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JL Audio C2-350x

Evolution™ C2 Series 3-1/2" 2-way car speakers

39 Reviews | 1 question - 2 answers

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Item # 136C2350X

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825 Gardens Blvd

109 South Carlton

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Our take on the JL Audio C2-350x

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 C2-350X 3-1/2" speakers feature rugged polypropylene cones that can handle plenty of power without distortion, so you get full-bodied tones. 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 ensure that the tweeters and woofers reproduce only the frequencies that they were designed to handle, so your tunes play smoothly across the whole musical spectrum. Grilles are not included — factory grilles are appropriate for most installations.

Priced per pair

Product Highlights:

  • 2-way 3-1/2" speakers (pair)
  • injection-molded mica-filled polypropylene woofer with polyether foam surround
  • 3/4" silk dome tweeter
  • built-in crossover network
  • 4-ohm impedance
  • power range: 10-40 watts RMS (75 watts peak power)
  • frequency response: 130-22,000 Hz
  • sensitivity: 83 dB
  • depth: 1-9/16"
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's in the Box:

  • Two 3-1/2" 2-way speakers
  • 4 Self-tapping screws (#8 x 1")
  • 4 Speed clips
  • Two crimpable female quick slides (0.205"/5.2mm)
  • Two crimpable female quick slides (0.11"/2.8mm)
  • Owner's Manual

Put these in my 2015 Ram 1500 Crew Cab...def go with the 600hz bass blockers...300hz is wayyyy too low and distortion comes thru...otherwise they sound incredible and are alot louder than the factory dash speakers...def worth the upgrade.

Miles, NJ


JL Audio C2-350x Reviews

Average Customer Review(s):

(39 Reviews)

Great speakers with bass blockers for Ram

Miles from NJ on 12/20/2017

2015 Ram 1500
Crutchfield Customer Review (What's this?)

Put these in my 2015 Ram 1500 Crew Cab...def go with the 600hz bass blockers...300hz is wayyyy too low and distortion comes thru...otherwise they sound incredible and are alot louder than the factory dash speakers...def worth the upgrade.

Pros: Incredible sound

Cons: Distortion without bass blockers in Ram pickup...easy fix

JL Audio C2-350x

Anonymous from Ellijay, GA on 11/24/2017

2007 Dodge Ram 3500
Crutchfield Customer Review (What's this?)

Tiny speaker but big sound. I have always hated 3.5" speakers. The sound has been that great. They were always harsh and no mids until these. These speakers are loud and have a great sound. They changed my opinion of 3.5" speakers.



Great speakers but needs EQing in the RAM pickup...

Tony from San Diego, CA on 6/12/2017

2016 Ram 1500
Crutchfield Customer Review (What's this?)

The stock dash speakers in the 2016 RAM are crossed over at 9KHz with a 2.2uF, and they are 8 ohms. So the stock speakers are just tweeters! Putting these 4 ohm full range speakers in their place will about double the acoustic volume and reproduce all frequencies from about 120Hz on up through 20KHz. I put a 220uF cap on them which crosses them over at about 180Hz to keep the bass from blowing them. These speakers are very efficient and sound very bright bouncing off the windshield. Lucky for me I installed the Helix/Match PP62DSP before the speaker change and had to EQ the top end drastically, especially in the 3K to 10K range, which the PP62DSP does very well. It's a bit complicated even for a pro musician/sound technician like me, but once you use it couple times it gets easier. I'm upgrading the door speakers next and of course will have to re-EQ the system again. I won't quit until it sounds just right! BTW, I wish Crutchfield sold the Match subwoofers. I bought the PP8EQ from eBay and had it shipped all the way from Austria....

Pros: Very efficient, good power handling

Cons: Needs drastic EQ-ing in the RAM trucks, unless you like ear-piercing highs

JL Audio C2-350x

Thomas from Tacoma, WA on 3/19/2017

2012 Ram 1500
Crutchfield Customer Review (What's this?)

Phenomenal ultra clear highs.

