Kenwood Excelon KFC-X683C

6"x8" 2-way car speakers

Item #: 113KFX683C

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14 Reviews | Ask Questions

Free Installation gear for most cars

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Kenwood Excelon speakers incorporate technical know-how and advanced materials to give your music the full, rich sound it deserves. These full-range speakers sport a diamond-array pattern etched into their woofers that increases the strength of the carbon-polypropylene cone for improved dynamic response and lower distortion. The butyl rubber surround resists weathering, providing reliable support that keeps your music playing, no matter what.

The KFC-X683C 6"x8" full-range speakers feature 1-3/16" balanced dome tweeters that deliver all the high-frequency details without sounding harsh. Because of their specially designed magnetic circuitry and neodymium magnets, these compact tweeters use less steel in their construction than most tweeters, so you hear more accurate response.

Priced per pair

Product Highlights:

  • 6"x8" 2-way car speakers (pair)
  • Diamond Array Pattern carbon-polypropylene woofer
  • butyl rubber surround
  • 1-3/16" PEI balanced dome tweeter
  • power range: 2-60 watts RMS (180 watts peak power)
  • frequency response: 80-21,000 Hz
  • sensitivity: 88 dB
  • depth: 2-9/16"
  • warranty: 2 years
  • Our 60-day money-back guarantee

Why replace your car's original speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way 6x8" speakers
  • Two 11" lengths of speaker wire (each has female quick-slides on one end and bare wire on the other end)
  • 8 Self-tapping screws
  • Warranty Card

Features and Specs

Design 2-way
Tweeter Design 1-3/16" Balanced Dome
Tweeter Composition PEI
Woofer Composition Carbon Polypropylene
Woofer Surround Butyl rubber
Parts Warranty 2 Years
Labor Warranty 2 Years
Sensitivity 88 dB at 1 watt
Frequency Response 80 - 21k Hz
RMS Power Range (Watts) 2-60
Peak Power Handling (Watts) 180
Impedance (Ohms) 3
Top-mount Depth (Inches) 2 9/16
Bottom-mount Depth (Inches) N/A

Product Research


Woofers: The woofer cones are constructed of Carbon-PP (polypropylene) with a diamond array pattern.  The woofers feature butyl rubber surrounds for a smoother response and improved durability.

Tweeters: Each speaker uses a 1-3/16" PEI balanced-dome tweeter. PEI (Poly-Ether Imide) is a polymer film that has ideal sound characteristics, making it perfect for use as a tweeter. A PEI balanced-dome tweeter produces a wide soundstage for superior imaging.

Custom Fit: The 6x8" speaker's frame features two additional mounting holes which allows the speaker to fit in 5x7" openings of select Ford and Mazda vehicles.

Warranty Note: Although these speakers come with a 1-year warranty card, they are covered by the Kenwood eXcelon 2-year warranty.

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.

Kenwood Excelon KFC-X683C Reviews

Average Customer Review:

14 reviews
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Kenwood Excelon KFC-X683C

Written By Jim, Minnesota on Tuesday, September 30, 2014

Crutchfield Customer Review (What's this?)

I installed 4 of these in a 2012 For Escape. There is a nice update in sound clarity, but the bass doesnt keep up with the head unit Crutchfield recommended for me. I'll likely need a subwoofer to fill in the lows.

Pros: Cheap Increased Clarity

Cons: Bass distorts, even though RMS is within range

Nice upgrade

Written By DaveC, Elizabethtown, PA on Sunday, August 17, 2014

Crutchfield Customer Review (What's this?)

Simple swap in my 2012 F150 FX4 Super cab. Using factory head unit and no amp yet. I replaced all 4 speakers. Big difference between these and the stock speakers. Now very crisp and clear sound all around. Bass is cleaner and has more punch.

Pros: Easy install with wiring harnesses.

Cons: none yet


Written By JW, Frederick, MD on Saturday, August 09, 2014

Crutchfield Customer Review (What's this?)

