JL Audio C2-650X

Evolution™ C2 Series 6-3/4" 2-way car speakers

Item #: 136C2650X

In Stock

15 Reviews

Free Installation gear for most cars

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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 C2-650X 6-3/4" 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.

Note: JL Audio describes this model as a 6-1/2" speaker. Most manufacturers designate this same frame size as a 6-3/4" speaker. For simplicity's sake we list it as a 6-3/4" speaker.

Priced per pair

Product Highlights:

  • 2-way 6-3/4" speakers (pair)
  • injection-molded mica-filled polypropylene woofer with butyl rubber surround
  • 3/4" silk dome tweeter
  • built-in crossover network
  • 4-ohm impedance
  • power range: 15-100 watts RMS (225 watts peak power)
  • frequency response: 59-22,000 Hz
  • sensitivity: 91 dB
  • depth: 2-9/16"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Why replace your factory speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Hands-on research

What's in the box?

Download owner's manual

  • Two 6-3/4" 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

Features and Specs

Design 2-way
Tweeter Design Dome
Tweeter Composition Silk
Woofer Composition Mica-filled Polypropylene
Woofer Surround Butyl rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity 94 dB at 2.83 volts
91 dB at 1 watt
Frequency Response 59 - 22k Hz
RMS Power Range (Watts) 15-100
Peak Power Handling (Watts) 225
Impedance (Ohms) 4
Top-mount Depth (Inches) 2 9/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 5 5/8

Product Research


Woofers: The JL Audio Evolution C2-650x coaxial speakers feature a 6-3/4 injection-molded, mica-filled polypropylene cone woofer with a butyl rubber surround. Each woofer has a 1.0" voice coil on a Kapton Former, a symmetrical roll spider and a Ferrite magnet. These carefully engineered cones deliver the right combination of stiffness, damping, and off-axis response. The speaker also provides adequate bass, thanks to its ample mechanical clearance, optimized suspension and balanced motor design.

Tweeters: The Evolution C2-650x coaxial speakers feature a 0.75" 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: The Evolution C2-650x coaxial speakers include front-loading protective grilles with a design that combines black steel mesh with satin silver accents. Electroformed logo nameplates can be positioned on the grilles or elsewhere in the vehicle, according to the needs of the installation.

Power Handling: JL Audio lists two power figures in the manual; 60 watts continuous power handling and recommended amp power 15-100 watts RMS. We've listed the RMS power recommendation in the specs table.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

JL Audio C2-650X Reviews

Average Customer Review:

15 reviews
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Written By Andrew, Texas on Wednesday, March 25, 2015

Crutchfield Customer Review (What's this?)

Great sound, easy install. I am so glad that I decided to upgrade from my stock factory speakers.

2012 Jeep Wrangler

Written By Smitty, Florida on Sunday, January 11, 2015

I installed these in the dash of my Wrangler with the base audio system. Crutchfield does not list these as a fit but I'm not sure why. It may be because they are not direct fit. The speaker pods are plenty big enough for them. I placed poly fill in the pods while I had them out. I used the template included to mark and drill four new holes for the speakers. To seal the frame to the pod, I cut the backs off of some XTC speaker baffles that I had laying around. After installing the pods back into the dash, I disconnected the factory tweeters. I experimented with removing the rubber plug from the rear of the pod to vent the enclosure versus sealed. The bass was much tighter and more defined with the plugs installed for a sealed enclosure. This makes the speakers less efficient but I am planning to add another set to the soundbar and install an amplifier. Using the fader control to compare the OEM speakers to the JL Audio speakers displayed just how much better these are over the OEM speakers. They do not play quite as loud but they sound so much better that I am listening to the fronts only. The tweeters are very detailed allowing you to clearly hear the instrument instead of the general "hiss" or "ting" sound that low end mylar type tweeters generally produce. Listening to speakers like this on factory stereos usually generates lower reviews because of the low power and OEM equalization.

Pros: Clear and tight midbass, with excellent vocal quality. Tweeters are smooth and detailed while not being harsh or overly bright.

Cons: I wish they had a foam sealing ring.

Rear fill speakers

Written By Chris, Lansing, MI on Saturday, January 03, 2015

Crutchfield Customer Review (What's this?)

Speakers were used as rear fill in a 2014 Subaru Impreza. Spacers, baffles, and fast rings were used as well in the install. The speakers do sound nice. I installed the speakers and ran them off the head unit for a couple of days before I installed the amp and C5-650s. They really do sound nice without the amp. They work awesome as the rear fill with the C5-650s.

JL Audio C2-650X

Written By Jeff, Indiana on Monday, November 17, 2014

Crutchfield Customer Review (What's this?)

Nice upgrade from the polks

Pros: Crisp and clear

Cons: None

Sounds Great!

Written By Anonymous, Alabama on Monday, June 02, 2014

Crutchfield Customer Review (What's this?)

Could have spent more money , but these were a perfect fit for my Honda Ridgline! Highly recommend get the Dynamat Speaker Kit in addition when installing. Makes a huge difference. Very Pleased with Crutchfield and JL Audio

Pleasantly suprised

Written By cuznsteve, Oakland gardens NY on Sunday, July 07, 2013

Crutchfield Customer Review (What's this?)

