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JL Audio C2-525 Evolution™ C2 Series 5-1/4" component speaker system

Item # 136C2525

I've installed enough car speakers to know that if you're going through the effort of taking off your door panels...

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I've installed enough car speakers to know that if you're going through the effort of taking off your door panels...

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7 questions - 11 answers

Item # 136C2525

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Deeply discounted installation gear

$329.99 -$30.00 Price break
$299.99

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About the JL Audio C2-525

Alexander H.

Rugged components

I've installed enough car speakers to know that if you're going through the effort of taking off your door panels and creating tweeter locations, you'll want to choose a well-built speaker system that's going to live a long life in your car. Well, you've landed on the right page — this JL Audio C2-525 component speaker system is about as sturdily built and smooth-sounding as it gets for the price.

Rugged components

I've installed enough car speakers to know that if you're going through the effort of taking off your door panels and creating tweeter locations, you'll want to choose a well-built speaker system that's going to live a long life in your car. Well, you've landed on the right page — this JL Audio C2-525 component speaker system is about as sturdily built and smooth-sounding as it gets for the price.

Powerful woofers for satisfying sound

Framed by a stamped steel basket, the 5-1/4" mineral-filled polypropylene woofer delivers the low frequencies reliably play after play, giving a solid foundation to your favorite music. The butyl rubber surround supports a cone that's designed for extra excursion, giving extended low-frequency response. 

Silk tweeters and versatile crossover networks

The C2 3/4" silk dome tweeters gracefully handle the high-frequencies, broadcasting crisp musical detail evenly and without harshness. JL Audio includes surface- and flush-mount hardware so you'll be able to install the tweeters in the best possible location in your vehicle. Separate crossovers use premium components to direct the signal flow to your woofers and tweeters, and you can select from the three levels of tweeter attenuation to match the speaker system to your listening environment.

Installation note: You'll need a pair of our universal backstraps to install the tweeters in the factory locations.

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Product highlights:

  • component speaker system includes two 5-1/4" woofers, 2 tweeters, two external crossovers, and two woofer grilles
  • mineral-filled polypropylene woofer with butyl rubber surround
  • 2-way external crossover with adjustments for coaxial or separate tweeter placement, and 4-position tweeter level
  • 3/4" silk dome tweeter
  • tweeter mounting gear included
  • frequency response: 63-22,000 Hz
  • handles up to 60 watts RMS (225 watts peak power)
  • sensitivity: 89 dB
  • woofer mounting depth: 2-1/2"
  • grilles included
  • warranty: 1 year
  • MFR # 99620

What's in the box:

  • 2 C2-525cw Woofers
  • 2 C2-075ct Tweeters (with 6" wires attached)
  • 2 C2-525-XO Crossovers
  • 2 Woofer grilles
  • 2 Self-adhesive JL Audio badges
  • 2 Flush mount tweeter housings
  • 2 Surface mount tweeter housings
  • 2 Metal spring clips for tweeter fixtures
  • 2 M4x30mm Pan-head machine screws
  • 2 Crimp-on 0.187" Male quick slides
  • 2 Crimp-on 0.110" Male quick slides
  • 2 Crimp-on 0.205" Female quick slides
  • 2 Crimp-on 0.110" Female quick slides
  • Four 7/8" Flat head self-tapping screws
  • Twelve 1-1/8" Pan head self-tapping screws
  • 8 Speed clips
  • 12 Crimp-on spade connectors (0.25" wide)
  • Owner's Manual
  • Woofer cutout template

Customer reviews for JL Audio C2-525

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More details on the JL Audio C2-525

Pat M.

Features & specs

General
Speaker Size 5 1/4
Design 2-way
Tweeter Design 3/4" Dome
Impedance (Ohms) 4
Tweeter Composition Silk
Woofer Composition Mica-filled Polypropylene
Woofer Surround Butyl Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) 89
Sensitivity at 2.83 volts 92
Frequency Response 63 - 22k Hz
Minimum RMS Wattage 15
Maximum RMS Wattage 60
Peak Power Handling (Watts) 225
Top-mount Depth (Inches) 2 9/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 4 9/16
Mounting Height (Inches) 0.213
Frame Width 5.204
Frame Length 5.204

Product Research

Features

Woofers: The JL Audio Evolution C2-525 component speakers feature 5¼" injection-molded, mica-filled polypropylene cone woofers with butyl rubber surround. The woofer has a 1.0" voice coil on a Kapton Former, a flat symmetrical roll spider, and a Ferrite magnet.

