JL Audio C1-570x C1 Series 5"x7" 50W RMS (225W Peak Power Handling) at 4 at Ohms, 2-Way Coaxial Car Speakers (Sold as Pair)
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What's Inside?
- • (2) 5"x7" C1 Series 2-Way Coaxial Car Speakers
- • (2) Bottom mount brackets
- • (12) 1-1/2" Screws (#8)
- • (2) 0.187" Crimpable female quick slides
- • (2) 0.110" Crimpable female quick slides
- • Owner's Manual
Why Choose JL Audio C1-570x Coaxial Speakers?
5x7/6x8 Coaxial Speakers with Aluminum Dome Tweeters
Upgrade your factory audio with the JL Audio C1-570x 5x7/6x8 coaxial speakers, engineered to deliver exceptional sound quality and long-lasting durability. The aluminum edge-driven dome tweeters produce crisp, detailed highs with outstanding clarity, while the mineral-filled polypropylene woofer delivers punchy midbass, natural vocals, and smooth midrange response. Built with premium materials and JL Audio's renowned engineering, the C1-570x offers reliable performance for years of everyday listening.
Delivers Smooth, Balanced Sound and Detailed Audio Performance
The JL Audio C1-570x is designed to reproduce music with remarkable balance and accuracy. Its carefully engineered woofer provides a smooth natural roll-off into the tweeter, creating seamless transitions between low, mid, and high frequencies. The result is clean vocals, detailed instruments, and an immersive soundstage that makes every genre—from rock and country to hip-hop and podcasts—sound clear and natural.
OEM Replacement 5x7/6x8 Car Speakers for Factory Audio Upgrades
Designed as a premium replacement for factory speakers, the JL Audio C1-570x 5x7/6x8 car speakers fit behind most factory grilles for a clean OEM appearance. By eliminating unnecessary cosmetic grilles, JL Audio focuses on premium speaker components that maximize sound quality and value. Whether powered by a factory radio or paired with a 4-channel amplifier, the C1-570x delivers higher output, lower distortion, and the signature JL Audio performance that makes it one of the best upgrades for factory sound systems.
JL Audio C3-570 vs C2-570x vs C1-570x | Which 5x7" JL Audio Speaker Is Best?
| JL Audio 5x7" Speaker Performance Comparison |
JL Audio C3-570
5x7" 2-Way Component Speaker System
BEST SOUND QUALITY
- • 5x7" Component Speakers
- • 75 Watts RMS
- • 225 Watts Peak
- • 1" Silk Dome Tweeters
- • External Crossovers
- • Adjustable Tweeter & Midrange Controls
- • Premium Soundstage & Imaging
- • Best for Front Stage Systems
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JL Audio C2-570x
5x7" 2-Way Coaxial Speaker
BEST COAXIAL
- • 5x7" 2-Way Coaxial
- • 60 Watts RMS
- • 225 Watts Peak
- • 0.75" Silk Dome Tweeter
- • Smooth & Natural Sound
- • Strong Midbass Response
- • Premium Factory Upgrade
- • Ideal Front or Rear Speakers
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JL Audio C1-570x
5x7" 2-Way Coaxial Speaker
BEST VALUE
- • 5x7" 2-Way Coaxial
- • 50 Watts RMS
- • 225 Watts Peak
- • 0.75" Aluminum Dome Tweeter
- • High 93 dB Sensitivity
- • Easy to Drive
- • Excellent OEM Replacement
- • Budget-Friendly Upgrade
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JL Audio C1-570x Recommended Amplifiers | Best 4-Channel Amp Pairing for Clean Power & Everyday Performance
JL Audio C1-570x Amplifier Matching Guide
Recommended 4-Channel Amplifiers for Improved Clarity, Headroom, and Factory Audio Upgrades
Amplifier Matching Overview
C1-570x Power Rating: 50 Watts RMS per Speaker
Speaker Configuration: 4-Ohm 2-Way Coaxial Speaker System
JL Audio Recommended Amp Power: 10W–75W RMS per Channel @ 4Ω
Ideal Amp Range: 50W–75W RMS per Channel @ 4Ω
Goal: Increase volume, improve midbass control, reduce distortion, and provide clean, reliable power beyond what a factory head unit can deliver.
Best Setup: A quality 4-channel Class-D amplifier producing 50–75W RMS per channel with an 80Hz High-Pass Filter.
