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Infinity Kappa 32.9cf

3-1/2" 2-way car speakers

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Item #: 108329CF
 

Review Summary

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Our take on the Infinity Kappa 32.9cf

by Kristen Schaub
Infinity

Low impedance speakers draw more power from your amplifier for fuller sound

Infinity built the latest Kappa speakers with improved technology and high-end materials to provide you with outstanding sound reproduction. The low-impedance design makes these speakers very efficient, so you'll get great results powering them with a factory or aftermarket stereo.

Larger parts mean better impact

The Kappa 32.9cf 3-1/2" speakers feature light, but stiff woven glass-fiber woofer cones that won't flex or distort. The Plus One design offers a larger surface area for improved low-frequency output and efficiency, while longer voice coils produce tighter, snappier midbass. Large magnets keep the woofers running cooler by placing more steel close to the voice coils to act as a heat sink.

High-fidelity technology produces cleaner music

Infinity uses the same Metal Matrix Diaphragm tweeter found in many of their popular home speakers, so you'll hear the music the way it was recorded with minimal coloration or distortion.

The computer-optimized outboard crossover networks employ audiophile-grade components to separate highs and lows, so that the woofer and tweeter work together perfectly. Pre-wired crossovers eliminate a time-consuming step in your installation, and terminals at the end of the crossover wires screw directly to the speakers, leaving no chance for incorrect wiring.

Important Note: These Infinity Kappa speakers use a low impedance design to pull more power safely from your car stereo or amplifier. This design is compatible with virtually all factory and aftermarket stereos.

Installation Note: These Infinity speakers do not include screws or speed clips. You may be able to use the factory screws to install them, but it's always a good idea to have an assortment of self-tapping screws (5/8" to 1") and speed-clips on hand. Grilles are not included — factory grilles are appropriate for most installations.

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Highlights:

  • 2-way 3-1/2" speakers (pair)
  • True Four Ohm Impedance technology: speaker's 2-ohm impedance combines with speaker wire impedance for a 4-ohm load
  • compatible with virtually all factory or aftermarket car stereos
  • Plus One® woven-glass-fiber woofer cone with hi-roll rubber surround
  • 1" edge-driven M.M.D.® dome tweeter
  • computer-optimized outboard crossover with tweeter level control
  • direct-connect crossover dongle
  • power range: 2-35 watts RMS (105 watts peak power)
  • frequency response: 85-25,000 Hz
  • sensitivity: 92 dB
  • top-mount depth: 1-5/8"
  • warranty: 3 years
  • Our 60-day money-back guarantee

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

Features and Specs
General
Design
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2-way
Tweeter Design
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Dome
Tweeter Composition
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MMD
Woofer Composition
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Woven-glass fiber
Woofer Surround
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Hi-roll rubber
Parts Warranty
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3 Years
Labor Warranty
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3 Years
Specifications
Sensitivity
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92.1 dB at 2.83 volts
Frequency Response
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85 - 25k Hz
RMS Power Range (Watts)
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2-35
Peak Power Handling (Watts)
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105
Impedance (Ohms)
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4
Top-mount Depth (Inches)
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1 9/16
Bottom-mount Depth (Inches)
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2 3/16
Cutout Diameter or Length (inches)
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3 3/16
Product Research
What's in the box?

Download owner's manual

  • Two 2-way speakers
  • 2 In-line crossovers (attached)
  • 2 Adhesive backed foam gaskets
  • Instructions
  • Warranty information

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.

Features

Plus One Woofer Cones: The Plus One speakers use cones more surface area than other speakers of the same size. This is accomplished by using a new basket design and hi-roll surround. The Plus One design offers greater bass output and a significant increase in efficiency.

Woven Glass Fiber Woofer Cones: This woven-glass-fiber material is very light and extremely stiff, minimizing cone flex. This results in very low distortion and improved clarity.

Edge Driven MMD Dome Tweeters: Each speaker has an Edge-driven MMD (Metal Matrix Diaphragm) dome tweeter. The benefit is increased power handling and reduced distortion at high output. This technology also allows for better integration with the mid/woofer.