Tweeters: The component set features ¾" silk dome, ferrofluid-cooled tweeters with a neodymium magnet. Silk is lightweight and great for high frequency extension and efficiency. It is also designed for durability in the extreme automotive environment. Flush and surface tweeter mounting brackets are included.

Tweeter Dimensions:

  Frame Diameter Cutout Diameter Mounting Height Mounting Depth
Flush Mount 1.874" 1.620" 0.286" 0.916"
Surface Mount 1.692" Screw holes only 0.939" Screw depth only

Two-way Crossover System: The C2 component system utilizes a true 2-way crossover system with Mylar capacitors and air-core inductors:

  • High Pass: second order (12 dB/octave slope); three tweeter level settings are selectable via jumper pins: +2.0 dB, Reference, and -3.0 dB
  • Low Pass: first order (6 dB/octave slope)

Tweeter Protection: The crossover network has an electronic tweeter protection circuit built in; it monitors the current and disconnects the tweeter when it senses and overload. The circuit automatically resets once the overload is removed.

Crossover Wiring: The terminal strip will accept bare wire or spade connectors up to 0.31" wide.

Crossover Dimensions:

  • Width: 3.365"
  • Height: 1.445"
  • Depth: 4.732" (plus wire)

Connection Note: The C2 component system comes with no speaker wire. Instead, a number of spade connectors and quick slides are included in the hardware pack to be crimped onto speaker wire you provide.

Power Handling: JL Audio publishes several power specifications for this speaker system, 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

7 questions already asked

Q
Will these speakers work with a 75 watts rms amp/channel?
norbert  Mar 13, 2022
2 answers
A
Not really sure....I installed them in my 06 Sierra back in Aug 2020. I currently have 50 watts going to a pair of them in the front doors....they are outstanding...sound great and are a breeze to hook up.
lamont  Mar 14, 2022
A
Should be ok make sure you use the included crossover
james  Mar 13, 2022
Q
Are both the woofer and the tweeter 75 RMS together or are they 75 RMS each?
vince  Jul 16, 2021
1 answer
A
Not really sure to be honest....I have 50 watts from a 4 channel amp going to a pair in my front doors and they sound great.....
lamont  Jul 22, 2021
Q
What size amp is recommended?
edwin  Dec 26, 2020
3 answers
A
They do not have any special power requirements. I have my JL C2-525 connected to a Alpine CDE175 BT that has less than 20 watts and they work well.
james  Dec 26, 2020
A
It says on the description the range the amp should be. I have a 50 amp alpine and it's perfect.
robert  Dec 26, 2020
A
JL Audio RD 400/4. Is what I used on mine. I ran a set of the C2-525 and a set of C2-600. Good Luck. Hope this helps.
jason  Dec 26, 2020
Q
mounting location for the JL audio C2-525 component system , what is the ideal mounting position for the 5 1/4" woofers? i am putting them in the front of a 68 corvette, and i can place them either in the kick panels or the forward / lower part of the door panels. i was planning on putting the tweeters in the upper forward part of the door. thanks very much!
aric  Jul 24, 2019
1 answer
A
If the ease of installation is the same for you putting the woofers in the lower door panel would probably yield the best sounding results. If it is significantly more difficult they should still sound good in the kick-panels too though.
casey  Aug 04, 2019 (Staff)
Q
Best 4 channel amp?
aaron  Apr 13, 2018
2 answers
A
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
kristina  Apr 30, 2018 (Staff)
A
I recommend an JL Audio amp. Their are cheaper amps that would do great but JL'S have served me well over the years without issue.
mark  Apr 24, 2018
Q
What is the woofer mounting width?
djecko  Jul 03, 2017
1 answer
A
The JL Audio C2-525 woofers require a cutout diameter of 4.52" in order to mount properly. For more details or to discuss further, please feel free to contact an Advisor directly by phone (888.955.6000) or online chat. Hope that helps!
david  Jul 09, 2017 (Staff)
Q
can I just order the installation gear for these speakers for a 2015 Ford Fiesta?
jacob  Oct 18, 2016
1 answer
A
If the gear is available then you most certainly can. This will depend largely on your vehicle, there are several different models/factory systems. For details on 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 what you will need for an installation.
kenneth  Oct 21, 2016 (Staff)
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