Top Recommended Amplifiers for JL Audio C1-570x
JL Audio JD400/4: Best Overall – Delivers 75W RMS x 4 @ 4Ω, making it one of the best all-around matches for the C1-570x. It offers excellent headroom, clean power, outstanding reliability, and leaves room for future speaker upgrades.
Alpine S2-A36F: Best Value – Produces 60W RMS x 4 @ 4Ω, closely matching the C1-570x's power handling. Its compact Class-D design delivers excellent efficiency and one of the best performance-per-dollar values available.
Rockford Fosgate R2-300X4: Best Daily Driver – A dependable Class-D amplifier known for clean output, excellent reliability, and impressive speaker control. Ideal for listeners wanting premium sound quality without overspending.
Kicker CXA360.4t: Best Performance per Dollar – Produces approximately 65W RMS x 4 @ 4Ω, delivering excellent dynamics, efficient Class-D performance, and outstanding long-term durability for daily-driven vehicles.
Kicker KEY200.4: Best Factory Radio Upgrade – Delivers 50W RMS x 4 while adding built-in DSP, automatic EQ, and time alignment. Perfect for dramatically improving sound quality without replacing the factory radio.
JL Audio RD400/4: Best Premium Upgrade – Produces 75W RMS x 4 @ 4Ω with lower distortion, tighter speaker control, and premium components for audiophile-grade performance.
Alpine KTA-450 Power Pack: Best Hidden Installation – Delivers 50W RMS x 4 in an extremely compact chassis that fits behind many dashboards, making it perfect for OEM-style or stealth installations.
Gain & Tuning Recommendations
Gain Setting: Set amplifier gain using an oscilloscope, distortion detector, or multimeter to match approximately 50W RMS per channel. Avoid setting gain solely by ear.
High-Pass Filter (HPF): 80Hz with a 12dB/octave or 24dB/octave slope for cleaner vocals, improved midbass, and reduced distortion.
Bass Boost: OFF (0dB) to maintain the most natural frequency response.
Low-Pass Filter (LPF): OFF unless the amplifier is powering a dedicated subwoofer.
EQ: Start with a flat EQ and make only small adjustments after installation.
Installation Tips
Door Treatment: Adding sound-deadening material to the doors significantly improves midbass response and reduces unwanted vibrations.
Speaker Mounting: Ensure the speakers are securely mounted and properly sealed to maximize bass performance.
Power Recommendation: Although the C1-570x is rated for 50W RMS, JL Audio recommends amplifiers producing up to 75W RMS per channel. When gains are set correctly, the extra clean headroom results in lower distortion, improved dynamics, and better overall sound quality.
Pro Tip: Many C1-570x owners report that the biggest improvement comes from adding a dedicated amplifier rather than replacing the speakers again. A quality 50–75W RMS amplifier combined with an 80Hz high-pass filter produces noticeably cleaner vocals, stronger midbass, improved dynamic range, and higher output with significantly less distortion than head-unit power alone. For factory-radio installations, the Kicker KEY200.4 is a favorite thanks to its built-in DSP and automatic tuning, while the JL Audio JD400/4 remains the best all-around choice for long-term system upgrades.
Frequently Asked Questions (FAQ)
- • Can I run the JL Audio C1-570x from my factory or aftermarket head unit?
Yes. The C1-570x was designed with high sensitivity, allowing it to perform well on factory and aftermarket head units. Many owners choose it specifically because it delivers noticeably better clarity than stock speakers without immediately requiring an amplifier, although adding one greatly improves overall performance.
- • Do I need an amplifier for the JL Audio C1-570x?
Not necessarily, but it's one of the most common upgrades recommended by owners. A quality 4-channel amplifier producing 50–75W RMS per channel provides cleaner output, stronger midbass, higher volume, and significantly less distortion than head-unit power alone.
- • Why do my C1-570x speakers sound too bright?
A few owners mention that the aluminum dome tweeters can sound bright depending on vehicle acoustics. In most cases, reducing the treble EQ, aiming the speakers away from reflective glass surfaces, adding sound deadening, or using an amplifier with proper tuning produces a much smoother sound.
- • Why isn't there much bass after installing the C1-570x?
The speakers are often limited by the vehicle rather than the driver itself. Poor door sealing, missing sound deadening, factory radio power, or incorrect polarity can greatly reduce bass output. Proper installation and clean amplifier power noticeably improve midbass performance.
- • Will the JL Audio C1-570x fit my factory 5x7 or 6x8 speaker locations?
