Infinity Kappa 10.11t

3/4" soft dome tweeters

  • Infinity Kappa 10.11t


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

Our take on the Infinity Kappa 10.11t

by John Pollard

Legendary sound

Infinity's Kappa 10.11t 3/4" tweeters continue in the tradition of this legendary line of speakers, bringing you impressive sound quality. Once installed, these tweeters will bring out every nuance and detail in your favorite music tracks, making time spent in your car seem more like a concert than a commute.

Large soft dome tweeters

If you're looking for natural-sounding high frequencies, these edge-driven 3/4" soft dome tweeters are a great candidate for your system. The edge-driven" design creates a larger tweeter that handles more power and delivers smooth response way down into frequencies not covered by smaller "W"-shaped domes. You'll hear a more clearly defined soundstage where you can picture the placement of every instrument.

Infinity includes hardware for surface- or flush-mounting the tweeters, plus Starfish brackets that help you install the tweeters in many factory tweeter openings. The included external crossovers send the appropriate frequencies to the tweeters to protect them from damage.

Great for any system

These 2-ohm tweeters are sensitive enough that you can power them with an aftermarket stereo, but you'll get your best results feeding them plenty of power from an outboard amp — up to 50 watts RMS.

See more info on this item


  • 3/4" soft dome tweeters
  • 2-ohm impedance
  • flush- and surface-mount hardware included
  • Starfish™ bracket for mounting in factory tweeter locations
  • outboard computer-optimized crossovers
  • power handling: 5-50 watts RMS (150 watts peak power)
  • frequency response: 3,500-35,000 Hz
  • sensitivity: 93 dB
  • flush-mount depth: 3/4"
  • warranty: 3 years
  • Our 60-day money-back guarantee

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

Features and Specs
Tweeter Design
3/4" Dome
Tweeter Composition
Parts Warranty
3 Years
Labor Warranty
3 Years
93 dB
Frequency Response
3500 - 35k Hz
High-Pass Crossover Frequency
RMS Power Range (Watts)
Peak Power Handling (Watts)
Impedance (Ohms)
Top-mount Depth (Inches)
Cutout Diameter or Length (inches)
1 15/16
Product Research
What's in the box?

Download owner's manual

  • 2 Tweeters (6" wire attached)
  • 2 Crossovers
  • 2 Flush-mount cups
  • 2 Threaded flush-mount adapters
  • 2 Plastic locking nuts
  • 2 Surface-mount cups
  • 2 Starfish tweeter mounts
  • Six 3/8" Flat head screws
  • Two M4x10mm Machine screws
  • 2 Washers
  • 2 Adhesive backed tweeter grille badges
  • Instructions

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.


Edge Driven: The 3/4" edge-driven tweeters use textile soft domes. An edge-driven tweeter has better dispersion characteristics and allows for a lower crossover frequency than typical tweeters of the same size, which improves imaging. The result is improved vocals and musical clarity.

Tweeter Mounting: The I-Mount tweeter mounting system and Starfish mounting brackets give you several different ways to mount the tweeters:

  • I-Mount Tweeter Mounting System: The tweeters can be surface or flush mounted with Infinity's innovative I-Mount system:
    • Surface Mount: Surface mounting the tweeters involves screwing the surface-mount cup to the mounting location, then inserting and locking the tweeter into the cup.
    • Flush Mount: Flush mounting is made easy through the use of the threaded flush-mount adapter and plastic locking nut. Once a cutout is made, the flush-mount adapter (with the tweeter installed) is inserted into the hole. The large plastic locking nut is threaded onto the adapter (from behind the mounting surface) to hold the complete assembly securely in place. When flush mounted, the tweeters may be angled for optimum response and imaging.
  • Starfish Mounting Brackets: The Starfish mounting brackets allow the tweeters to be installed in factory locations behind the grilles:
    • Surface Mount (behind grille panel)
    • Flush Mount (behind grille panel)
    • Bottom Mount (to grille panel)
    • Flush Mount (in-dash location)

Tweeter Mounting Dimensions:

  I-Mount Surface Mount I-Mount Flush Mount Starfish Surface Mount (behind grille panel) Starfish Flush Mount (behind grille panel) Starfish Bottom Mount (to grille panel) Starfish Flush Mount (in-dash location)
Mounting Height 0.936" 0.638" 0.940" 0.417" 0.0" 0.063"
Depth 0.326" (screw depth) 0.705" 0.326" (screw depth) 0.523" 1.075" 1.012"
Frame Diameter 1.615" 2.218" 1.653" 2.413" 3.268" 3.268"
Cutout Diameter N/A 1.894" N/A 1.653" N/A 2.825"

Crossover Connections: The crossovers have screw terminal inputs and outputs and will accommodate bare wire or spade connectors up to 0.325" wide.

