JL Audio C3-525cw
Evolution C3 Series 5-1/4" Component Woofer (Single)
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JL Audio C3-525cw | Evolution® C3 Series 5.25" Component Woofer (Single)
The JL Audio C3-525cw (Part Number: 010-03348-00) is a high-performance 5.25-inch (130 mm) component woofer engineered for those who demand both power and installation flexibility. Sold individually, this driver is a "convertible" component, meaning it can be used as a dedicated woofer in a component system or transformed into a coaxial driver using JL Audio's specialized mounting hardware. It is built to deliver clean, articulate mid-bass and a smooth midrange response.
Product Highlights
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Convertible Flexibility: The C3-525cw is uniquely designed to solve installation challenges. It can be installed as a standard component woofer with a separate tweeter, or you can mount a C3 tweeter directly to its center pole for a high-end coaxial configuration.
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DMA-Optimized Motor: Using JL Audio's proprietary Dynamic Motor Analysis, the motor system is tuned to remain highly linear even under high power. This dramatically reduces distortion and ensures that transients—like a kick drum or bass pluck—are reproduced with exceptional precision.
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Elevated Frame Cooling: This patented design features slots directly above the top-plate that deliver cool air to the voice coil. By minimizing heat build-up, the speaker maintains its sound quality and power handling during long, high-volume listening sessions.
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Mineral-Filled Polypropylene Cone: The woofer cone is made from a mineral-filled polymer that provides a high stiffness-to-mass ratio. This results in impactful mid-bass and a natural, uncolored midrange that blends seamlessly with a tweeter.
Key Features
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Oversized 1.2-inch Voice Coil: The large voice coil provides superior thermal management and increased power handling compared to standard 5.25-inch drivers, allowing for extended dynamic range.
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Injection-Molded Polymer Basket: The basket is designed to be non-magnetic and resonant-free, providing a rock-solid foundation for the moving parts of the speaker.
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Integrated Phase Plug Support: When used in a component setup, the included phase plug replaces the tweeter post to improve high-frequency dispersion from the woofer's center.
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Premium Grille Included: Each unit comes with a durable black grille tray and a steel mesh insert featuring an electroformed JL Audio logo, protecting the driver without obstructing sound flow.
Technical Specifications
| Feature | Specification |
| Part Number | 010-03348-00 |
| Speaker Size | 130 mm (5.25 in.) |
| Power Handling (RMS) | 75 Watts |
| Recommended Amp Power | 25 - 150 Watts |
| Nominal Impedance | 4-Ohms |
| Frequency Response | 48 Hz – 25 kHz (System Level) |
| Sensitivity | 90.0 dB @ 1W/1m |
| Mounting Depth | 2.27 in (58 mm) |
What’s In The Box?
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(1) JL Audio C3-525cw Woofer
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(1) Component Phase Plug
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(1) Coaxial Tweeter Mounting Post
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(1) Woofer Grille (Tray and Mesh Insert)
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Mounting hardware and Owner's Manual
What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.