Pros: Highs

Cons: None

JL Audio C2-350x

Anonymous from Fremont, OH on 3/7/2017

2013 Ram 1500
Crutchfield Customer Review (What's this?)

Excellent sound! Make sure to use a set of bass blockers though as these popped and cracked until I put some in line. Used 600hz blockers and now everything is great.



Excellent speakers even without an amp

Anonymous from Marlboro, NJ on 11/28/2016

Crutchfield Customer Review (What's this?)

Very happy with these in the dash. Worked very well with a 14 w aftermarket HU. A little on the bright side but not fatiguing. If you are using Bass blockers I think you are better off with 300Hz rather than the recommended 600 Hz. Did not try them without Bass blockers (the built in are 120 Hz I believe). I paired them with the JL 690tx in the doors (those needed an amp/powerpack) and a pioneer 380 BHS and the sound is great

Pros: Great sound, beautiful clean detailed sound reproduction even with 14 w RMS

Cons: Not a con but figure out what Bass blockers work best, for me 300 Hz worked great, not sure I would go lower, definitely not higher. Depending on your setup you may not need Bass blockers

Quite a kick

Mike from Land O Lakes, FL on 11/6/2016

2012 Ram 1500
Crutchfield Customer Review (What's this?)

Great sound for such small speakers. Very happy

Pros: Clear rich sound Good punch

Cons: None

Amazing sound

Matthew from Oklahoma city on 10/31/2016

2014 Ram 1500
Crutchfield Customer Review (What's this?)

These speakers are awesome. Researched speakers for a while to replace the crap ones in my truck (14 ram) These speakers are so much more clear and louder than the stock ones it's not funny. To give you an idea of how much better they are. I work evenings and when I get off late at night I like to drive home with the windows down. Well for me to be able to hear the music while driving 70, I have to turn the volume to max which is 38. After replacing my 2 dash speakers with these. I only have to turn the volume to 24. This how much louder and clear they are. I wish I had not waited so long to upgrade these speakers. Now the door speakers are next.

Pros: Amazing sound. Easy install

Cons: Nothing

JL Audio C2-350x

Anonymous from Crawfordsville, IN on 8/16/2016

Crutchfield Customer Review (What's this?)

Great customer service nice price speaker sound great thanks!!!!



JL Audio C2-350x

Anonymous from Killeen, TX on 8/14/2016

2014 Ram 1500
Crutchfield Customer Review (What's this?)

Amazing sound! A great improvement over the stock dash speakers. I recommend these to everyone I see.



Very good sounding speaker

Keith T from Baxter, MN on 7/12/2016

2016 Ram 3500
Crutchfield Customer Review (What's this?)

I ordered these speakers to replace the factory Alpine speakers in the front corners. They cleaned up the sound considerably exposing many more high notes. I can only imagine how good they would sound with some additional power.



Fantastic Sound Quality

Kevin from Sherman Oaks, CA on 6/24/2016

2013 Lexus CT200H
Crutchfield Customer Review (What's this?)

I am in love with these speakers. They are a huge improvement over the factory dash speakers I had and these have really helped music come to life in my car. I hear a lot of extra details in songs that I didn't know where there. Vocal harmonies, guitars, cymbals and other cool effects really showcase now.

Pros: Sound Quality, Letting me hear the finer details.

Cons: Nothing

JL Audio C2-350x

Brian from Roanoke, VA on 5/22/2016

1985 Toyota Celica
Crutchfield Customer Review (What's this?)

This was a "modifies fit" but it bolted right in with no clearance issues. The sound is crisp and clear, and has fantastic output for such a tiny speaker, It could easily be powered by an amp to give it more punch

Pros: Big Sound, tiny speaker, awesome clarity, big bang for the buck


Powerful little speaker

Kerry M from PA on 5/12/2016

2013 Toyota FJ Cruiser
Crutchfield Customer Review (What's this?)

I ordered the JL C2-350x to replace the factory dash speakers in my 2013 FJ cruiser based on the fact that there were two other reviews by FJ owners. Crutchfield said that the speakers would not fit my vehicle and they were partially correct. I had to take out the factory speaker and mounting bracket but was able to just attach the new speakers from there. These speakers are great for how little they are and overall are pretty cost effective. I would highly recommend them to someone interested in buying a smaller speaker.

