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Infinity Kappa 10.11t

3/4" soft dome tweeters

20 Reviews | 2 questions - 2 answers

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Item # 108K1011T

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825 Gardens Blvd

109 South Carlton

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Was: $159.99

Price Break: -$80.00

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Our take on the Infinity Kappa 10.11t

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.

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.

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

Product Highlights:

  • 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

What's in the Box:

  • 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

Excellent tweeters. I put a pair in my Chevy s10 truck they blowed my ears away with clean sound

J webb, Dallas, TX


Infinity Kappa 10.11t Reviews

Average Customer Review(s):

(20 Reviews)

Direct replacement for Bose tweeter in 2016 Miata

Tom from Worcester, PA on 12/24/2017

Crutchfield Customer Review (What's this?)

But you do have to remove the case around the crossover to fit it into the A pillar. there's a hole in the dash that it fits into once the case is off. I wrapped it in electrical tape for insulation. Once in place the sound was so much clearer that the Bose speakers, they were kind of thick and muddy.

Pros: Tweeter fits in Bose cutout, hot glue it in place. Sounds much better than stock Bose tweeter.

Cons: Crossover fits in dash just below A pillar but you have to remove the plastic case around it. Kind of expensive for tweeter.

Good sounding tweeters

J webb from Dallas, TX on 12/19/2017

2002 GMC Sonoma

Excellent tweeters. I put a pair in my Chevy s10 truck they blowed my ears away with clean sound

Pros: Great tweeters

Cons: A little pricey.

Great Sound!

Felix from San Antonio, TX on 12/19/2017

2013 Ford F-150 XLT
Crutchfield Customer Review (What's this?)

Adds much detail to the music!

Pros: Sound

Cons: A tad bigger than my stock a pillar tweeter location, required more modification than that made for the reference tweeters they replace.

Infinity Kappa 10.11t

Anonymous from Elkridge, MD on 11/12/2017

2013 Honda Accord
Crutchfield Customer Review (What's this?)

Awesome clarity



Infinity Kappa 10.11t

David from Ft Worth, TX on 5/9/2017

2014 Ford F-150 XLT
Crutchfield Customer Review (What's this?)

Clear highs but overall i was disappointed. i expected a lot more out of these for the price i paid.

Pros: clear highs

Cons: price, performance

Crutchfield response on 5/15/2017 David, we're sorry you're disappointed with your tweeters. Whenever you are not completely satisfied with anything you purchase from Crutchfield, please contact our Customer Support team at 1-800-955-9091. Purchases from Crutchfield can be returned or exchanged within 60 days of the purchase.

pure sound

GABRIEL from Tobyhanna, PA on 10/31/2016

2015 Toyota Camry
Crutchfield Customer Review (What's this?)

Great addition to my system would highly recommend these two tweeters....extremely distinctive

Pros: Extremely easy to install Great sound! The inclusion of different mounting options is a plus


Infinity Kappa 10.11t

Ray from Brownsburg, IN on 7/2/2016

2016 Nissan Murano
Crutchfield Customer Review (What's this?)

The crossover has compression screw terminals, but the tweeter wire has pre-attached blade terminals which must be cut off and stripped so they can be attached to the crossover terminals. Stupid design. They should have included the proper size spade terminals to attach to the crossover. The tweter volume is reduced by more than half when the crossover is attached. I just may remove it entirely.

Pros: Includes many options for flush, surface and tilted installation.

Cons: Very low output when crossover is used.

Great Sound!

JGill from Detroit,Mi on 4/11/2016

2013 Ford Focus
Crutchfield Customer Review (What's this?)

Still yet to unleash their full potential. I only have them hooked up to the factory radio which is sub par, but hreat sound either way. Ive never been disappointed with Infinity

Pros: Great sound, small package. The retrofit was easy

Cons: For the price I wish they would have came with a crossover or bass blocker

sounded good

skamin20 from Iowa on 10/7/2015

Crutchfield Customer Review (What's this?)

I bought these and the Alpine SPS-110TW, they were recommend by Norm from Crutchfield. After trying them both out at different spots I decided to keep the Infinity. I am not an audiophile so I couldn't tell a whole lot of difference. I thought the Infinity's had a little bit more of the highs that I was looking for. I ultimately kept them for the look, reputation, and the size based on where I was putting them, top corners against my windshield. The box came with lots of attachments for different location placement. I thought the alpines were a little harsher. Infinity is also know for great tweeters, from what I am told and the Alpines were the S series which is the lower grade I believe. Great addition to my system as I haven't had tweeters in my system ever. Put in Toyota supra running off an alpine amp, paired with (4) 4 inch mids and a 15 inch kicker comp sub. 4 inchers are about to get replaced with 5 1/4 in the back and either the same or 6 1/2 in the doors.

