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JL Audio C2-650X

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

20 Reviews | 2 questions - 3 answers

Item #: 136C2650X

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Our take on the JL Audio C2-650X

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.

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

Great sound, I'm still trying to take it easy on them as they have only been in the truck for a few weeks, and it seems like they sound better every day

Tracey, Saluda, VA

What's in the Box:

  • 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

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

JL Audio C2-650X Reviews

Average Customer Review:

20 Reviews

Happy as a tic at a dog show

Written by: Tracey from Saluda, VA on May 6, 2016

2009 Toyota Tacoma
Crutchfield Customer Review (What's this?)

Great sound, I'm still trying to take it easy on them as they have only been in the truck for a few weeks, and it seems like they sound better every day

Pros: Ease of installation, with the adapters and wire leads provided; I think it took longer to take the door panel off and put it back on than it did to install the speakers.

Cons: Haven't had any issues

Great Upgrade

Written by: Eric from Charlotte, NC on April 9, 2016

2015 GMC Acadia
Crutchfield Customer Review (What's this?)

Excellent upgrade to the factory system. Brackets had to be modified for speakers, to fit - but incredible upgrade over the factory speakers. These is a night and day difference between these and the stock speakers.

Pros: Excellent Sound Quality


Great for Rear set in PU truck

Written by: Kevin from Schaumburg, IL on February 8, 2016

2012 Honda Ridgeline
Crutchfield Customer Review (What's this?)

Used for rear set paired with JL Audio C2650 components in front, XD700/5v2 5ch amp, 10TW3-D4 shallow mount sub and Pioneer AVH-4100NEX head unit. These sound great as rear fill. Decent bass response even before I added subwoofer. Blends nicely with subwoofer (crossover set at 80hz or 100hz) Very pleased with sound even at moderately low volume.

Pros: Easy install, Decent bass response. Great sound even at moderately low volume.

Cons: none

Rockin Great Speakers !

Written by: The Builder from Orlando Florida USA on June 17, 2015

Crutchfield Customer Review (What's this?)

Purchased a Kenwood DPX301U CD RADIO from Crutchfiled with some Kenwood KFC-1665S speakers. Well the radio was a huge improvement over the factory Toyota OEM Pioneer in my Scion XB2005. The speakers that I purchase well they sucked compared to the quality of the Kenwood radio. There was no bass response from these speakers at all and they are really designed for use in general use low volume applications at 4ohms. So - I returned the set to Crutchfield and got these units. As usual shipped with mount adapters, wire harness etc. Took about an hour and a half to install (some minor technical difficulties with the Metra 82-8148 Speaker Mounting Brackets supplied hardware) but after a trip to my local hardware store All Good. The Kenwood DPX301U RADIO does have a ton of settings but after setting the Audio Output for these speakers I now have the nice deep bass and treble of that I was use to (but even better) that factory. These speakers are designed to handle a lot of power (Im not using a power amp at all and its plenty for me) Im sure you dudes out there who need to see your teeth rattled can do it with these units. They are JL and these remind me of the TS-6905 Pioneer Speakers days of past. Due to the fact I drive a mini box car and space if very tight these fit with no issue at all. They are well built and I cant complain at all for the performance. The build quality of the speakers themselves are close to PRO Sound quality you cant beat it for the price. JL's for me !


Cons: None

Another good JL product

Written by: JIReady from Georgia on May 12, 2015

Crutchfield Customer Review (What's this?)

I have never sat in my backseat but I assume these are as good as the front JL speakers I installed to match, which seem pretty good.




Written by: Andrew from Texas on March 25, 2015

2005 Scion tC
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 from Florida on 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 from Lansing, MI on January 3, 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 from Indiana on 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 from Alabama on June 2, 2014

2012 Honda Ridgeline
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 from Oakland gardens NY on July 7, 2013

2002 Chevrolet Blazer
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 from Ellijay, GA on March 24, 2013

2012 Jeep Wrangler Unlimited
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 from mount kisco, n.y. on February 2, 2013

2013 GMC Sierra
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 from Westchester, NY on June 11, 2012

2011 Subaru Impreza
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 from Asheville, NC on June 5, 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 from Atlanta, GA on February 27, 2012

2009 Subaru Impreza WRX
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 from Silver Spring, MD on November 22, 2010

1991 Honda Accord LX
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 from Indiana on 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 from Des Moines, IA on April 16, 2010

2008 Chevrolet Express
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 from Hays, KS on 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.




Hands-on research

What's in the box?

Download the JL Audio C2-650X 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.

Q & A

Customer Q&A

2 questions already asked

For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Mar 23, 2015 ]  Staff
All plastic one size fits all bracket. Two sets of spots to screw in speakers depending on which size you get. What I didn't like was for the smaller size it had metal clips to screw through to reinforce the holes but for the larger size there were slots instead of holes and no metal reinforcements for them. Seemed not the best but was free. I plan to reinforce the screws more with some epoxy next time I open my doors to put in dynamat. [ John  May 18, 2014 ]
Hi! I'm not really sure what you are asking. I will be glad to help. What bracket are you referring to? And the what size are you referring to? I out these in a jeep wrangler and used the existing holes and made new ones. Maybe a little more custom than you might want to do. Ask me anything and I will try to answe the best way I know how! [ BRANSON  May 17, 2014 ]

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JL Audio C5-650x

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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