Pros: Great sound / decent price

Cons: Not a perfect fit (I was warned by Crutchfield)

Absolutely amazing upgrade.

KC from oakes, ND on 3/20/2016

2015 Ram 2500
Crutchfield Customer Review (What's this?)

I installed these in the dash on my 2016 2500 bighorn. They really cleared up the mids and highs. These along with a 8" JL sub made the sound better then my 15 with the alpine premium sound. Installation. Was a breeze with crutch fields included adapters.

Pros: Clear sound, easy installation, direct fit.

Cons: None

JL Audio C2-350x

james from easton,pa on 3/13/2016

2015 Ram 1500
Crutchfield Customer Review (What's this?)

quality speaker, exact fit for my vehicle

Pros: clear crisp sound


Awesome Little Speakers

Rob from Florida on 12/8/2015

Crutchfield Customer Review (What's this?)

Awesome speakers! Installed it in my 14 FJ Cruiser and replaced the cheap factory dash speakers. What a big difference in sound and fitment was almost perfect.



JL Audio C2-350x

Mike from Locust grove ga on 11/10/2015

2014 Ram 1500
Crutchfield Customer Review (What's this?)

Sound good in my ram 1500.




TruexJ from Oak harbor wa on 10/13/2015

2014 Toyota Camry
Crutchfield Customer Review (What's this?)

Jl audio c2 350z I put these in my 2014 toyota camry se. As dash speakers. The stock ones are garage!

Pros: Good speakers , Way better

Cons: No cons.

Sound ok

Travis L from Florida on 9/15/2015

1983 Chevrolet C Series
Crutchfield Customer Review (What's this?)

I chose JL audio because I Thought they were made in Florida. Wrong! As soon as I opened the box, there it was. The sticker that says made in China. I was pretty ticked actually. Anyway, they sound ok I guess. And I had to notch the left side of my dash (83 C-10) for them to fit.

Pros: Sound ok

Cons: Made in China still has to modify my dash for them to fit.

dash corner speakers

Perry G. from Maryland on 7/29/2015

2013 Ram 1500
Crutchfield Customer Review (What's this?)

These little JL Audio 3 1/2 inch dash corner speakers make a big difference in the sound quality over stock in my 2013 Dodge Ram

Pros: Improved sound performance, very easy installation

Cons: none

JL Audio C2-350x

RA from Florida on 7/26/2015

2011 Toyota FJ Cruiser
Crutchfield Customer Review (What's this?)

Good quality sound for a small speaker. Handles high frequencies well. Fits Toyota FJ's dash & C-pillar factory mount locations.

Pros: Solid Construction & good sound.


Great little speaker

Chad from Phoenix, Az on 6/8/2015

2012 Ram 1500
Crutchfield Customer Review (What's this?)

I installed these in the dash of my 12 ram 1500. Thanks to Crutchfield's free install goodies it a was simple install. The speaker are a huge upgrading the factory stuff. The are really clear and clean. Not bright, just clean. I used a 600hz filter to limit the bass which I highly recommend. I gave these four stars for that reason. JL should have used a higher filter from the start.

Pros: Perfect fit Clear sound Decent price

Cons: Factory bass limit too low needs a higher filter

Small speakers, big sound!

Joe from Tornado, WV on 2/18/2015

2014 Ram 2500
Crutchfield Customer Review (What's this?)

Replaced the dash speakers in my 2014 Ram 2500 with these. Massive improvement in sound, very clear highs! I added bass blockers to keep the real low bass from distorting the sound in these.