Really outstanding sounds, I took a leap of faith in spending this much but I figured maybe this would be the last time. (I had installed 3 cars already and they ended upo being sold) This ones is a keeper , so I went sort of all the way , partially.

Pros: Couldn't ask for anything more.

Cons: none

Great sounding speakers!

Written By Leakgator, Ellijay, GA on Sunday, March 24, 2013

Crutchfield Customer Review (What's this?)

I bought these speakers for the roll bar in my 2012 jeep wrangler unlimited. They fit, but they don't fit the existing screw holes. You have to make your own screw holes. I bought them for filler, because I have the JL Audio c5 components in the front. I am powering them off a JL Audio HD 900/5. I was pleasantly surprised with how great they sound. Very clear and nice and punchy. Very good detail.

Pros: Sound quality

Cons: None do far

big improvement

Written By michael b, mount kisco, n.y. on Saturday, February 02, 2013

Crutchfield Customer Review (What's this?)

brand new 2013 sierra extra cab. ripped out the speakers and what a difference! awesome sound. just the speakers were changed and such a big improvement.

Pros: better sound

Cons: you forget what crappy speakers sound like

Nice Sound that doesn't Break the Bank

Written By LuisV, Westchester, NY on Monday, June 11, 2012

Crutchfield Customer Review (What's this?)

For the price you can't go wrong with these speakers. They handle a good amount of power and sound better than their price point suggests. These were purchased as rear fill and to complement a set of JL Audio C2650 component speakers. Their mid to low end sound very similar to the components; however, the upper registers sound slightly different to me. Although there is a slight sonic difference, I would still recommend them to friends and family as the ever so slight sound difference is more than likely due to the lower tweeter mount.

Pros: Great price point, can handle plenty of power and sound better than their price point would suggest.

Cons: Could possibly benefit from an angled tweeter mount.


Written By ashevillain, Asheville, NC on Tuesday, June 05, 2012

Crutchfield Customer Review (What's this?)

These speakers are incredible. I purchased 2 pairs to install in my 2003 Civic EX Sedan. Crutchfield doesn't list these as compatible with this vehicle but I always like a good challenge.

For the front doors the mounting depth (magnet and basket) is too deep for the speaker wells. I used some 3rd party speaker adapters and also had to add some rubber grommets to get a bit more spacing.

In the rear deck the mounting height (tweeter protrusion plus speaker adapter) is listed as the roadblock. Well, Crutchfield sent the wrong adapters to begin with and the 3rd party adapters I had didn't line up with the holes either. So I did an easy workaround. Mounted the speakers directly to the factory mounting holes via speed clips!

In both cases I also used some Dynamat to deaden any noise (also gave a tiny bit of spacing between the sheet metal and the speaker). The Dynamat cleaned up the sound immensely. I paired these speakers with a Kenwood KDC-X496, which outputs 22w RMS. In combination with these speakers that are closer to 3.5 ohm actual, this system outputs quite a bit of sound. In my opinion this is the best sound I've ever heard out of a system with no sub and no external amplification!

It depends on the CD but the one quality that I could possibly see people having a problem with these speakers is if you are listening to anything with a very bright sound you will need to attenuate the treble a bit.

Pros: Incredible sound.

Cons: Have to do some minor extra work to install in 2003 Civic Sedan.

Love em!

Written By StevieP, Atlanta, GA on Monday, February 27, 2012

Crutchfield Customer Review (What's this?)

Fitted to a 2009 WRX 5dr hatch. Installed these matched with the factory base stereo and they sounded awful but that was to be expected as they were under powered. I then swapped in the upgraded factory stereo that puts out more power and they really came alive and sound awesome. I plan on getting an external amp to run these and hope that wakes them up even more.

Price on Crutchfield was a bit expensive compared to other online retailers, but after you figure in the free shipping, free mounting rings, and wiring adapters you come out pretty much even.

Pros: Sound great

Love These Coaxials

Written By DwayneG, Silver Spring, MD on Monday, November 22, 2010

Crutchfield Customer Review (What's this?)

JL Audio has the best coaxials out there. I got these JL Audio C2-650x coaxials installed in the rear deck along with the JL Audio C2-650 component speakers installed in the front and they sound amazing. Well worth the money. I'm now a JL Audio fan for life.

Best coaxial

Written By James, Indiana on Saturday, June 26, 2010

Crutchfield Customer Review (What's this?)

Fit my 2010 Tundra with scosche speaker adapters even though not listed as fitting by crutchfield. Great sound. Smooth sounding tweeter. The woofer and tweeter are well balanced. Handle high power. Have mine running off a JL Audio 900/5 HD amp and love the setup. Can't go wrong for the money.

very happy with results

Written By Jeff, Des Moines, IA on Friday, April 16, 2010

Crutchfield Customer Review (What's this?)

I purchased these speakers to replace the factory GM speakers in the door of my RV that is built on a Chevy Express 3500 chassis. The dash stereo has these two speakers and that is it. I am very happy with these speakers. They fit precisely, just as Crutchfield's tool said they would. The speaker wiring harness was a nice touch from Crutchfield, allowing me to easily switch these out without modifying the wiring at all.