I inherited a 2000 Ford Contour Sport. The only way I was going to drive this car was with a new sound system. These speakers are powered by a Kenwood head unit, with no amp in between. I have them in the back doors with Kenwood 3-ways in the front. The sound they produce together is fantastic and way beyond the factory speakers that came in the car.

Pros: Super easy to install.

Cons: None.

Great sound

Written By Justin, Griffin Georgia on Saturday, May 10, 2014

Crutchfield Customer Review (What's this?)

I replaced all 4 factory speakers in my 98 F-250. The sound quality of these speakers surpass my wildest expectations. You can not go wrong with these speakers and I got the discount because I paired them with a kenwood receiver. I love the sound and Crutchfield is the best.

Good stuff!

Written By Glenn W, S.E. WI on Thursday, April 24, 2014

Crutchfield Customer Review (What's this?)

I bought these beause I was so disappointed with the Kenwood KFC-C6865S "Sport Series" ones I bought originally. These KFC-X683C "eXcelon" are the real deal. Couldn't be happier with these in the front doors of a E350 Super Duty van w/OEM 6-speaker radio. I will be adding them in the back doors when time permits.

Pros: Clean sound over the entire spectrum. Clean highs, midrange, and more bass than I'd expected from speakers this size.

Cons: None.

Excellent speaker

Written By JDK, Groves, TX on Saturday, March 01, 2014

I would definitely buy these again. They have a pleasant, fairly neutral tone that isn't too bright. I usually prefer my music to be balanced, and these do that nicely.

Pros: Pleasant, neutral tone. Fairly full range. Decent power handling range. 3 ohm.

Cons: Trying to figure out 3 ohm wattage in a sea of 4 ohm wattage. Based on my calculation you're safe running a 45w@4ohm amp assuming it's 3 ohm stable. I really think that while these do a good job on bass, but if you've ever had a sub before, I think you'll still want one. With these you hear the bass drum beats, but you don't feel them. Really not a bad trade off. Excellent all round speaker but lacks that thump at low volume. Subs do that better.

Great speaker

Written By Brandon, Owings Mills, MD on Wednesday, May 08, 2013

Crutchfield Customer Review (What's this?)

Great speaker & simple install. Highs are crisp and clear and it has a solid woofer to produce a balanced sound. These are in my front doors and I love them. Solid product, constructed very well, and are sure to last a long time. I don't have these amped, they're powered by a Pioneer AVH-P4400BH DVD Receiver

Pros: Solid construction, quality & balanced performance

Cons: None

Very pleased

Written By Dluedke, Paxton NE on Friday, April 19, 2013

Crutchfield Customer Review (What's this?)

I am very pleased with these speakers. I installed them in my 2013 F150 super crew to replace factory speakers with the factory Ford sync system. At first I was a little skeptical when I was installing them but once they were installed and I took the first listen I was sold. The fit is perfect and install was easy. Now the sound, I consider myself to be picky and these speakers sound good to me. They are very well balanced I started with the EQ in the middle and the only adjustment I have done is to up the bass one notch. In all fairness I did leave the factory tweeters in the front pillars hooked up I like the sound stage to be a little high up and they seem to blend every well. Also I have a sound ordnance self contained sub but I had to turn it way down other wise the bass was to heavy.

Pros: Well balanced great sound with factory head unit.


Written By bemery89, Dallas, TX on Wednesday, March 27, 2013

Just installed these in my 2013 mustang, in the rear deck! Man o man these babys rock. I listen to all music genres, and they vibrate the seat! Huge improvement over factory! Great bass with out the factory speaker distortion! They sounded great as soon as I plugged them in, no speaker break in required!

Sounds Great!

Written By Anonymous, Green Bay, WI on Thursday, January 17, 2013

So after much debate between different speakers I went with the Kenwood Excelon 2-ways. Went to the local electronics store and to my surprise the kenwoods sounded much better than the rest. The Alpine type S, Infinity reference and Polk 6x8's sounded flat and not nearly as full as the Kenwoods. Was sold and like always Crutchfield included the printed instruction sheet on installation and factory speaker connectors. Also the fit was perfect in a 2006 Ford Ranger with Alpine receiver and power pack...sound is great!