Jim from El Dorado Hills ca on 1/27/2015

2013 Ram 2500
Crutchfield Customer Review (What's this?)

Installed in a 2013 Ram 2500, they fit and sound great.



JL Audio C2-350x

Ace from United States-AZ on 1/13/2015

2014 Ram 1500
Crutchfield Customer Review (What's this?)

Bought a pair of these dash speakers for my 2014 Ram truck. These speakers sound way too superb for my other 4-door (Kenwood)speakers. Installations was 20 mins for me.



JL Audio C2-350.

D Stevens from Surprise, Arizona on 1/8/2015

1985 Chevrolet C Series
Crutchfield Customer Review (What's this?)

The speakers sound amazing for the size.

Pros: The were a direct fit withering adapters.


Little guy, big sound

K9black from Florida on 12/29/2014

2014 Dodge Challenger
Crutchfield Customer Review (What's this?)

I had installed a W7 and loved it. I had my big bass... but factory speakers. I gave these a shot, unamplified. These little things are fantastic. Gave me the high end I needed without needing an amplifier. Very happy I pulled the trigger on these. They fit perfectly in the Dodge Challenger 3.5" dash speakers, took about 10 minutes to install.

Pros: Gives a strong, clear high end

Cons: None

Excellent sound easy install

Phil from Jacksonville, FL on 8/12/2014

2005 Dodge Ram 1500 SRT 10
Crutchfield Customer Review (What's this?)

Sound quality is outstanding. Highs are clear and mids sound great as well.

Pros: Speakers overpower wind noise, which is loud in my truck.

Cons: None

JL Audio C2-350x

Douglass H from California on 7/20/2014

2015 Ram 1500
Crutchfield Customer Review (What's this?)

I installed these jl speakers after having installed the Kicker 40CS354 in my 2012 Ram 1500. The JL speakers seem to be in balance with the rest of the stock speaker system. Comparing them with the Kicker speakers I would say the Kicker speaker was a little to bright, and a little dominate to the rest of the system. Both speakers were used with the Pioneer 4000-NEX. WIth the kicker I was constantly chasing sound settings with the eq, but not with the JL. I would recommend spending the extra money and getting the JL.

Pros: Sounds Great, In balance with the rest of the system, & not having to constantly chase sound settings.

Cons: None

powerful little replacement

Bruce from San Francisco, CA on 6/10/2014

2012 Ram 1500
Crutchfield Customer Review (What's this?)

Gotta say - I was shocked at the weight when I unboxed them (shocked in a good way). These tiny speakers live up to their brand in sound production. I'm very happy I put these in place in my '12 Ram 4-door.



Jl C2-350x

sandy from Doylestown PA on 1/22/2014

1983 Ford Thunderbird
Crutchfield Customer Review (What's this?)

I Drive a 84 ford Thunderbird turbo coupe. I run an 2013 alpine head-unit , polk mm series 5x7 in the rear deck, alpine 500 watt mono amp for my JL audio sealed W3 in the trunk. I needed to purchase a set of speakers for the front dash of my car, my car is old so the dash is flat and the speakers are set into the dash and close to the windshield do i needed speakers that would be able to play loud enough to bounce off the glass and still be able to blend with the rest of the system.These speakers definitely do that they can play loud with nothing but the head-units power and the highs are not to bright and overall the sound is great. good bass response for size, and i trust the JL build quality. speaker looks nice and i love the rubber cover on the magnets. old car so install was kind of tricky but would have been so with any speaker.

Pros: great sound, not bright at high volume, handle volume with head-unit power. good looking speaker.

Cons: that these speakers don't bump as hard as my JL Sub :P


Ed from Virginia Beach, VA on 7/6/2013

1989 Dodge D Series
Crutchfield Customer Review (What's this?)

I put these in the dash of my 89 W150 and they are much louder than I expected. My A/C is 2-55s (that's 2 windows down at 55 MPH if you never heard it) and my truck is not quiet, until I can get an amp for the door and behind the seat speakers, these are the speakers I hear the most for vocals and highs. When my A/C is cranking I hear them good enough and after a month or so they still sound fine. If I were the late Mr. Ebert and the speakers were a movie they would get two thumbs up!