There is a very large difference between the factory GM speaker and these. The factory speakers were basically giving me mid-range and that was it. These speakers have much greater range. I can hear the bass now where before it didn't even come out of the factory GM speakers. As I cycle through the EQ settings of my JVC in-dash stereo, I can actually hear the changes. Before, as I cycled through the EQ settings with the factory speakers I basically heard very little change.

The only thing that I wonder is if these were worth the price. There are many other 6.75" speakers available that also get high reviews for $80, $100, $125, etc. I wonder if I would notice any difference between them and these? If I forget about the price that I paid for these, then I am very happy.


Written By MrCrispie, Hays, KS on Wednesday, January 20, 2010

I am a self proclaimed audiophile with medium-budget tastes. I like bang for my dollar. I started out with full Alpine Type-S speakers in my Mitsubishi Eclipse, and was pleased with the full-spectrum response i received from them for months. I am still using the Alpine MRP-F300 4 channel (50W X 4) amp with my new JL C2-650x speakers. They are in the doors as well as in the back. When I installed them, I installed one speaker in the back and left one Alpine Type S in the other side, set my Headunit to isolate each speaker, to hear the difference. Night and day. I am a stickler for midbass response and mellow tweeters that don't pierce my ears. At high volumes, there is no distortion across the board (heavy metal, hip hop, rap). I know people are wondering how these things perform across all genres of music...I have played them to their fullest extent (after the break in 4 hours) and cannot make these things budge from sounding absolutely phenomenal. The midbass surprised me. They hit clean, distortion free, and hard. If you are looking for a speaker that shines across all volumes, is clear, exceptionally clear, very very mellow flat tweeter response (no shrieks, no brightness at all) , look no further. JL has produced some of the most amazing sounding speakers in its C2 line. I am hard to impress. These impressed me.

Get everything you’ll need to enjoy your new JL Audio C2-650X

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
You'll need speaker wire to connect your speakers to your amp.
Keep your speakers clean and dry. They compress to fit behind your speakers.
These speaker connectors are handy if you're running new speaker wire or if your speakers have oversized terminals.
The right tools will help keep your installation simple and clean.
Dynamat 10415 Xtreme Speaker Kit

Dynamat 10415 Xtreme Speaker Kit

Two 10-in. x 10-in. Sheets

Item #: 15410415


Add to Cart
Dynamat 10435 Xtreme Door Kit

Dynamat 10435 Xtreme Door Kit

With four 12" x 36" sheets — covers two doors

Item #: 15410435


Add to Cart
Dynamat SuperLite Tri-Pak

Dynamat SuperLite Tri-Pak

Triple package — 3 sheets, 12 square feet (Model #10612)

Item #: 15410612


Add to Cart
T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1


T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1


Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B


Boom Mat 6-3/4

Boom Mat 6-3/4" Speaker Baffles

Protect your speakers
Regular and slim-line sizes (Slim-line: 3" depth)

Item #: 696B050341


Add to Cart
XTC 6-3/4

XTC 6-3/4" Speaker Baffles

Protect your speakers (Slim-line: 3-3/8" depth)

Item #: 237XT62


Add to Cart
Metra Female Quick Slides

Metra Female Quick Slides

An assortment of female quick slide connectors for connecting to speaker terminals

Item #: 120FQS10PK


Metra Crimp Tool and Connectors

Metra Crimp Tool and Connectors

Package contains crimp tool and over 150 pieces

Item #: 120CRIMPKT


Add to Cart
S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

Item #: 18119100


Add to Cart
S&G Tool Aid 87615

S&G Tool Aid 87615

Window and Door Clip Removal Tool

Item #: 18187615


S&G Tool Aid 87650

S&G Tool Aid 87650

Door Trim and Panel Removal Tool

Item #: 18187650


Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6NGL


Add to Cart
Skewdriver Pro SPK4042

Skewdriver Pro SPK4042

Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)

Item #: 180SPK4042


Add to Cart
Spec Tools SQR-200a Squeeze Wrench

Spec Tools SQR-200a Squeeze Wrench

Narrow space ratchet kit with 18 sockets

Item #: 180SQR200A


Add to Cart
Install Bay IB35400

Install Bay IB35400

Premium door panel and trim tool

Item #: 12035400

Add to Cart
Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6LNGL


Add to Cart
Install Bay 3320

Install Bay 3320

Auto-ranging digital multimeter

Item #: 1203320

Add to Cart
Posi-Products™ Car Speaker Connectors

Posi-Products™ Car Speaker Connectors

8 connectors for installing car speakers

Item #: 669PP502


Add to Cart
DEI Heat Shrink Tubing

DEI Heat Shrink Tubing

Black 4-foot length (Assortment)

Item #: 696010839


Add to Cart

Looking for more? Check out the next model in this lineup.

JL Audio C5-650x

JL Audio C5-650x

Low Stock


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Play louder with more bass

The JL Audio C5-650x offers these features:

better bass response

higher power capabilities

external 2-way crossovers with 4 tweeter and 3 midrange levels