Yes. The C1-570x is designed to fit most factory 5x7-inch and 6x8-inch speaker openings found in many Ford, Lincoln, Mazda, Mercury, and other vehicles. Depending on your vehicle, speaker adapters or wiring harnesses may still be required for a true plug-and-play installation.
- • What amplifier power works best with the JL Audio C1-570x?
Although JL Audio recommends amplifiers between 10W and 75W RMS per channel, most enthusiasts find that 50–75W RMS per channel delivers the ideal balance of clean power, dynamic headroom, and long-term reliability without risking speaker damage when gains are set correctly.
- • Should I add a subwoofer with the C1-570x?
Yes. Many owners pair the C1-570x with a dedicated subwoofer because it allows the speakers to focus on mids and highs while the subwoofer handles deep bass. Using an 80Hz high-pass filter typically results in cleaner vocals, louder playback, and lower distortion.
- • Do the JL Audio C1-570x speakers need a break-in period?
Yes. Many users notice improved midbass response and a smoother overall sound after several hours of moderate listening as the woofer suspension loosens slightly during normal use.
- • Are the JL Audio C1-570x worth buying over cheaper aftermarket speakers?
For listeners looking for balanced sound quality, excellent build quality, and long-term reliability, the C1-570x remains one of the most recommended entry-level premium speakers. Owners frequently praise its clarity, sensitivity, and ability to perform well even on factory power.
- • Can I install the C1-570x myself?
Yes. Many DIY installers successfully install the C1-570x using vehicle-specific mounting brackets and wiring harness adapters. Using the proper adapters avoids cutting factory wiring and makes future upgrades or vehicle restoration much easier.
- Diameter : 5x7 Inch
- Sensitivity : 93 dB
- Impedance : 4 Ohm
- Frequency Response : 40-24000 Hz
- Peak Power Handling : 225 Watts
- Design : 2 Way
- Top Mount Depth : 2.5 Inches
- Woofer Composition : Injection Molded Polypropylene
- RMS Power Handling : 50 Watts
Features:
- Distinctive Sound: Aluminum edge-driven dome tweeter defines the speaker's distinctive sound.
- Premium Design: 5"x7" speakers with solid construction and finish.
- Striking Woofer: Yellow mineral-filled polypropylene woofer delivers impactful lows.
- Natural Roll-Off Transition: Woofer designed for a natural roll-off transition to the highs.
- High-Frequency Detail: Aluminum edge-driven tweeter delivers crisp detail in high frequencies.
- Incredible Imaging: Offers incredible imaging and minimal distortion.
- No Grilles: Designed without aftermarket grilles to utilize factory grilles for a streamlined look.
- Better Speaker Build: Savings from no grilles are used to build an all-round better speaker.
Specifications:
- Speaker Size: 5"x7"
- Design: 2-way
- Tweeter Design: 3/4" Edge-Driven Dome
- Impedance (Ohms): 4
- Tweeter Composition: Aluminum
- Woofer Composition: Mineral-Filled Injection-Molded
- Woofer Surround: Rubber
- Sensitivity (1W at 1 meter): 90.5 dB
- Sensitivity at 2.83 volts: 93 dB
- Frequency Response: 40 - 24,000 Hz
- Minimum RMS Wattage: 10 watts
- Maximum RMS Wattage: 50 watts
- Peak Power Handling: 225 watts
- Top-Mount Depth: 2 1/2 inches
- Bottom-Mount Depth: 3 1/16 inches
- Cutout Diameter or Length: 0 inches
- Mounting Height: 0.501 inches
- Frame Width: 5.524 inches
- Frame Length: 7.6 inches
- UPC: 699440990448
- Weight: 10
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.
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Write a review!
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Got these speakers for my Ford F250, and let me tell you, the lows are like a rolling thunder, and the highs are like fireworks. Seriously impressed with the sound quality. Running them straight off the head unit for now, but a Rockford amp is on the way to unleash their full potential. Highly recommend!
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great highs and mids. lows lacks a little bit but it's understandable for a 5x7. replaced my F250 stock speakers with these and they sounded great. maybe better if I used a better amp.
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These 5x7 speakers have clear sound, even when connected to the stereo. They've got some deep bass and a rich full range sound.
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Way better than all the entry level speakers I've tried before! Suprising JL Audio got something like this for us who's budget is not that deep. Thanks! Clean sound, loud, and got some decent bass out of them!