High-Output Design: The high output 2-ohm voice coil design compensates for the high in-line resistance of small gauge factory wiring and extracts every watt from factory receivers, increasing overall system output and efficiency (relative to 4 ohm speakers). The speaker's 2.0-ohm impedance combined with the impedance of your speaker wire provides a true 4-ohm load to your connected headunit or amplifier. The speakers also benefit from increased power when you upgrade the wire and add aftermarket amplifiers, designed to power a 2-ohm load.

Crossovers: Kappa speakers include computer-optimized, voice-matched crossovers, using audiophile quality air core inductors and polypropylene capacitors. The crossover slope is 18 dB/octave.

Crossover Connections: Each crossover is connected to the speaker by a 6" wire. The input terminals are set screws that will accept up to 10 gauge bare wire.

Crossover Dimensions:

  • Length: 3-1/16"
  • Width: 1-1/4"
  • Height: 1-3/16"
 

Product reviews from the Crutchfield Labs (what are the Labs?)

Video: Infinity Kappa Car Speakers

Video: Infinity Kappa Car Speakers

by Robert Ferency-Viars
 
Video: Infinity Kappa Car Speakers

Infinity Kappa is Infinity's high-performance line of car speakers. They're designed and built to give you excellent sound, especially in an amplified system. Watch as our experts show you why...

 
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Infinity Kappa 32.9cf Reviews

Average Customer Review:

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5 out of 5

1982 380 SL

Written By TimE, Torrance CA on Saturday, July 14, 2012
Crutchfield Customer Review (What's this?)
 
These speakers will not fit a 380Sl. There is a tall ring around the speaker that interferes with the speaker grill. Also, the screw tabs don't come close to lining up with the stock holes. Too bad. I was looking forward to listening to them. I am giving them a five star rating only because All of my other Infinity speakers sound great.
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5 out of 5

got the whole set

Written By l3, botte, la on Friday, June 22, 2012
Crutchfield Customer Review (What's this?)
 
i have installed nothing but infinity speakers in my car, my whole family loves the sound these put out. you can hear everything from the people singing, very clearly, to some nice bass. if you feel you need more boom boom get a subwoofer also. To me these are top of the line.
Pros:
clear crisp sound, very very good quality
Cons:
spent two hours cutting dash to get them to fit, tedeous but worth it
1 out of 1 people found this helpful
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5 out of 5

These Speakers are Niceeee.

Written By Kaba, Upper Marlboro,MD on Monday, January 31, 2011
Crutchfield Customer Review (What's this?)
 
Mannnnnnn these speakers are nice. installed it in my 88 K5 Blazer and they are clear, i'm telling you. if you are looking to get these speakers you won't be disappointed. Its like the music is in your ears lol. 5 Stars all the way. Go ahead and add it to your chart Cause you will love it. Best Speakers i have ever had.
5 out of 5 people found this helpful
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5 out of 5

Exceptional Speakers

Written By FrostEternal, Faribault, MN on Tuesday, July 20, 2010
 
I was using a pair of Sony xPlod series I got a year ago, which I replaced with these Infinities.

Where before I had to have the volume at 24 on my head unit, I only need to reach 17 with the Infinities to have the same loudness. Mid range and subtle detail which was absent before is noticeable now. I'm happy with my purchase, indeed.

5 out of 5 people found this helpful
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5 out of 5

Great Speakers

Written By Phillip, Chesapeake, VA on Thursday, February 12, 2009
Crutchfield Customer Review (What's this?)
 
I just installed a pair of these in the dash of my 2008 Highlander. They really opened up the mid/high range of my music. The website shows that they don't fit, but that's for the front/rear doors. If you're not afraid of cutting away a little plastic (hidden by the factory speaker cover anyway), I highly recommend them as a replacement.
11 out of 12 people found this helpful
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For a more in-depth review and enhanced detailed information on the Infinity Kappa 32.9cf, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_108329CF/Infinity-Kappa-32-9cf.html ).