JL Audio C5075-CT

Evolution™ C5 Series 3/4" silk dome tweeter

  • JL Audio C5075-CT


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You'll have to custom-mount tweeters or midrange speakers, which usually requires drilling holes and running new wires.

Our take on the JL Audio C5075-CT

by Buck Pomerantz
JL Audio

JL Audio's C5075-CT 3/4" silk dome tweeters bring your high-frequency sounds into crisp, clear focus. You'll hear more details in your music, with a real sense of where each instrument is placed in the mix.

Each tweeter comes with mounting hardware for flush- or surface-mounting, and JL Audio's ratcheting swivel rotation (RSR) flush-mount system permits precise aiming even after installation. The C5075-CT tweeters feature strong, ferrofluid-cooled neodymium magnets for superior performance.

Note: These tweeters must be used with the supplied in-line high-pass crossover filters or another appropriate external crossover. Failure to do so could lead to damage to the tweeters not covered under the warranty.

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  • 3/4" ferrofluid-cooled silk domes
  • flush- and surface-mount hardware included
  • in-line high-pass filters included (6 dB/octave)
  • power handling: 2-50 watts RMS (125 watts peak power)
  • frequency response: 4,000-25,000 Hz
  • impedance: 4 ohms
  • sensitivity: 89 dB (92 dB at 2.83V)
  • flush-mount depth: 9/16"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Priced per pair

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Tweeter Design Dome
Tweeter Composition Silk
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity 92 dB
Frequency Response 4000 - 25k Hz
High-Pass Crossover Frequency 4000 Hz
RMS Power Range (Watts) 2-50
Peak Power Handling (Watts) 125
Impedance (Ohms) 4
Top-mount Depth (Inches) 5/8
Cutout Diameter or Length (inches) 1 9/16
Product Research
What's in the box?

Download owner's manual

  • Two 0.75" tweeters with attached 6" positive and negative speaker leads terminated by female quick-slide connectors
  • 2 External crossovers with attached 11" positive and negative speaker leads terminated by male quick-slide connectors on one end and attached 46" positive and negative speaker leads terminated by bare-tinned wire on other end
  • 2 Flush-mount mounting brackets
  • 2 Surface-mount mounting brackets
  • 2 Mounting rings
  • 2 Rear brackets
  • 4 Male quick-slides
  • 2 Mounting bolts
  • 4 Mounting screws

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.


Overview: The 3/4-inch (19mm) silk dome tweeter is incredibly smooth on and off-axis for accurate imaging and a big, stable soundstage. Its tiny neodymium magnet and small chassis give it excellent placement flexibility in the component systems. Additionally, JL Audio's RSR mounting system permits precise angling of the component tweeters after installation.

Silk Domes: The JL Audio C5-075ct features a 3/4" ferrofluid-cooled silk dome tweeter which is incredibly smooth on- and off-axis for accurate imaging and a big, stable soundstage.

Neodymium Magnets: The small neodymium magnets and small chassis give it excellent placement flexibility.

Performance: The C5-075ct tweeters are tested and matched to within 1 dB of JL Audio's reference curve to ensure optimum system performance.

High Pass Crossover: The JL Audio external high pass crossover networks (6 dB/octave) offer high-end filter components such as precisely wound air-core inductors and high-quality, low-tolerance capacitors. Tweeter protection is also incorporated into the crossover networks. The crossovers measure 0.895" in diameter and 3.285" in length.

Mounting Options: The C5-75ct tweeters can be flush or surface mounted using the supplied hardware.

  • Flush Mounted: The tweeters can be mounted in JL Audio's RSR flush-mounting system to permit precise angling of the tweeters after installation. The mounting dimensions are as follows:
    • Mounting Depth: 0.565" (1.675" screw depth)
    • Mounting Height: 0.36"
    • Frame Diameter: 1.765"
    • Cutout Diameter: 1.505"
  • Surface Mounted: The tweeters can also be mounted in the supplied surface-mount brackets for even easier installation. The surface mount brackets are slightly angled for flexible mounting options.
    • Mounting Depth: 0.9375" (screw depth)
    • Mounting Height: 0.885"
    • Frame Diameter: 1.615"
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JL Audio C5075-CT Reviews

Average Customer Review:

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4 out of 5

JL C5075-CT tweeters

Written By Dave, Tinley Park IL. on Tuesday, August 05, 2014
Crutchfield Customer Review (What's this?)
These tweeters are a noticeable difference from the factory paper tweeters. Having the JL name on them I'm sure they are of good quality they are known for. The only downside is that they are a little pricey. Could have spent a little less on another brand with other 5 star ratings.
Sound quality
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5 out of 5

JL Audio C5075-CT

Written By Anonymous, Flint mi on Wednesday, October 23, 2013
Crutchfield Customer Review (What's this?)
Mounted these on dash of my 01 wrangler. What a difference. Great clear highs.
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5 out of 5

Not bad

Written By Dave, Pittsburgh, Pa. on Monday, April 02, 2012
Crutchfield Customer Review (What's this?)
I have an 03 Silverado WT. and an 04 F-250 SD. Crutchfield is in both. The C5075-CT's work well in the Ford. These are "add-ons". As I am running a factory head, with a small amp and Four Boston two-ways, (Crutchfield), in the factory locations. These tweeters add an extra "wow". Long story short., I like them.
Good service, Good product.
1 out of 4 people found this helpful
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5 out of 5

Excellent Upgrade for 2012 Lincoln MKZ Hybrid

Written By BenjaminJ, Battle Creek, MI on Tuesday, August 23, 2011
Crutchfield Customer Review (What's this?)
C5-075CT are excellent tweeters. They solve one of the many problems I have with my new 2012 Lincoln MKZ Hybrid. Neither the standard Lincoln Sound System nor the upgraded version have top quality speakers...I elected to upgrade the sound system on my own rather than purchasing the upgraded Lincoln system, which was costly and didn't suit my ears. (Lots of speakers, but only moderate quality sound)

One of the many issues with the Lincoln system is that the center speaker overpowers the component speakers in the door, so rather than getting the 'surround feel' you get the feeling that someone is talking to you from the center of the car. (The stock speakers in the doors simply prevent the feeling of dead spots in the sound system).

I selected these tweeters due to their high sensitivity and ability to put out a strong volume even with a weak head unit (stock from Ford). The C5-075ct did the trick. Now that they are installed, I have the feeling that the mid/high frequency is coming evenly from all over the front of the vehicle rather than simply the center channel.

The sound clarity and complexity are excellent. These tweeters reproduce the high notes exceedingly well without me having the feeling that a cat is clawing at the chalk board.

I definitely recommend these tweeters.
6 out of 6 people found this helpful
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5 out of 5

Worth the Money

Written By Joe, San Francisco, CA on Tuesday, May 18, 2010
Crutchfield Customer Review (What's this?)
I upgraded to these JL 5075 tweeters after one of my polks up and died on me. I was a bit skeptical at first due to the price, but once installed I immediately knew where that extra money went. Awesome sound clarity, smooth delivery without being tinny sounding at all. I have these powered by a Rockford Fosgate amp running 50 watts RMS per tweeter, they add a level of detail and actual volume that I didn't know tweeters could even provide, highly recommended.
40 out of 42 people found this helpful
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For a more in-depth review and enhanced detailed information on the JL Audio C5075-CT, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_136C5075CT/JL-Audio-C5075-CT.html ).