Crossover Dimensions:

  • Length: 2.406"
  • Width: 1.182" (1.576" including mounting tabs)
  • Height: 1.008"

Power Handling: Although Infinity lists the RMS power handling as 50 watts, they also list the recommended power range as 5-75 watts RMS. We've opted to list the more conservative 50 watt RMS figure on the specifications page.

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Infinity Kappa 10.11t Reviews

Average Customer Review:

8 people say:

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Filter by rating:
5 out of 5

kappa tweeters

Written By chucksrevenge, south lyon mi. on Wednesday, May 07, 2014
Crutchfield Customer Review (What's this?)
added that extra excitement to the rest of my infinity speaker system can't wait to get sub in the mix
great transparentsee to the high end
none so far
Was this review helpful?    Yes | No
5 out of 5

infinity kappa 10.11t review

Written By gklue17, Indialantic, fl on Monday, May 05, 2014
Crutchfield Customer Review (What's this?)
awesome sound!
Was this review helpful?    Yes | No
4 out of 5

Good but not great

Written By bdubs504, New Orleans, LA on Sunday, February 16, 2014
Crutchfield Customer Review (What's this?)
I'm still getting used to these tweeters. They have good, clean, crisp sound, with little distortion, but their output/volume is low compared to other tweeters I've had. Tweeters, per se, are not supposed to be "loud," necessarily, but these are soft even for what I expected. Otherwise, I like the way they balance out the mids/lows, creating a fuller, more enjoyable sound stage.
Crisp, clean, clear
Low output
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5 out of 5

Satisfied Customer

Written By J.R.#3, Delano , CA on Monday, November 25, 2013
Crutchfield Customer Review (What's this?)
I am completely satisfied with this product. I have the pleasure of enjoying the performance promised by the product's manufacturers beyond my expectations and expect to never have to replace these tweeters any time soon unless the model to come of course promises better performance.
Size and applicability.
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5 out of 5

Infinity Kappa 10.11t tweeters

Written By Hal, Georgia on Sunday, November 17, 2013
Crutchfield Customer Review (What's this?)
I purchased these to upgrade my 2011 Chevy Silverado "post" mounted factory speakers, which were very shrill sounding. I was able to remove the old factory speakers and install the new ones using double sided tape. I am very pleased with the results. Extremely clean sounding. Gives a distinctive brightness that my system did not have. I can now hear sounds that I never knew were there. I changed out the door speakers with the 2ohm Infinity Kappa speakers. Coupled with a Clarion 4 channel class D compact amp and Clarion EQ from Crutchfield, All I can say is what a difference.
Very high quality. Comes with a variety of surface and flush mounting options. High quality crossover included.
A little pricey but well worth the money spent.
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4 out of 5

Infinity kappa tweeter

Written By Chad, Pa on Thursday, October 17, 2013
Crutchfield Customer Review (What's this?)
Overall very good sound install a lot of customizing but well worth money spent installed in stock location in 05 tuscon no cutting just mods to speaker mount on backside.
Exactly same size as originals
Mount altering and wiring ( had to use original plug from factory ones )
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5 out of 5

Infinity Kappa 10.11t

Written By JayR, Rochester.NY on Monday, May 13, 2013
Crutchfield Customer Review (What's this?)
I useed them to replace blown Jeep tweeters in 1998 Grand Cherokee. I used origional mounting plates and altered them a little for the Kappa's. Easy swap and sound better than expected. I'm happy
Small and shallow. Fit in a small recess. Cross over is also small and fit under dash trim.
2 out of 2 people found this helpful
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5 out of 5

Infinity Kappa 10.11t

Written By AlexL, Plymouth, MA on Thursday, April 18, 2013
Crutchfield Customer Review (What's this?)
I didn't end up using them and instead returned them due to ordering the wrong size, but returning was extremely easy and customer service is amazing!
1 out of 4 people found this helpful
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1 question already asked

Will these fit on a 2005 4runner? I want to replace factory front door tweeters. Already have Kenwood HU, Infinity Kappa front speakers, Infinity Bass Link, and Rockford Fosgate rear speakers [ Rey  Dec 15, 2013 ]
1 answer
  • For information on replacing the factory tweeters please contact an Advisor by phone or online chat. They will be able to pull up your vehicle and see if we have install information for the front door tweeters in your vehicle. [ Jeff Staff  Dec 16, 2013 ]

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