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Infinity Kappa 86cfx

6"x8" 2-way speakers

Item # 108K86CFXM

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.

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Please click here for your Proposition 65 warning.

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Item # 108K86CFXM

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$209.95 Sale: -$42.00 off

$167.95 pair

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About the Infinity Kappa 86cfx

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 86cfx 6"x8" 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 86cfx 6"x8" 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.

READ LESS

Product highlights:

  • 6"x8" 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 100 watts RMS (300 watts peak power)
  • frequency response: 40-25,000 Hz
  • sensitivity: 94 dB at 2.83 volts
  • top-mount depth: 2-5/16"
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # KAPPA-86CFXAM

What's in the box:

  • Two 2-way speakers
  • 2 Bottom mount adapter rings
  • 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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More details on the Infinity Kappa 86cfx

Pat M.

Features & specs

General
Speaker Size 6X8
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 40 - 25k Hz
Minimum RMS Wattage ---
Maximum RMS Wattage 100
Peak Power Handling (Watts) 300
Top-mount Depth (Inches) 2 3/8
Bottom-mount Depth (Inches) 2 15/16
Cutout Diameter or Length (inches) 0
Mounting Height (Inches) 0.635
The Infinity Kappa 86cfx replaces these items:

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.

UniPivot Tweeter: The tweeter is angled and can be rotated about 270° after installation. This allows you to direct the tweeters toward the listeners, very useful for speakers mounted low in a door.

Mounting Applications: Infinity describes these speakers as 6x8, but they also fit many 5x7 applications. Please enter your vehicle information to confirm fit.

Terminals: The input terminals are set screws that will accept up to 12 gauge bare wire.

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Customer Q&A

3 questions already asked

Q
This is listed as not fitting 2006 F150 standard cab, but the infinity reference of the same size are shown as a fit, I am wondering what is the difference between these or if they will fit my f150?
[ Teddy  Sep 16, 2019 ]
3 answers
A
Teddy, I have a 2013 F150 so the size may be different but I too noticed that these 6x8's fit in my truck while others did not. I believe that the issue is depth, specifically with the magnet coming in contact with the window and window structure. The Infinity Kappa 6x8 fit but I did check with a borescope and saw that there was not much "extra" clearance behind so perhaps other speakers have larger basket and or magnet assembly causing a clearance issue/contact between the magnet and window.
[ Evan  Sep 17, 2019 ]
A
I have a 2011 f150
[ Garrett  Sep 16, 2019 ]
A
I don't know specifically, but they may be of a different depth, and may not fit for that reason. They worked in my 2014 F150, but the truch chaged quite a bit in between those years.
[ Michael  Sep 16, 2019 ]
Q
Why is this product listed as not fitting a 2014 Mustang?
[ Richard  May 25, 2019 ]
1 answer
A
I'm pretty sure that 2014 mustangs have 5-1/4" door speakers. These are too big
[ Andre Decarlos  May 26, 2019 ]
Q
I am looking at replacing my Infinity Kappa 62.11i in my 2006 Navigator running a JBL Gx-A604 amp. The factory hole is 6x8 so I think the size will fit. My concern is my current speakers are 2ohm and these say they are 2.5ohm. Will 2.5ohm work with my amp? I'm looking for speakers that will sound as good as my current ones but will fit better. The previous owner put round speakers in a 6x8 hole without adapters and caused the plastic to crack.
[ Andrew  Mar 23, 2019 ]
1 answer
A
The stock mounting pattern is for a 6x8 speaker. As long as the crack isn't too bad, I expect you will be able to still use the stock mount and get these speakers installed. The 2.5 ohm will work with your JBL amp. It's so close to 2 ohms, that there will not be much, if any, noticeable difference in volume levels and these speakers will produce a fuller sound with lower bass than the 62.11i speakers can produce My Bio: https://www.crutchfield.com/bio/Paul
[ Paul  Apr 08, 2019 ]  Staff

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