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Infinity Kappa 42.9I

4" Kappa Series 2-way Speakers (KAPPA42.9I)

4.6

(11 reviews)

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Kappa: The Essence of Infinity

This Infinity Kappa 682.9cf is the essence and trademark of Infinity car audio. With all the high-end engineering and technology that goes into each Kappa speaker, you will sure that you are receiving only the highest quality components. Made with a woven glass fiber woofer cone, which contributes to low cone flex, low distortion, and enhanced acoustic clarity. Due to the increased power handling of the Kappa series, the Kappa 682.9cf feature edge-driven MMD dome tweeters that allow for a seamless sonic integration between the tweeter and the mid-woofer. Using the latest in loudspeaker engineering, each of the crossovers has computer optimized voice-matched outboard passive crossovers for flawless performance.

Unipivot: Staging Made Easy

The Infinity 682.9cf features a patented Unipivot tweeter design that ensures proper imaging when the speakers are installed. With the tweeter capable of being moved, it is positional and rotational even after the final screw secures the speaker in the door. Since most speakers are installed low in the door, the Unipivot design brings the soundstage up to the listener for more accurate and enjoyable experience. Each of the Kappa coaxial speakers, such as the Infinity Kappa 682.9cf feature adjustable tweeter level control. This switch will adjust the tweeters output by 3 dB. That simple tuning can make all the difference in your system and it ensures that your Kappa speakers will deliver exactly the sound that you are looking for.

True Four Ohm Technology

The engineers at Infinity have developed a speaker that works for all applications. The True Four Ohm Technology used in these speakers make it perfect for running directly of a headunit or with an aftermarket headunit and amplifier. All of the speakers in the Infinity Reference line feature a 2 ohm voice coil. However, when you factor in the small OEM speaker wire of most vehicles and the heating in the voice coil during use, the impedance actually seen by the amplifier will increase. Infinity has adjusted the speaker to be safely connected to any headunit.

General Features:

  • 4" Kappa Series 2-way Speakers
  • Power Handling:
    • Peak: 300 watts per pair / 150 watts each
    • RMS: 100 watts per pair / 50 watts each
  • Woven glass fiber cone woofer
  • Rubber surround
  • Edge driven MMD dome tweeter
  • Unipivot patented rotating tweeter allows tweeter to be directed at the listener's location
  • Direct connect computer-optimized, voice-matched outboard passive crossover for superb detail and accuracy
  • Tweeter level adjustment on tweeter by simply rotating the tweeter to add or subtract 3 dB output
  • 2 ohms impedance
  • Top-mount depth: 1-7/8"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Priced Per Pair

