JL Audio C1-075ct
C1 Series 3/4" aluminum dome tweeters
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JL Audio C1-075ct | C1 Series 0.75" Component Tweeters
The JL Audio C1-075ct (Part Number: 010-03353-00) is an entry-level high-performance tweeter set designed to provide a significant boost in clarity over factory-installed units. Featuring edge-driven aluminum domes, these tweeters are engineered for refined high-frequency extension and a smooth, natural soundstage. With their compact size and versatile mounting hardware, they are the ideal solution for upgrading dashboards or door sails in a wide range of vehicles.
Product Highlights
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Edge-Driven Aluminum Domes: These 0.75-inch (19 mm) tweeters utilize real aluminum diaphragms for superior stiffness and high-frequency reach. The edge-driven design reduces distortion and improves imaging, delivering crisp detail that outshines standard textile or paper drivers.
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Silk Suspensions & Ferrofluid Cooling: To tame the "ringing" common in metal dome tweeters, JL Audio uses silk suspensions and ferrofluid cooling. This combination damps the diaphragm for smooth reproduction and helps dissipate heat during long, high-volume sessions.
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Advanced Tweeter Protection: The included outboard crossovers feature Advanced Tweeter Protection Circuitry. This electronic system monitors the signal and minimizes the risk of tweeter failure during accidental high-power or distortion peaks.
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True High-Frequency Extension: While most factory tweeters roll off early, the C1-075ct provides detailed reproduction all the way up to 24 kHz, revealing textures in your music you may have never heard before.
Key Features
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12 dB/Octave High-Pass Filters: The kit includes dedicated in-line, outboard crossover networks. These high-quality filters ensure the tweeters only receive the safe frequency range (above 4 kHz), resulting in cleaner sound and better reliability.
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Flush and Surface Mount Fixtures: JL Audio includes versatile mounting hardware in the box. You can choose a flush-mount look for a factory-integrated appearance or use the surface-mount pods for easier installation on pillars or dashes.
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Neodymium Magnet Motor: The high-energy neodymium magnet provides the driving force needed for high sensitivity and compact physical dimensions, allowing these tweeters to fit into tight factory locations.
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Exceptional Value: As part of the C1 line, these tweeters are positioned to offer a "real deal" upgrade path, providing genuine JL Audio engineering at a highly accessible price point.
Technical Specifications
| Feature | Specification |
| Part Number | 010-03310-00 |
| Speaker Size | 19 mm (0.75 in.) |
| Power Handling (RMS) | 50 Watts |
| Power Handling (Peak) | 150 Watts |
| Impedance | 6-Ohms |
| Frequency Response | 4 kHz – 24,000 Hz |
| System Efficiency | 91.0 dB @ 1W/1m |
| Flush Mount Depth | 0.40 in (10 mm) |
What’s In The Box?
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(2) C1-075ct Aluminum Dome Tweeters
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(2) In-line 12 dB/Octave High-Pass Filters
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(2) Flush-mount housings & (2) Surface-mount housings
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(2) Metal spring clips for flush mounting
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Mounting screws 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.