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Infinity Kappa 64cfx

4"x6" 2-way plate car speakers

Item # 108K64CFX

Infinity's reputation is legendary, but their Kappa Series car speakers don't rest on those laurels.

Find what Fits your car

Infinity's reputation is legendary, but their Kappa Series car speakers don't rest on those laurels.

Item # 108K64CFX

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In stock
C$249.99 pair
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About the Infinity Kappa 64cfx

The legend continues...

Infinity's reputation is legendary, but their Kappa Series car speakers don't rest on those laurels. Designed and built for audiophile tastes, these Kappa 64cfx 4"x6" speakers benefit from a refined design, Infinity's proprietary technology, and premium materials to deliver uncompromised audio quality. 

The legend continues...

Infinity's reputation is legendary, but their Kappa Series car speakers don't rest on those laurels. Designed and built for audiophile tastes, these Kappa 64cfx 4"x6" speakers benefit from a refined design, Infinity's proprietary technology, and premium materials to deliver uncompromised audio quality. 

Edge-driven dome tweeters

Infinity employs an edge-driven design in their soft dome tweeters for a smoother, more open response and minimal distortion at high volume. The UniPivot tweeter design means you can aim each tweeter toward your ears, so you'll enjoy excellent stereo imaging even if the speakers are mounted way down low in your doors. Each tweeter also features a level control button so you can adjust the brightness to your taste.

Woofers enhanced with Plus One+ technology

Bring on the bass. Kappa's glass fiber woofer will hold its shape when the power's cranked up, so you still get punchy and defined bass. Glass fiber weighs less than traditional materials, so you don't need a ton of power to drive this woofer either. Infinity's Plus One+ woofer technology extends the cone right up to the edge of the basket, giving you lots of surface area — and a bigger cone means more bass to complement the superior high-frequency response.

Awesome power handling, no matter the system

These 2.5-ohm speakers boast ultra-high sensitivity so that you can power them with a factory radio or aftermarket stereo, but you'll get your best results feeding them plenty of power from an outboard amp. Either way, these speakers' low impedance safely takes advantage of every watt of power available for exceptional performance. Enjoy Kappa sound quality at any volume.

Grilles are not included; the factory grilles should be suitable for most applications.

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Product highlights:

  • 4"x6" 2-way car speakers
  • Plus One+ glass-fiber woofer cone with hi-roll rubber surround
  • edge-driven, soft dome tweeter
  • 2.5-ohm impedance
  • grilles not included
  • handles up to 60 watts RMS (225 watts peak power)
  • frequency response: 75-25,000 Hz
  • sensitivity: 94 dB at 2.83 volts
  • top-mount depth: 1-7/8"
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # KAPPA-64CFX

What's in the box:

  • Two 2-way speakers
  • 2 Adhesive backed foam gaskets
  • 2 Adhesive backed Infinity logo badges
  • Eight 1-3/8" Screws
  • 8 Speed clips
  • Template on box
  • Installation manual

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Infinity Kappa 64cfx reviews

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Infinity Kappa 64cfx

Crutchfield customer from Keyes, CA on 4/5/2019

2000 GMC Sierra 1500

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Very happy with my purchase. Crutchfields website made it easy to find the perfect fit for my truck. I've made multiple orders and haven't had an issue. A big thanks to crutchfield for taking the headache out of the buying process.

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Infinity Kappa 64cfx

Wilson from Hallieford, VA on 3/14/2019

2004 GMC Sierra 1500

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Replaced my factory rear door speakers in my 2004 GMC extended cab pickup with the Kappa 64cfx and they pair well with my FOCAL AS165 front speakers. I actually hear the rear speakers now.

