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JL Audio C1-100ct

1" aluminum dome tweeters

Item # 13699049

After an extensive tour of JL Audio HQ, I got the opportunity to talk to their engineering and...

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After an extensive tour of JL Audio HQ, I got the opportunity to talk to their engineering and...

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Item # 13699049

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$69.99 pair
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About the JL Audio C1-100ct

Starter speakers like no other

After an extensive tour of JL Audio HQ, I got the opportunity to talk to their engineering and development team about the current JL Audio lineup and upcoming projects. Given all the work they're doing with premium car audio, I was surprised by how excited they were for customers to hear their workhorse C1 Series — speakers designed for drivers simply looking for a sensible factory speaker replacement, not necessarily an audiophile-grade solution. The reason for that excitement, once I heard it, made perfect sense — every JL Audio speaker must uphold the quality and sound associated with the name. You may be looking for something that's just listenable, but what you'll get with the C1 Series is an audio experience that puts it at the top of its class. And then, just maybe, you'll end up being a JL Audio fan for life.

Starter speakers like no other

After an extensive tour of JL Audio HQ, I got the opportunity to talk to their engineering and development team about the current JL Audio lineup and upcoming projects. Given all the work they're doing with premium car audio, I was surprised by how excited they were for customers to hear their workhorse C1 Series — speakers designed for drivers simply looking for a sensible factory speaker replacement, not necessarily an audiophile-grade solution. The reason for that excitement, once I heard it, made perfect sense — every JL Audio speaker must uphold the quality and sound associated with the name. You may be looking for something that's just listenable, but what you'll get with the C1 Series is an audio experience that puts it at the top of its class. And then, just maybe, you'll end up being a JL Audio fan for life.

Take your highs to a new level

These C1 Series C1-100ct 1" aluminum dome tweeters stand apart from other component tweeters at this price. Their edge-driven design gives you a smooth response and minimizes distortion. You'll experience crisp detail in the high frequencies and incredible imaging that will make your factory tweeters hide in shame. Included in-line crossovers ensure that these tweeters receive the right frequencies, and JL Audio supplies flush- and surface-mount solutions for the perfect installation.

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Product highlights:

  • 1" aluminum edge-driven dome tweeters (pair)
  • flush- and surface-mount hardware included
  • in-line crossover networks
  • handles up to 60 watts RMS
  • frequency response: 3,600-22,000 Hz
  • sensitivity: 94.5 dB at 2.83 volts
  • top-mount depth: 3/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # 99049

What's in the box:

  • 2 Tweeters (with 6" wires attached)
  • 2 Crossovers
  • 2 Flush mount housings (tweeters installed)
  • 2 Surface mount housings
  • 2 Metal spring clips (for flush mounting)
  • Four 5/8" Flat head screws
  • Two 25mm Stud bolts
  • Two 10mm Stud bolts
  • 2 M5 Nuts
  • Owner's manual

Customer reviews

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JL Audio C1-100ct reviews

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JL Audio C1-100ct

Andrew from Paulsboro, NJ on 9/15/2019

2008 Ford Explorer

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Amazing sound

Pros: Loud

Cons: None

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0 of 0 found this helpful

JL Audio C1-100ct

Crutchfield customer from Los Angeles, CA on 8/10/2019

2003 Ford Mustang

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Very clear good sound quality

Pros: Sound

Cons: N/A

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0 of 0 found this helpful

BEST TWEETERS EVER!

Crutchfield customer from Littleton, CO on 6/20/2019

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These tweeters are absolutely amazing!! The highs blend superbly with the mids and bass!! I have never been happier with my stereo system!! The Crutchfield agent pointed me towards these, and she was completely correct!! Thanks guys/gals!