Speaker Specifications
Speaker Size4"
Design2-way
Tweeter DesignDome
Tweeter CompositionMMD (Metal Matrix Diaphragm)
Woofer CompositionWoven Glass Fiber
Woofer SurroundRubber
Peak Power Handling150 watts
RMS Power Handling50 watts
Sensitivity93 dB
Frequency Response75 - 25000 Hz
Impedance (Per Voice Coil)2 ohms
Shallow Mount InstallationYes
Top-Mount Depth1-7/8"
Bottom-Mount Depth2-1/2"
Cutout Dimensions3-9/16"
Speaker GrillesYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Infinity Kappa 42.9I
Average Customer Rating is 4.6 out of 5 stars:
4.6
based on 11 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
73%
4 star:
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.
18%
3 star:
.
.
9%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.8
Value
4.6
Features
4.6
Design
4.5
Usability
4.8
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
October 11, 2010 Great bang for the buck!
1 of 1 people found the following review helpful:
Review by
T. Scott from Summerville, South Carolina
Overall
Durability
Value
Features
Design
Usability
These are great mid range speakers with one of the cleanest sounds that I have heard in a long time! The lows are typical of small speakers, but the mids and highs more than make up for it even if you don't run an amp to it.
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August 10, 2010 Fits Porsche 996 with minor modifications
1 of 1 people found the following review helpful:
Review by
Emdog from Los Angeles, ca
Overall
Durability
Value
Features
Design
Usability
Sounds a million times better than my stock Porsche 996 set up and I only had to do a little bit of modification.
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January 15, 2010 great speakers.
1 of 1 people found the following review helpful:
Review by
chazkez08 from fredericksburg, va
Overall
Durability
Value
Features
Design
Usability
i have a pair of these hooked up to a crunch p900.4 and they sound great. i have them set up so they have the high pass filter and they sound crystal clear. i tried letting them bump a little by switching them to no filter but they couldn't handle much. i didn't really expect much out of 4 1/2 in. speaker anyway. overall, if your looking for a decently priced speaker to fill in the highs and mids in your system, you won't be disappointed with these.
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September 27, 2011 Crisp, good for front speakers.
Review by
Eston from Grand Canyon, AZ
Overall
Durability
Value
Features
Design
Usability
I used these to replace factory 4 inch rounds for my front speakers and paired with Infinity 462.9cfp for the rear. They sound nice for radio, and mellow songs. However, they get overworked and bottom out while listening to pop, hip hop, and country with a lot of deep notes. Would propbably be very nice if paired with larger speakers for the lows.
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September 11, 2011 lot of sound out of little speakers
Review by
JeepJeff018 from Saugus, CA
Overall
Durability
Value
Features
Design
Usability
Used them in my jeep wrangler and then made a custom home speaker system with them. Great for little speaker installations.
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View All 11 Reviews for Infinity Kappa 42.9I
Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
 ProductPriceAdd?
20 ft. of 16 AWG KICKER X-Series Speaker Wire20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.
$19.99
50 ft. of 14 AWG StreetWires Speaker Cable50 ft. of 14 AWG StreetWires Speaker Cable
Streetwires Super Cable provides a zero-grip insulation for a smooth install as well as true gauge twisted wire construction.
$29.99
50 ft. of 16 Gauge Monster XLN Series Speaker Cable50 ft. of 16 Gauge Monster XLN Series Speaker Cable
Upgrade to clean and clear sound with Monster Cable's Xtra Low Noise (XLN) construction.
$35.00
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Xtreme Speaker KitDynamat Xtreme Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!
$21.99
Dynamat Dynaxorb Speaker PakDynamat Dynaxorb Speaker Pak
Revolutionary damping material designed to prevent distortion caused by the back wave of a speaker interfering with the front wave.
$19.99
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat products!
$18.99
Ballistic Speaker KitBallistic Speaker Kit
Eliminate speaker distortion, road noise, and rattles with this sound dampening material from Ballistic.
$15.99
Speaker Baffles, Spacers, and Depth Extenders
Mount your speakers in the location that you need with these speaker spacers, extenders, and adapters.
 ProductPriceAdd?
3/4" Depth Extender for 4" Speakers3/4" Depth Extender for 4" Speakers
Add 3/4" of extra space when installing your speakers.
$6.99
Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
 ProductPriceAdd?
Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!
$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.
$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!
$6.99
16-14 AWG Butt Connectors16-14 AWG Butt Connectors
These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!
$4.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99
Main Product
 ProductPriceAdd?
Infinity 42.9IInfinity Kappa 42.9I$79.99
Related products
Infinity Kappa 42.9I + Sound Dampening
4" Kappa Series 2-way Speakers • 150W Max • 50W RMS • Woven Glass Fiber Cone Woofer • Rubber Surround • Edge Driven MMD Dome Tweeter • Direct Connect Computer-Optimized, Voice-Matched Outboard Passive Crossover • Includes Sound Dampening Material

Product Summary

Manufacturer: Infinity
Model number: 42.9I
UPC: 050667110017
Weight: 4.00 lbs
Internal SKU: 429i
Internal product ID: 13961

Price Information

$149.95

–$69.96

$79.99

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Customer Testimonial

I have bought many things from sonic before. I have never been disappointed in you guys yet. The products have all functioned great and i have no reason to shop anywhere else. You guys price match and you guys carry the latest of everything. I will continue to buy from you guys in the future.

- Chad from Berrien Springs, MI

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