JL Audio CS112TG-TW3 Subwoofer 12" TW3 PowerWedge Sealed Sub Enclosure 400w RMS
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The JL Audio CS112TG-TW3 is a sealed Truck PowerWedge enclosed subwoofer system from JL Audio's TW3 range, built around a single 12-inch 12TW3-D4 driver rated at 400W RMS at 2 ohms. It measures just 178 mm deep at the base and 114 mm at the top, making it a ready-to-install solution for truck cab and other space-restricted installations.
Key specifications
- Driver: single 12-inch 12TW3-D4
- Enclosure: sealed Truck PowerWedge
- Power handling: 400W RMS
- Recommended amplifier power: 100–400W RMS
- Impedance: 2 ohm
- Base depth: 7 in. (178 mm)
- Top depth: 4.5 in. (114 mm)
- Height: 371 mm
- Weight: 13.2 kg
- Construction: CNC-cut high-grade MDF
- Finish: black automotive carpet
- Terminal: five-way binding post
- Grille: black steel mesh, included
CS112TG-TW3 Single 12TW3 Truck PowerWedge Enclosed Subwoofer System, Sealed, Black Carpet (400 W, 2 Ω)
A ready-to-install sealed sub enclosure built around the JL Audio 12TW3, designed to fit where standard boxes won't.
The wedge profile measures just 7 in. (178 mm) deep at the base and 4.5 in. (114 mm) at the top, making it well suited to truck cab installations with limited space. The enclosure volume and alignment have been optimised specifically for the 12TW3, with real-world listening used to fine-tune the result.
It arrives wired, loaded and ready to connect. A five-way binding post terminal makes amplifier hookup straightforward.
The enclosure is covered in black high-grade automotive carpet with "JL AUDIO" embroidered in silver on the front baffle. A steel mesh grille is included to protect the driver.
- Construction: CNC-cut high-grade MDF
- Finish: black automotive carpet
- Nominal impedance: 2 Ω
- Recommended amplifier power: 100–400W RMS
- Base depth: 7 in. (178 mm)
- Top depth: 4.5 in. (114 mm)
- Enclosure type: sealed
- Terminal: five-way binding post
- Grille: steel mesh, included
Explore the full range in JL Audio PowerWedge Subwoofer Enclosures.
Specification
| Size | 12 Inch |
|---|---|
| RMS Power | 400W |
| Shape | Square |
| Voice Coil | Single |
| Type | Passive Enclosure |
| Series | PowerWedge |
| Article Number | CS112TG-TW3 |
| Country of Manufacture | China |
More specs
| |
What's Included
- CS112TG-TW3
- Warranty information
- JL Audio stickers
JL Audio
About the JL Audio CS112TG-TW3
From our tech experts at CEN
The JL Audio CS112TG-TW3 is a sealed Truck PowerWedge enclosed subwoofer system, housing a single 12-inch 12TW3-D4 driver rated at 400W RMS at 2 ohms. The wedge profile measures 178mm deep at the base and 114mm at the top, designed for truck cab installations with limited depth. It arrives loaded, wired and ready to connect.
Who it suits
This suits truck owners and car audio enthusiasts who need strong bass where standard subwoofer boxes will not fit. The sealed enclosure produces accurate, controlled low frequencies rather than high output volume. Those wanting a different size or format can browse the JL Audio collection.
Our tech experts advise
You need an amplifier delivering 100–400W RMS at 2 ohms; verify your amp's rated output at 2 ohms before buying. The enclosure is 537mm wide and 371mm tall, so measure your available cab space beforehand. Professional fitting cost varies per vehicle — see our car audio installation page for details.
Explore the full JL Audio range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all JL Audio
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Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
- 3
Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
Unit 25 Technology Drive, Beeston, Nottingham NG9 1LA
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Frequently Asked Questions
Q: Do I need an amplifier for this subwoofer?
A: Yes, unless it is an active (powered) subwoofer with a built-in amplifier. Passive subwoofers need an external amplifier matched to the RMS power and impedance shown in the Specification tab.
Q: What does RMS power mean?
A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.
Q: Can CEN build or supply an enclosure and fit everything?
A: Yes. CEN supplies enclosures and offers professional installation from our Nottingham premises, including amplifier wiring. Contact us to discuss your build.
Q: How deep is the CS112TG-TW3?
A: The wedge measures 178 mm (7 in) deep at the base and 114 mm (4.5 in) at the top, making it suited to installs with limited depth such as truck cabs.
Q: What amplifier do I need for the CS112TG-TW3?
A: It has a nominal impedance of 2 ohms and is rated at 400W RMS. JL Audio recommends 100 - 400W of amplifier power.
Q: Does the CS112TG-TW3 come ready to install?
A: Yes. It is shipped wired, loaded and ready to connect via a five-way binding post terminal, so it only needs connecting to a suitable amplifier.
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