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JL Audio M100-CT-SG-WH

1" marine tweeters (White w/ "Sport" grilles)

Item # 13691778

A good set of tweeters will raise the soundstage and really open up the sound of your boat's system.

A good set of tweeters will raise the soundstage and really open up the sound of your boat's system.

California customers:
Please click here for your Proposition 65 warning.

Discontinued item
4 questions - 4 answers

Item # 13691778

About the JL Audio M100-CT-SG-WH

Tweeters tough enough for marine use

A good set of tweeters will raise the soundstage and really open up the sound of your boat's system. Perk up your maritime music with JL Audio's M100-CT-SG-WH marine tweeters.
JL Audio Built In USA JL Audio MTPOD-M100-CL

Shown with JL Audio MTPOD-M100-CL tweeter pods (sold seperately)

Tweeters tough enough for marine use

A good set of tweeters will raise the soundstage and really open up the sound of your boat's system. Perk up your maritime music with JL Audio's M100-CT-SG-WH marine tweeters.

These silk dome tweeters radiate the high frequencies in a broad pattern for excellent sound coverage, and they're treated to withstand exposure to sun and moisture. Corrosion- and UV-resistant polymer housings ensure that they'll last for many seasons on the water. JL Audio includes all the hardware you'll need for flush-mounting your tweeters.

The UV-resistant polymer basket encases and protects the entire structure, and as an added bonus the UV protection ensures the white "Sport" grilles will look factory-fresh even after years of exposure to sunlight and spray. The package includes inline high-pass crossovers which you can use to wire these tweeters to existing speakers, or you can use them with any appropriate crossover network.

If you're looking for a sleek, stylish way to mount your tweeters, check out JL Audio's MTPOD-M100-CL billet aluminum tweeter pods.


Product highlights:

  • 1" silk dome tweeters treated to withstand UV and salt/spray exposure
  • white "Sport" grilles
  • UV-resistant polymer housings
  • flush-mount hardware included
  • inline high-pass crossovers (5000 Hz with 12 dB/octave slope)
  • power handling: 40-175 watts RMS (300 watts peak power)
  • frequency response: 4000-25,000 Hz
  • sensitivity: 91 dB
  • 2-1/8" diameter x 1" height
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # 91778

What's in the box:

  • Two 1" tweeter with White Sport grilles and attached 31" speaker wires (female 0.11" quick slides)
  • Two 63" lengths of speaker wire with in-line high-pass filter (with male 0.11" quick slides on one end and tinned bare wire on other end)
  • 2 Surface mounting cups
  • 2 Flush mounting cups
  • 2 Metal mounting clips
  • 2 Pan-head screws (M4 x 30mm)
  • 6 Self-tapping screws (Length=3/4")
  • JL Audio decals

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Crutchfield response

<< >>

More details on the JL Audio M100-CT-SG-WH

Pat M.

Features & specs

Speaker Size
Design 1-way
Tweeter Design Dome
Tweeter Composition Silk
Woofer Composition ---
Woofer Surround ---
Parts Warranty 2 Years
Labor Warranty 2 Years
Sensitivity 91 dB at 1 watt
Frequency Response 4000 - 25k Hz
Max RMS Power Handling 175
Peak Power Handling (Watts) 300
Impedance (Ohms) ---
Top-mount Depth (Inches) 0 7/8
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 1 7/8
The JL Audio M100-CT-SG-WH replaces these items:

Product Research


Overview: The JL Audio M100-CT is a 1" silk dome tweeter, engineered and built for marine applications. This M-Series component tweeter is designed to provide superior performance in wide-open environments. The tweeters come with surface-mount and flush-mount brackets, and in-line high-pass filters on the included speaker wires. This pair of tweeters (M100-CT-SG-WH) has the White Sport grille and white polymer frame and mounting cups.

Materials: The M100-CT's 1" dome is made of pure silk which has been specially treated to withstand the harsh marine environment. The polymer frame and mounting cups are resistant to corrosion and UV rays.

High Pass Crossover: The tweeters must be used with an appropriate crossover network or high-pass filter. The included speaker wires (each roughly 5' in length) contain in-line 4000 Hz high-pass filters. If no other crossover is used, whether it is built into the amplifier or an external crossover, the in-line high-pass filters should be used. (The included in-line filters are about 3/4" in diameter and 1-1/2" in length.)

Mounting Options: The M100-CT marine tweeters can be either flush-mounted or surface-mounted, using the included mounting fixtures. The mounting dimensions for each mounting option are as follows:

Mounting Fixture Mounting Depth Mounting Height Frame Diameter Cutout Diameter
Flush Mount 0.825 0.492" 2.381" 1.849"
Surface Mount N/A 1.028" 2.435" N/A

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Customer Q&A

4 questions already asked

my M100-CT-SG-WH 1" tweeters owners manual?
[ Jason  Jul 12, 2016 ]
1 answer
I did not get one ! So not much help her still have not installed !
[ GARY J  Jul 12, 2016 ]
how to adjust tweeter attenuator inside inline cross over? -1 db -2db -3db etc.
[ Jason  Jul 12, 2016 ]
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: Or try our online support center:
[ Krissy  Jul 12, 2016 ]  Staff
Do these tweeters have any othe mounts like angle months or something ?
[ Joseph  Mar 16, 2016 ]
1 answer
nope, just surface mount and flush mount. no angle mounts...
[ Todd  Mar 16, 2016 ]

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