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JL Audio C2-600X Evolution™ C2 Series 6" 2-way car speakers

Item # 136C2600X

Find what Fits your vehicle


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3 questions - 7 answers

Item # 136C2600X

In stock

Deeply discounted installation gear

$279.99 -$30.00 Price break
$249.99 pair

About the JL Audio C2-600X

Buck Pomerantz

JL Audio's Evolution C2 Series speakers

Side view of Evolution C2 speaker JL Audio's Evolution C2 Series speakers bring precision sound to your vehicle. They'll reproduce subtle elements of your music like delicate woodwinds or soprano vocals, then turn on a dime to deliver the deep thrum of the bass or thunder of the drums.

Silk tweeter delivers smooth highs

Silk tweeter

The C2-600X 6" speakers feature rugged polypropylene cones that can handle high power without distortion, so you get full-bodied low tones you can really feel. The 3/4" silk dome tweeters serve up smooth-sounding high frequencies that won't tax your ears, adding a satisfying dose of realism to your soundstage. Built-in crossovers make sure your tunes play smoothly across the whole musical spectrum. JL Audio includes a pair of grilles for custom installations.

Priced per pair

Product highlights:

  • 2-way 6" speakers (pair)
  • injection-molded mica-filled polypropylene woofer with butyl rubber surround
  • 3/4" silk dome tweeter
  • built-in crossover network
  • 4-ohm impedance
  • handles up to 60 watts RMS (225 watts peak power)
  • frequency response: 59-22,000 Hz
  • sensitivity: 90.5 dB
  • depth: 2-3/8"
  • grilles included
  • warranty: 1 year
  • MFR # 99616

What's in the box:

  • Two 2-way speakers
  • 2 Grilles
  • 8 Self-tapping screws (#8 x 1-3/16")
  • 8 Speed clips
  • Two Crimpable female quick slides (0.205"/5.2mm)
  • 2 Crimpable female quick slides (0.11"/2.8mm)
  • 2 JL Audio logo badges
  • Owner's Manual
  • Paper template

Customer reviews for JL Audio C2-600X

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4.5 out of 5 stars
51 reviews

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More details on the JL Audio C2-600X

Pat M.

Features & specs

Speaker Size 6
Design 2-way
Tweeter Design Dome
Impedance (Ohms) 4
Tweeter Composition Silk
Woofer Composition Mica-filled Polypropylene
Woofer Surround Butyl rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity (1W at 1 meter) 90.5
Sensitivity at 2.83 volts 93.5
Frequency Response 59 - 22k Hz
Minimum RMS Wattage 15
Maximum RMS Wattage 60
Peak Power Handling (Watts) 225
Top-mount Depth (Inches) 2 3/8
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 4 7/8
Mounting Height (Inches) 0.628
Frame Width 6.21
Frame Length 6.21
The JL Audio C2-600X replaces these items:

Product Research


Woofers: The JL Audio Evolution C2-600x coaxial speakers feature injection-molded, mica-filled polypropylene woofer cones with butyl rubber surrounds. Each woofer has a 1" voice coil on a Kapton Former, a symmetrical roll spider and a Ferrite magnet.

Tweeters: Each coaxial speaker features a ¾" silk dome, ferrofluid-cooled tweeter with a damping neodymium magnet. The edge-driven silk dome tweeter is smooth, detailed (on or off axis), and provides great overall performance. Silk is lightweight and great for high frequency extension and efficiency. It is also designed for durability in the extreme automotive environment.

Grilles: Front-loading protective grilles are included, with black steel mesh and satin silver accents. Electroformed logo nameplates can be positioned on the grilles or elsewhere in the vehicle, according to the needs of the installation.

Mounting: This speaker system is a perfect fit for many Japanese cars that will not accept a 6-3/4 speaker without modification. The basket features three and four-hole patterns that match many factory mounting locations.

Size Classification Note: Crutchfield has traditionally referred to this size speaker as a 6-1/2", while some manufacturers, including JL Audio, call it a 6". The slightly larger speaker that JL Audio refers to as a 6-1/2" (C2-650x) has traditionally been categorized by Crutchfield as a 6-3/4". Please enter your vehicle information to confirm fit.

Power Handling: JL Audio publishes several power specifications for this speaker, 60 watts continuous power handling (RMS), 225 watts peak music power, and 15-100 watts recommended amplifier power (RMS). We've listed the conservative combination of 15-60 watts RMS in the specs table.

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Customer Q&A

3 questions already asked

Why do these speakers sound like there cutting out or fluttering the music at low volume?
jagen  May 28, 2021
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
kristina  May 28, 2021 (Staff)
Do these speakers need a amp?
diego  Nov 19, 2020
4 answers
Need probably not but you will not get what your paying for without one. Im running an alpine power pack 45w i believe. The speakers are clear and loud. If you have no plans of doing an amp get a lesser speaker. Most head units or factory amps only push 13-25w rms. Thats just not enough power.
jared  Nov 22, 2020
I recommend using an aftermarket amp. I'm currently using the JL Audio JD 400/4 amp to power these speakers. Factory car speakers are typically 2-ohm, but these C2-600Xs are 4-ohm speakers. If you use C2-600Xs with only your factory amp, then they'll be only half as loud as your stock speakers. Using an aftermarket amp will unleash their full potential.
exur  Nov 20, 2020
No but they will definitely sound better with an amp
chris  Nov 19, 2020
The do not necessarily need an amp, but could benefit with use of an amp for longevity and sound quality. The specs for power needs are 15 Watts to 100 Watts per channel RMS. So if your aftermarket radio puts out over 15 Watts at the volume you mostly listen to then they should be fine. Most factory radios put out about 10 Watts max. Some may do more now, but be wary of car manufacturer claims of what their radios actually do. If you have a factory amplifier consult with the experts at crutchfield and they will steer you right.
binoy  Nov 19, 2020
What do you power these with?
seth  Jul 19, 2017
2 answers
I have an alpine power pack to my rear set and another power pack to my front components. Supposedly bridged 90w... id say 65w rms real world.
jared  Nov 22, 2020
I've powered these with a JBL GTO 5EZ amp and a JL Audio HD900/5 amp.
jacob  Jul 20, 2017

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