maine on Wednesday, March 25, 2015

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

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

Written By Bobby, Hampton,VA on Thursday, September 25, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
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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

Written By Anonymous, burleson tx on Wednesday, November 20, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
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  • Ease of Use
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JL subs never disappoint

Hands-on research

What's in the box?

Download owner's manual

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

Features and Specs

Woofer Size (inches) 12
Woofer Material Mica-filled Poly
Enclosure Type Sealed
Color Black
Pieces in System 1
Width (inches) 21-1/4
Height (inches) 14-5/8
Depth (inches) 7-3/4
Second Depth (inches) 4-1/2
Connector Type 5-way post
Frequency Response 22-200 Hz
Power Range (Watts RMS) 125-400
Maximum Wattage 800
Sensitivity 82 dB
Impedance 2 ohms
Parts Warranty 2 Years
Labor Warranty 2 Years

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

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