Pros:

Cons:

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1 of 1 found this helpful

JL Audio C1-100ct

Crutchfield customer from Parachute, CO on 4/2/2019

1971 Chevrolet Camaro

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Thank you, I love this product

Pros:

Cons:

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0 of 0 found this helpful

Easy Install, Great Base

Mark from Ocala, FL on 2/27/2019

2009 Toyota Tacoma

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Last thing to replace....tweeters! and IMHO I chose a great pair considering all my speakers are now JL Audio and I love the highs and clarity these added over my stock tweeters rounding out the system very nicely no matter if I'm jamming to Metallica or relaxing to James Taylor

Pros: JL Audio Cost Sound install kit supplied free of charge

Cons: none

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1 of 2 found this helpful

One of the best there is...

Crutchfield customer from Montclair, NJ on 11/12/2018

2016 Mazda MX5

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Really nice smooth tweeters. It sounds more like a silk tweeter than a medal dome one, in that the sounds are smooth and not strident. JL Audio's entry line is better than some other manufacturer's top of the line. I am using them in the pillars of a 2016 MX-5, they are replacing a set of Bose hard dome tweeters. One of the best upgrades that can be done to increase the sound quality. I have not tried them with the top down. Our weather is not cooperating. I have never considered JL Audio before, my loss. Should have tried them years before.

Pros: Great price and quality.

Cons: None

Crutchfield response on

4 of 4 found this helpful

Decent tweeters, a bit hot for my taste

Jack from Houston, TX on 10/28/2018

2008 Toyota Highlander

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Spoiler: this is not the right speaker choice for a 2008-2013 Toyota Highlander (with JBL). I bought these to replace the front dash speakers in my wife's 2008 Toyota Highlander. What I didn't know going in is the factory stereo has a crossover built in that sends only low frequencies to the 6x9s in the front doors. If I'd known that I would have bought an Infinity or Pioneer 6x9 component system so the tweeters and woofers would have been matched. That said, these JL Audio tweeters are OK. I much prefer the sound of their fabric dome tweeters (and have a pair in my car). These aluminum dome drivers are a little hot and sibilant to my ears. I think my wife likes them, though. Installation was pretty straight forward. Note that Crutchfield tells you an adapter is required and they don't supply one. When I removed the factory speaker from the dash, I cut the driver out of the basket and glued the JL Audio tweeter (with its surface-mount cup/ bracket) into the factory driver's basket. Instant adapter. I had to cut the slip-on connectors off the Metra harness supplied by Crutchfield and solder the bare ends to the input wires of the crossover supplied by JL Audio. Other than that, installation was straight forward and simple.

Pros: Easy to install in a 2008 Toyota Highlander, better sound than the factory drivers.

Cons: Sound isn't to my taste, but my wife likes them well enough.

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1 of 3 found this helpful

Quality sound

Crutchfield customer from Navarre, FL on 9/20/2018

2013 Toyota Tacoma

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Major quality and clarity difference from the stock Tacoma tweeters. Took a little fabrication for the mount but it turned out nice

Pros:

Cons:

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2 of 2 found this helpful

JL Audio C1-100ct

Crutchfield customer from Alexander, NC on 6/23/2018

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JL silk suspension tweets are definitely the best bang for buck.. I replaced some very old Diamond audio's and it's day and night difference..

Pros:

Cons:

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1 of 1 found this helpful

Jbl tweeters

Doug from Huntsville, AL on 5/23/2018

2017 Jeep Wrangler Unlimited

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Not so easy to install. I had to use the old factory plastic speaker frame. I just peeled off the mounting frame from the old paper speaker. After that, I just joined wires, used the metal brackets that Crutchfield sent with the speakers. Total time of installation- 1.3 hours. I took my time. The speaker really define the high notes. I'm glad I bought them.

Pros: sound is excellent

Cons: Not an easy install. Should have some experience.