Pros: Fit my truck even though website said would not fit, louder and clearer than expected

Cons: none, unless you want them to sound like 61/2"s

Great for what it is...

Anonymous from New york on 12/14/2012

With proper crossover points and being smart enough to know this wont play low you will be impressed... I have the mid crossed at 215 with a 12db slope in the pillars- I cut the cap on the tweeter and am running them active on axis... A bump on everything 8k and up was needed for sparkle or shimmer. Bottom line with a real Midbass for the price it's a win.

Pros: Clean uncolored tonally

Cons: Even with a high crossover point they don't get all that loud- loud enough for most but I'm a fan of 120+db sprints. Going to try to bump the the crossover for daily use.

not impressed

josh from mobile al on 6/27/2012

Crutchfield Customer Review (What's this?)

I give it 3 stars because it is loud but not crisp and clean like every other review, which is a big reason i went with these the right blew after 3 days...i just got the infinity 3002 hope they are better

Pros: Jl audio

Cons: Not high grade jl audio equipment

Best one on the market!!

Jmz from Fort worth, TX on 5/5/2012

Replaced the stock 3.5" in my 2012 Tundra. The SQ is amazing compared to stock and will compliment any system. Well worth the $$.

Pros: Crisp highs and extre,ely clear output.

Cons: None.

Much Better Sound

Chris R. from Boston, MA on 3/10/2011

2010 Mazda CX-9
Crutchfield Customer Review (What's this?)

Just installed these in my 2010 Mazda CX-9 GT. They installed in about 30 minutes, and the quality is much better compared to the stock six speaker stereo dash speakers with much more refined and detailed highs. I noticed after extended listening less fatigue compared to the stock set. I Highly recommend these as a quick, easy, quality, set of replacement dash speakers.



Amazing sound

steve from Petaluma, CA on 10/29/2010

I put these in the dash on my 1st gen Scion XB. What a difference. Completely transformed the sound in my car. Brighter, richer, fuller sound.



JL C2 350

Nick from Ann Arbor, MI on 12/8/2009

These are great sounding for 3 1/2" speakers. The magnet is huge compared to the stock 3 1/2"s in my 2007 Grand Cherokee. It says they don't fit in my car but I installed them anyway and the only thing is they push a little on the grill but other than that they fit fine. Overall great speakers if you are looking to replace factory ones.




Hands-on research

Features and Specs

Speaker Size 3 1/2
Design 2-way
Tweeter Design Dome
Impedance (Ohms) 4
Tweeter Composition Silk
Woofer Composition Mica-filled Polypropylene
Woofer Surround Polyether Foam
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity (1W at 1 meter) 83
Sensitivity at 2.83 volts 86
Frequency Response 130 - 22k Hz
Minimum RMS Wattage 10
Maximum RMS Wattage 40
Peak Power Handling (Watts) 75
Top-mount Depth (Inches) 1 9/16
Bottom-mount Depth (Inches) 1 11/16
Cutout Diameter or Length (inches) 3 3/16

Product Research


Woofers: The JL Audio Evolution C2-350x coaxial speakers feature a 3-1/2 injection-molded, mica-filled polypropylene cone woofer with a polyether foam surround. The woofer features a 0.75" 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 good mid-bass (by 3-1/2 standards), thanks to its mechanical clearance, optimized suspension and balanced motor design.

Tweeters: Each C2-350x features 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.

Power Handling: JL Audio lists two power figures in the manual; 25 watts continuous power handling and recommended amp power 10-40 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

1 question already asked

Mine fit in the factory screw holes but I ended up using the mounting brackets provided for a more snug fit. This is for he front dash of a 1984 turbocoupe [ Alessandro  May 24, 2015 ]
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. [ Jeff  May 24, 2015 ]  Staff