JL Audio CP108LG-W3V3 Sub 8" MicroSub Ported Subwoofer Enclosure 250w RMS
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The JL Audio CP108LG-W3v3 is a single 8" MicroSub slot-ported enclosed subwoofer system, rated at 250W RMS at 4 ohms. It houses one 8W3v3-4 driver in a low-profile CNC-cut MDF enclosure just 130mm deep, from JL Audio's W3v3 range.
Want more output? The CP208LG-W3v3 dual 8" MicroSub uses two of the same drivers. For a smaller box, see the CP106LG-W3v3 6" MicroSub.
Key specifications
- Driver: single 8" 8W3v3-4
- Enclosure: slot-ported, low-profile MicroSub
- Power handling: 250W RMS
- Recommended amplifier power: 100–250W
- Impedance: 4 ohm
- Grille: black steel mesh
- Dimensions: 473mm W x 279mm H x 130mm D
- Weight: 7.89 kg
CP108LG-W3v3 Single 8W3v3 MicroSub Enclosed Subwoofer System, Ported, Black Carpet (250W, 4Ω)
This MicroSub system delivers output and low-frequency extension typically associated with much larger enclosures. Performance comes from precise tuning of the 8W3v3 driver into an efficient slot-ported design.
Extensive interior bracing allows thinner wall material, maximising internal volume relative to the exterior footprint. The port wraps around two walls to achieve a low tuning frequency, ensuring strong extension and smooth response. Flared port entry and exit reduce airflow noise.
The system ships wired, loaded and ready to connect via a five-way binding post terminal.
Finish: black high-grade automotive carpet with silver "JL AUDIO" embroidery on the front baffle. Steel mesh grille included.
Construction: CNC-cut high-grade MDF
Recommended amplifier power: 100–250W
Nominal impedance: 4Ω
Explore the full range in JL Audio MicroSub Subwoofer Enclosures.
Specification
| Size | 8 Inch |
|---|---|
| RMS Power | 250w |
| Shape | Square |
| Voice Coil | Single |
| Type | Passive Enclosure |
| Series | MicroSub |
| Article Number | CP108LG-W3V3 |
| Country of Manufacture | China |
More specs
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What's Included
- CP108LG-W3v3 Slot-ported subwoofer enclosure (loaded with one 8W3v3-4 woofer)
- Black metal grille (installed)
JL Audio
About the JL Audio CP108LG-W3V3
From our tech experts at CEN
A JL Audio 8 inch subwoofer supplied in a MicroSub ported enclosure, handling 250w RMS. The box is built to the driver’s specification rather than to fit a shelf.
Who it suits
Drivers who want the result without commissioning a custom build. Ported enclosures play louder and dig deeper for the same power, at the cost of size.
Our tech experts advise
Match the amplifier to the enclosure’s rating rather than the driver’s headline figure, and secure the box properly: an unrestrained enclosure is dangerous in a crash. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
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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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 CP108LG-W3v3?
A: It is 130 mm deep, 473 mm wide and 279 mm high, and weighs 7.89 kg.
Q: What amplifier do I need for the CP108LG-W3v3?
A: It has a nominal impedance of 4 ohms and is rated at 250W RMS. JL Audio recommends 100 - 250W of amplifier power.
Q: Does the CP108LG-W3v3 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.