Pros: Nice full sound, great highs and mids along with a good bass presence

Nice improvment

Written By Jim, Rock Springs, WY on Tuesday, April 03, 2012

Crutchfield Customer Review (What's this?)

Nice improvment over factory speakers and even with the factory radio. The install instructions included was a life saver.

Pros: Great sound and easy installation.

Cons: None

Very Satisfied

Written By Anonymous, Santa Maria on Wednesday, September 08, 2010

Crutchfield Customer Review (What's this?)

i bought these to replace the back speakers in my 91 f250 and they sound awesome.... definitely worth the money.

Kenwood Excelon KFC-X683C

Written By rob, Fort Collins, CO on Friday, July 02, 2010

I installed these in the front doors of my 2007 Ford Freestyle. I was blown away by the difference I noticed immediately. I am running them from the factory head unit and they still sound great and have a nice kick.

After installing these I went and purchased a pair for the rear doors because the factory speakers can't even keep up with these Kenwoods.

Great speakers

Written By Jonathan, Tacoma, WA on Thursday, May 13, 2010

Crutchfield Customer Review (What's this?)

These speakers really upped the sound quality in my 2008 Ford Taurus X. I installed them in the front and rear doors and they are a noticable upgrade over the factory set. I am running them with the Kenwood DNX-9140 head unit. The build quality seems to be pretty good. I also installed some speaker baffles to help protect them and enhance the sound. Overall I am extremely satisfied with these speakers.

Get everything you’ll need to enjoy your new Kenwood Excelon KFC-X683C

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
You'll need speaker wire to connect your speakers to your amp.
Keep your speakers clean and dry. They compress to fit behind your speakers.
These speaker connectors are handy if you're running new speaker wire or if your speakers have oversized terminals.
The right tools will help keep your installation simple and clean.
Dynamat 10415 Xtreme Speaker Kit

Dynamat 10415 Xtreme Speaker Kit

Two 10-in. x 10-in. Sheets

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Dynamat 10435 Xtreme Door Kit

Dynamat 10435 Xtreme Door Kit

With four 12" x 36" sheets — covers two doors

Item #: 15410435


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Dynamat SuperLite Tri-Pak

Dynamat SuperLite Tri-Pak

Triple package — 3 sheets, 12 square feet (Model #10612)

Item #: 15410612


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T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1


T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1


Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B


Boom Mat 6

Boom Mat 6"x8" Speaker Baffles

Protect your speakers
Regular and slim-line sizes (Slim-line: 3-1/2" depth)

Item #: 696B050371


Add to Cart

XTC 6"x8" Speaker Baffles

Protect your speakers

Item #: 237XT68


Metra Female Quick Slides

Metra Female Quick Slides

An assortment of female quick slide connectors for connecting to speaker terminals

Item #: 120FQS10PK


Metra Crimp Tool and Connectors

Metra Crimp Tool and Connectors

Package contains crimp tool and over 150 pieces

Item #: 120CRIMPKT


Add to Cart
S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

Item #: 18119100


Add to Cart
S&G Tool Aid 87615

S&G Tool Aid 87615

Window and Door Clip Removal Tool

Item #: 18187615


S&G Tool Aid 87650

S&G Tool Aid 87650

Door Trim and Panel Removal Tool

Item #: 18187650


Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6NGL


Add to Cart
Skewdriver Pro SPK4042

Skewdriver Pro SPK4042

Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)

Item #: 180SPK4042


Add to Cart
Spec Tools SQR-200a Squeeze Wrench

Spec Tools SQR-200a Squeeze Wrench

Narrow space ratchet kit with 18 sockets

Item #: 180SQR200A


Add to Cart
Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6LNGL


Add to Cart
Posi-Products™ Car Speaker Connectors

Posi-Products™ Car Speaker Connectors

8 connectors for installing car speakers

Item #: 669PP502


Add to Cart
DEI Heat Shrink Tubing

DEI Heat Shrink Tubing

Black 4-foot length (Assortment)

Item #: 696010839


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