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1 of 2 found this helpful

JL Audio C1-100ct

Mike from Clanton, AL on 5/9/2018

1999 Nissan Pathfinder

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These add on tweetersare crystal clear and are very easy to install. Had them hooked up and sounding great in less than 30 minutes. It helps if you have the hole saw to cut the hole if you are flush mounting them. Looks like factory install. Very clear sound. Have tried some other brands like the Rockford's and pioneers and these sound better to me. You won't be disappointed and the price is great as well.

Pros: Clear, easy install look and sound great.

Cons: Wish the wires from the tweeter were a little larger gauge but other than that I like them.

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1 of 1 found this helpful

JL Audio C1-100ct

Daniel from Newport News, VA on 2/27/2018

2005 Scion xB

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Good product good fit for my car

Pros:

Cons:

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2 of 2 found this helpful

JL Audio C1-100ct

Jerry lee from York, SC on 11/5/2017

2014 Chevrolet Silverado 1500

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Sounds great

Pros:

Cons:

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3 of 5 found this helpful

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More details on the JL Audio C1-100ct

Pat M.

Features & specs

General
Speaker Size 1
Design 1-way
Tweeter Design 1" Edge-Driven Dome
Impedance (Ohms) 4
Tweeter Composition Aluminum
Woofer Composition ---
Woofer Surround ---
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) 91.5
Sensitivity at 2.83 volts 94.5
Frequency Response 3600 - 22k Hz
Minimum RMS Wattage 20
Maximum RMS Wattage 60
Peak Power Handling (Watts) 150
Top-mount Depth (Inches) 0 15/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 1 3/4

Product Research

Features

Tweeters: The 1" edge-driven, aluminum dome tweeters are damped by a silk surround suspension. Flush and surface tweeter mounting brackets are included.

Tweeter Dimensions:

  Frame Diameter Cutout Diameter Mounting Height Mounting Depth
Flush Mount 1.970" 1.734" 0.330" 0.931"
Surface Mount 2.005" Screw Holes Only 0.872" 0.535" (Screw Depth)

Crossovers: The in-line tweeter crossovers are 2nd order (12 dB/octave slope) and the 30" input and 15" output wires are attached. The input wires are terminated with female quick slides and the output wires are terminated with male quick slides that plug into the terminals on the wires attached to the tweeters. The electronic tweeter protection circuit is designed to minimize the possibility of tweeter failure. It monitors current going to the tweeter and will disconnect the tweeter from the signal when it senses overload. Once the volume has been reduced, the protection circuit will reset itself automatically.

Crossover Dimensions:

  • Width: 2" (3" including wire)
  • Height: 1"
  • Depth: 1-3/8"

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
price, size, fitment [ Sanford  Jul 12, 2019 ]
A
because other than my head unit and factory tweeters my entire system is JL Audio, this completes my system [ Mark  Feb 11, 2019 ]
A
Good match for my car where I have to use the stock stereo and because it is a convertible, needed it to be loud and efficient and high quality. Choice was these vs the Focal Integration. I liked the workmanship and attention to detail on the JL Audio tweeters better. [ chris  Nov 04, 2018 ]
A
JL Audio and the size [ Bryan  Oct 09, 2018 ]
A
For the price, you can't beat the quality and reliability of JL audio [ ryan  Aug 13, 2018 ]
A
Need a new aftermarket pair of good quality tweeters (JL Audio) to match with 6 pioneer door speakers and 2 8-inch Polk subwoofers. I already bought from Crutchfield the JLAudio -800 amplifier. Later, I will get the top of the line Pioneer AVH 4201 or 8201. [ DONALD  Mar 16, 2018 ]
A
Jl audio products sound good.owned them before. [ ANTHONY R  Feb 27, 2018 ]
A
To handle the extra power from amp install and better sound than factory. [ BRUCE  Jan 13, 2018 ]
A
I have a set of jl c5 650 components and I will add these to them for a lil more tweet to my front speaker set up in my 2015 Sierra crew cab I have all jl and I'm very happy [ Ernesto  Jan 01, 2018 ]
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