Pros: smaller to fit my location lots of attachments for different locations reputation sounded great good crossover

Cons: finding a place to put the cross over although it isn't huge higher cost with the name

Infinity kappa speakers

Wayne from Wyoming on 9/23/2015

Crutchfield Customer Review (What's this?)

I have a set of infinity kappa 6 1/2 component speakers in rear deck of my grand am the tweeters are custom mounted in the rear door pillar molding hooked to a sound ordinance amp it sounds great I have a 12 in alpine sub in trunk . Put kappa tweeters in front door mirror cover molding right where stock tweeters are located , sounds great. Going to add a sound ordnance amp to front end and it will be awesome . Thanks Crutchfield. My system sounds better then any I have ever had

Pros: Great sound. , comes with numerous mounting options . , would not hesitate to buy kappa again

Cons: The cost of the speakers put them out of range for a lot of people

Sound great.

Pete from Virginia on 8/10/2015

Crutchfield Customer Review (What's this?)

Speakers sound great. Overall a good product. However, it said it fits my 99 4 runner but that wasn't the case. Had to construct my own bracket for these to fit.

Pros: Sound awesome

Cons: hard to mount.

Excellent sound

PickyAudiophile from Vancouver, WA on 9/23/2014

Crutchfield Customer Review (What's this?)

Great crossovers, so I don't have to worry about them over played. I added this pair to an existing Kappa system and mounted them high above me. I am just immersed in crystal clear sound. Love it.

Pros: Soft dome, so they aren't harsh. Great quality. Great sound.

Cons: Not the cheapest on your wallet!

kappa tweeters

chucksrevenge from south lyon mi. on 5/7/2014

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

Pros: great transparentsee to the high end

Cons: none so far

infinity kappa 10.11t review

gklue17 from Indialantic, fl on 5/5/2014

Crutchfield Customer Review (What's this?)

awesome sound!



Good but not great

bdubs504 from New Orleans, LA on 2/16/2014

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.

Pros: Crisp, clean, clear

Cons: Low output

Satisfied Customer

J.R.#3 from Delano , CA on 11/25/2013

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.

Pros: Size and applicability.

Cons: None

Infinity Kappa 10.11t tweeters

Hal from Georgia on 11/17/2013

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.

Pros: Very high quality. Comes with a variety of surface and flush mounting options. High quality crossover included.

Cons: A little pricey but well worth the money spent.

Infinity kappa tweeter

Chad from Pa on 10/17/2013

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.

Pros: Exactly same size as originals

Cons: Mount altering and wiring ( had to use original plug from factory ones )

Infinity Kappa 10.11t

JayR from Rochester.NY on 5/13/2013

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

Pros: Small and shallow. Fit in a small recess. Cross over is also small and fit under dash trim.


Infinity Kappa 10.11t

AlexL from Plymouth, MA on 4/18/2013

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!




Hands-on research

Features and Specs

Speaker Size
Design 1-way
Tweeter Design 3/4" Dome
Impedance (Ohms) 2
Tweeter Composition Textile
Woofer Composition ---
Woofer Surround ---
Parts Warranty 3 Years
Labor Warranty 3 Years
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 93
Frequency Response 3500 - 35k Hz
Minimum RMS Wattage 5
Maximum RMS Wattage 50
Peak Power Handling (Watts) 150
Top-mount Depth (Inches) 0 3/4
Bottom-mount Depth (Inches) 1 1/8
Cutout Diameter or Length (inches) 1 15/16

Product Research


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.

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 verify what’s in the box, 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.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Replace factory's. [ Charles  Jan 09, 2018 ]
i was told to buy from dealer [ kristy  Dec 21, 2017 ]
because there their the best [ Mark  Nov 11, 2017 ]
I like the infinity sound and also have kappa speakers in the truck. You guys had a great deal on the speakers too along with free shipping. [ Sean  Oct 17, 2017 ]
I'm replacing the dash speakers in my 2014 Sierra. The factory speakers are terrible. [ R  Oct 14, 2017 ]
Upgrade over my existing Infinity tweeters - which were already stellar. [ Jetcarrier  Jun 16, 2017 ]
Need richer sound [ NICHOLAS J  Apr 24, 2017 ]
Recommendation by Sales Rep. Chris Chris' Bio: [ Keith  Jul 13, 2016 ]
First time trying these tweeters but have had kappa 60.11componets that sounds great! Hopefully these tweeters will add to the great sounds! Installed on 05 Harley davidson [ Paul  Mar 11, 2016 ]
Great sound [ Wayne  Feb 27, 2016 ]
Item Matched the rms power of my amplifier. [ Ryan  Jan 09, 2016 ]

2 questions already asked

For additional details on fit or 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 if this will fit and what you will need for an installation in your vehicle. [ Kenny  Sep 27, 2016 ]  Staff
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  Dec 16, 2013 ]  Staff