



JL Audio C1-650 C1 Series 6.5" 16.5cm Component Car Door Speakers 50w RMS Pair
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The JL Audio C1-650 is a 6.5-inch (165 mm) 2-way component car speaker system from the C1 Series, rated at 50W RMS per pair. It features a mineral-filled polypropylene cone woofer and a 0.75-inch (19 mm) aluminium dome tweeter, designed for a straightforward fit behind factory grilles.
This listing is the C1-650 component system. The C1 Series 6.5-inch speaker is also available as the coaxial JL Audio C1-650x.
Sold as a pair. Grilles are not included.
Key specifications
- Woofer: 6.5-inch (165 mm), mineral-filled polypropylene cone
- Tweeter: 0.75-inch (19 mm) edge-driven aluminium dome
- Power handling: 50W RMS, 225W peak
- Recommended amplifier power: 10 to 75W RMS per channel
- Sensitivity: 91.0 dB @ 1W/1m
- Impedance: 4 ohms
- Frequency response: 59 Hz to 22 kHz (±3 dB)
- Crossover: in-line 2nd order high-pass filter with Advanced Tweeter Protection Circuitry
C1-650 6.5-inch (165 mm) 2-way component speaker system
2-way component system: 6.5-inch (165 mm) woofer with 0.75-inch (19 mm) aluminium dome tweeter.
C1 speakers deliver solid audio performance in a format built for easy installation behind factory grilles. Multi-application adaptor rings are included for the C1-650 woofers, allowing drop-in fitment in vehicles with oversized 6.5-inch and 6.75-inch speaker openings. Without the ring, the woofers will also fit many standard "6-inch" locations. Surface and flush mounts are included with the tweeters for maximum installation flexibility.
Woofer
C1 woofer drivers are developed using proprietary FEA modelling and JL Audio's expertise in low-frequency driver design, enabling high output with low distortion and a smooth, dynamic sound.
The C1-650 is built around a proprietary stamped steel 6.50-inch (165 mm) frame and a DMA-optimised motor system. A mineral-filled, injection-moulded polypropylene cone is suspended with a rubber surround and a flat Conex® spider at the top of the voice coil to control movement precisely. Tinsel leads are routed and attached to the spider to prevent fatigue and buzzing.
Tweeter
The edge-driven aluminium dome tweeter delivers high-frequency clarity and definition, with inherently strong off-axis response. It uses a silk surround suspension, Ferrofluid in the voice coil gap, and a neodymium magnet circuit.
An in-line, outboard 2nd order high-pass filter with Advanced Tweeter Protection Circuitry is included to improve smoothness and power handling.
Explore the full range in JL Audio C1 Speakers.
Specification
| Size | 6.5 Inch |
|---|---|
| RMS Power | 50W |
| Shape | Round |
| Type | Component |
| Series | C1 |
| Article Number | C1-650 |
| Country of Manufacture | China |
More specs
| |
What's Included
- C1-650
JL Audio
About the JL Audio C1-650
From our tech experts at CEN
The JL Audio C1-650 is a 6.5" (165mm) 2-way component car speaker system from the C1 Series, rated at 50W RMS and sold as a pair. It combines a mineral-filled polypropylene cone woofer with a 0.75" (19mm) edge-driven aluminium dome tweeter and an in-line crossover with Advanced Tweeter Protection Circuitry. Grilles are not included.
Who it suits
The C1-650 suits drivers who want the staging benefits of a component system — tweeters positioned separately from the woofers — without stretching to a higher series. Those who prefer a simpler, single-driver install can consider the JL Audio C1-650x coaxial, which fits the same opening.
Our tech experts advise
Multi-application adaptor rings are included, allowing the woofer to fit standard 6", oversized 6.5" and 6.75" door openings. Tweeters ship with both surface and flush-mount hardware for flexible positioning. Keep amplifier power between 10 and 75W RMS per channel. Professional fitting is priced per vehicle; visit 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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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: Are grilles included with the JL Audio C1-650?
A: No. The C1-650 is sold as a pair, but grilles are not included.
Q: Will the C1-650 fit 6.75-inch speaker openings?
A: Yes. Multi-application adaptor rings are included for drop-in installation in vehicles with oversized 6.5-inch and 6.75-inch openings. Without the ring, the woofers also fit many 6-inch speaker locations.
Q: How can the C1-650 tweeters be mounted?
A: Surface and flush mounts are included with the C1 tweeters, so they can be installed in a range of locations.
























