JL Audio C2-350x

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

Item #: 136C2350X

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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 C2-350X 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

Hands-on research

What's in the box?

Download owner's manual

  • 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

Features and Specs

Design 2-way
Tweeter Design Dome
Tweeter Composition Silk
Woofer Composition Mica-filled Polypropylene
Woofer Surround Polyether Foam
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity 86 dB at 2.83 volts
83 dB at 1 watt
Frequency Response 130 - 22k Hz
RMS Power Range (Watts) 10-40
Peak Power Handling (Watts) 75
Impedance (Ohms) 4
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 open the box, verify contents, 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 C2-350x Reviews

Average Customer Review:

15 reviews
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Written By Jim, El Dorado Hills ca on Tuesday, January 27, 2015

Crutchfield Customer Review (What's this?)

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

JL Audio C2-350x

Written By Ace, United States-AZ on Tuesday, January 13, 2015

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.

Written By D Stevens, Surprise, Arizona on Thursday, January 08, 2015

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

Written By K9black, Florida on Monday, December 29, 2014

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

Written By Phil, Jacksonville, FL on Tuesday, August 12, 2014

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

Written By Douglass H, California on Sunday, July 20, 2014

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

Written By Bruce, San Francisco, CA on Tuesday, June 10, 2014

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

Written By sandy, Doylestown PA on Wednesday, January 22, 2014

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


Written By Ed, Virginia Beach, VA on Saturday, July 06, 2013

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...

Written By Anonymous, New york on Friday, December 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

Written By josh, mobile al on Wednesday, June 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!!

Written By Jmz, Fort worth, TX on Saturday, May 05, 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

Written By Chris R., Boston, MA on Thursday, March 10, 2011

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

Written By steve, Petaluma, CA on Friday, October 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

Written By Nick, Ann Arbor, MI on Tuesday, December 08, 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.

Get everything you’ll need to enjoy your new JL Audio C2-350x

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
You may need speaker wire to connect your speakers to your amp or receiver.
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.
If your stereo doesn't cut the deep bass from your full-range speakers, a set of bass blockers can help prevent distortion and give you cleaner bass too.
Dynamat 10415 Xtreme Speaker Kit

Dynamat 10415 Xtreme Speaker Kit

Two 10-in. x 10-in. Sheets

Item #: 15410415


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Dynamat 10435 Xtreme Door Kit

Dynamat 10435 Xtreme Door Kit

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

Item #: 15410435


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Dynamat SuperLite Tri-Pak

Dynamat SuperLite Tri-Pak

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

Item #: 15410612


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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


XTC 3-1/2

XTC 3-1/2" Speaker Baffles

Protect your speakers (3-1/4" depth)

Item #: 237XT30


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


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S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

Item #: 18119100


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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


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Spec Tools SQR-200a Squeeze Wrench

Spec Tools SQR-200a Squeeze Wrench

Narrow space ratchet kit with 18 sockets

Item #: 180SQR200A


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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


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Bass Blockers

Bass Blockers

Pairs (800 Hz cut-off)

Item #: 127BB800A2


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