


JL Audio C2-600x C2 Series 6" 15cm Coaxial Car Door Speakers 60w RMS Pair
Couldn't Load Pickup availability
The JL Audio C2-600x is a pair of 6-inch (150 mm) coaxial car speakers from the C2 Series, rated at 60W RMS, with 0.75-inch silk dome tweeters and woofer grilles included.
This listing is the 6-inch C2-600x. The C2 Series coaxial is also available as the 6.5-inch JL Audio C2-650x.
Key specifications
- Size: 6 inch (150 mm) coaxial
- Power handling: 60W RMS, 225W peak
- Recommended amplifier power: 15–100W RMS per channel
- Sensitivity: 90.5 dB @ 1W / 1m
- Impedance: 4 Ω
- Frequency response: 59 Hz–22 kHz ± 3 dB
- Tweeter: 0.75 inch (19 mm) silk dome
- Grilles: included
- Sold as: pair
C2 Series 6-inch (150 mm) coaxial speaker system
The C2-600x pairs a 6-inch (150 mm) woofer with a coaxially mounted 0.75-inch (19 mm) silk dome tweeter.
The Evolution C2 Series is designed to deliver detailed high frequencies, smooth mid-range and strong mid-bass through real silk dome tweeters and precision-engineered woofer designs.
The woofer uses a mineral-filled polypropylene cone, long-excursion design and stamped steel frame, developed using JL Audio's woofer modelling systems.
The 6-inch format fits directly in many vehicles. Multiple mounting patterns on the woofer frame allow installation in most vehicles that accept a 6.5-inch (165 mm) speaker.
The silk dome tweeter is small enough to minimise protrusion, so C2 coaxials will fit behind most factory speaker grilles. Response is smooth and extended both on and off axis.
Each pair comes with woofer grilles — a black grille tray with satin silver accents and a black steel mesh grille with an electroformed JL Audio logo.
Sonic character: Clean and Dynamic. Sold as a pair.
Explore the full range in JL Audio C2 Speakers.
Specification
| Size | 6 Inch |
|---|---|
| RMS Power | 60W |
| Shape | Round |
| Type | Coaxial |
| Series | C2 |
| Article Number | C2-600X |
| Country of Manufacture | China |
More specs
| |
What's Included
- C2-600x
JL Audio
About the JL Audio C2-600X
From our tech experts at CEN
JL Audio C2 Series 6 inch coaxial speakers, with the tweeter mounted in the centre of the woofer, rated at 60w RMS.
Who it suits
Drivers replacing tired factory speakers who want a clear improvement without relocating tweeters. C2 adds noticeably more detail and output for a modest step up.
Our tech experts advise
Sizes, adapter rings and harnesses vary by vehicle, year and trim, so we confirm what your car takes before ordering. Door treatment matters as much as the speaker, and JL drivers repay an amplifier. 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
Recommended For You
Discover more top-rated gear, handpicked to go with what you're viewing

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
Frequently Asked Questions
Q: Will these speakers fit my car?
A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.
Q: Do I need an amplifier to run these speakers?
A: Not always. Most speakers will run from a standard head unit, but a dedicated amplifier lets them perform at their best, particularly for component sets and higher power handling models. The RMS figure in the Specification tab is the guide to how much clean power they can use.
Q: What is the difference between coaxial and component speakers?
A: Coaxial speakers combine the tweeter and woofer in one unit for a simple like-for-like upgrade. Component sets separate the tweeter and woofer with a crossover for better imaging and detail, and suit installs where sound quality is the priority.
Q: Do these come as a pair?
A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
Q: Will the JL Audio C2-600x fit my 6.5 inch speaker location?
A: Multiple mounting patterns are provided on the woofer frame for easy installation into most vehicles that accept a 6.5 inch (165 mm) speaker.
Q: Are grilles included?
A: Yes. Each woofer comes with a black grille tray with satin silver accents and a black steel mesh grille with an electroformed JL Audio logo.
Q: What power do they handle?
A: They are rated at 60W RMS continuous and 225W peak, with 15 - 100W RMS per channel recommended.
Not Sure Where to Start?
Straightforward advice and the latest news from our Nottingham team.
All Guides and News →
Car Audio
Pioneer Perfect Fit 9-Inch Stereos: Fitting Kits and Every Car They Fit (2026)
Read the guide →
Car Audio
BMW Speaker Upgrades Explained: Where to Start and What Fits
Read the guide →
Car Audio
Christmas Gift Guide 2026: Car Audio, Dash Cams and Outdoor Tech
Read the guide →
Car Audio
Upgrading Car Audio Without Replacing the Factory Stereo
Read the guide →
Car Audio
Amplifier Wiring Kits Explained: Gauge, Fuses and Earths
Read the guide →
Car Audio
New at CEN: Option Audio Drive-10Flat — Golf Mk8 Bass, Zero Boot Space Lost
Read more →
