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Infinity Kappa 64cfx

Sean from Hephzibah, GA on 8/19/2018

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Sean from Augusta,Ga. 08/17/18 The 4x6's fit perfect in the factory option (w/speaker) kick panels offered in 1969....for my 1969 Camaro.Speaker frames hole pattern perfectly match period correct grill covers that came with "speaker option kick panels".The speaker depth was not an issue either.The speakers sound fantastic! Thanks Crutchfield for Happy Muscle Car owners....who don't have to carve up there interiors in order to achieve great quality modern day sound. "Speaker option kick panels"were purchased from: heartbeatcitycamaro.com

Pros: Great sound and Perfect fit for 1969Camaro with factory optioned "kick panels with speaker".

Cons: Could use a little more mid range level.

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Infinity Kappa 64cfx

Crutchfield customer from Cincinnati, OH on 8/3/2018

2003 Chevrolet Silverado 1500

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They sound amazing have a great sound quality in all ranges

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Wonderful!

David L. from Westbrook, ME on 7/26/2018

1992 Volkswagen Cabriolet

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Fits with a little work, but the sound is amazing.

Pros: Ease of install, the sound is amazing

Cons: Some slowly drilling of holes to make it work in my car

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Infinity Kappa 64cfx

Danny from Meridian, TX on 6/3/2018

2001 Jeep Wrangler

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Absolutely great speakers!! They sound awesome in my Jeep

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2 of 2 found this helpful

Mounted Perfectly and Sound Beautiful

Benny from Strasburg, PA on 2/3/2018

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Bought these speakers to put in a 98 Peterbilt 379 with a bunk to replace the stock speakers. Not only did they have holes that worked perfectly with the stock dust covers and the mounting upholstery washers, but they really push low frequency and mid range well which mixes nicely with the high frequency. Obviously being only 4 x 6 speakers they won't wake the neighborhood with volume, but they will certainly be able to blow your eardrums with well-mixed sound.

Pros: Mounting holes cover most applications Great sound for being small speakers Well mixed sound right out of the box

Cons: Small negative pin won't allow use of old speaker plugs, but you can just wire a new one up

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Infinity Kappa 64cfx

Rich from Peabody, MA on 1/12/2018

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2007 peterbilt replaced factory cab and sleeper 4x6 speakers , 2 ohms louder and clearer that stock speakers very happy

Pros: *****

Cons: 0

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More details on the Infinity Kappa 64cfx

Pat M.

Features & specs

General
Speaker Size 4X6
Design 2-way
Tweeter Design Edge-Driven Dome
Impedance (Ohms) 2.5
Tweeter Composition Textile
Woofer Composition Glass Fiber
Woofer Surround Rubber
Parts Warranty 3 Years
Labor Warranty 3 Years
Specifications
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 94
Frequency Response 75 - 25k Hz
Minimum RMS Wattage ---
Maximum RMS Wattage 60
Peak Power Handling (Watts) 180
Top-mount Depth (Inches) 1 15/16
Bottom-mount Depth (Inches) 2 3/16
Cutout Diameter or Length (inches) 0

Product Research

Features

Plus One Woofer Cones: The Plus One speaker cones offer more surface area than other speakers that fit in the same size opening. This is accomplished by using a new basket design and hi-roll surround. The result is greater bass output and an increase in efficiency.

High-Output Design: The high output 2.5Ω 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 4Ω speakers). The speakers also benefit from increased power when you upgrade the wire and add aftermarket amplifiers, designed to power a 2.5Ω load.

Edge Driven Dome Tweeters: Each speaker has an Edge-driven textile dome tweeter. Edge-driven tweeters have better dispersion characteristics and allow for a lower crossover frequency than typical tweeters of the same size, which improves imaging. The result is improved vocals and musical clarity. The tweeter also has an output level switch; choose +0 dB (flat) or +3 dB.

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Customer Q&A

2 questions already asked

Q
do these come with covers or do you sell them separately?
[ Jody  Aug 10, 2018 ]
2 answers
A
Yes they do come with the cover plates.
[ Michael  Aug 20, 2018 ]
A
No covers. Use the ones you currently have. I own a peterbilt reused my Pete covers works fine... people think they are stock speakers because the covers say peterbilt on them. One less item for them to think about stealing.
[ CRAIG A  Aug 20, 2018 ]

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