Kenwood KFC-1679ie

6-1/2"/6-3/4" 2-way car speakers

  • Kenwood KFC-1679ie


Item #: 113KFC1679

Review Summary

This item is no longer available to purchase.
Contact us for other options
Call   Email  

Our take on the Kenwood KFC-1679ie

by Todd Cabell

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.

See all of our Special Edition Kenwood products

Treat your ears to a fuller, richer soundstage! Kenwood has adapted anti-diffraction home speaker technology to their Image Enhancer series car speakers. A smooth, domed ring around the PEI balanced dome tweeter virtually eliminates "bounce back" — reflected sound waves that interfere with direct sound coming from the tweeter itself. The result is wider "sweet spot" dispersion and more accurate mids and highs.

The KFC-1679ie knocks out satisfying bass from a 6-1/2" pearl-mica injection-molded poly woofer. The KFC-1679ie also has mounting tabs for oversized 6-3/4" applications.

See more info on this item


  • 2-way 6-1/2"/6-3/4" speakers (pair)
  • pearl-mica injection-molded polypropylene woofer with urethane surround
  • 1-3/16" PEI balanced dome tweeter
  • recommended power range: 2-40 watts RMS
  • 160 watts peak power handling
  • frequency response: 35-25,000 Hz
  • sensitivity: 92 dB
  • depth: 1-7/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Priced per pair

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

Features and Specs
Design 2-way
Tweeter Design Balanced Dome
Tweeter Composition PEI
Woofer Composition Pearl Mica IMPP
Woofer Surround Urethane
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity 92 dB at 1 watt
Frequency Response 35 - 25k Hz
RMS Power Range (Watts) 2-40
Peak Power Handling (Watts) 160
Impedance (Ohms) 4
Top-mount Depth (Inches) 1 7/8
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 5 1/8
Product Research
What's in the box?

Download owner's manual

  • Two 6-1/2" speakers
  • 2 Grilles
  • Two 14-1/2' lengths of 24-gauge speaker wire (with female quick slides on one end and bare wire on the other)
  • Six 1" self-tapping screws
  • 6 Speed clips
  • Warranty sheet
  • Important Safeguards sheet
  • Specifications/Instructions/Cutout template on carton

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.


Image Enhancer: The KFC-1679ie is equipped with Kenwood's patented Image Enhancer surrounding the tweeters. Its smooth rounded surface eliminates most of the reflected sound waves that would interfere with the direct sound waves coming from the tweeters. The end result is a better dispersion pattern, less distortion, and clear high-frequency reproduction. 

Woofers: The woofer cones are silver Pearl Mica Injection-Molded Polypropylene. Uniform pearl mica crystals form an overlapping structure that adds strength and heat resistance to polypropylene; the result is reduced distortion and improved reliability.

Tweeters: The speakers have a 1-3/16" PEI balanced dome tweeter. A semi-dome tweeter has a dome placed inside a cone. "Balanced dome" tweeters are semi-dome tweeters with equal reproduction area given the cone and dome portions of the tweeter.

Surrounds: The speakers have a urethane surround.

Grilles: The supplied hard plastic grilles have a unique 3-spoke design with a cutout for the Image Enhancer.

Mounting: The speakers can be mounted in a 6-1/2" opening, or, using the four mounting tabs, the speakers can be mounted in a 6-3/4" opening.

Review this product
Great Gear Giveaway rewards card

Submit a review and then enter to win a $500 rewards card

Kenwood KFC-1679ie Reviews

Average Customer Review:

3 people say:

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left
Filter by rating:
4 out of 5

Kenwood KFC-1679ie

Written By Justin, Bethlehem, PA on Wednesday, November 16, 2005
These speakers are just what I wanted. I wanted something with nice mids and highs that wouldn't distort at high volumes. These do the trick. I will be pairing these up a powered Kenwood sub so I'm not too concerned with the bass in these speakers. However, the bass is acceptable at reasonable levels. The higher you go the less detailed the bass sounds. More of just a flat "whap" instead of crisp bass. However, with the right high pass filter settings these speakers sound great at any level. I'm very satisfied with these. The only reason I gave them a 4 was because of the bass, but if you're looking for a configuration like I am, these are perfect.

Also, as a side note, I found that these speakers do fit into the front door of the 2005 Nissan Frontier if you use the 6x9 to 6.5 adapter bracket.
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
4 out of 5

Great sound at a good price!

Written By Jason H, Phoenix, AZ on Friday, September 09, 2005
Crutchfield Customer Review (What's this?)
When I first installed these, I was terribly disappointed. They sounded weaker than the OEM speakers. Well... after much tweaking on the new Kenwood head unit (KDC-X529), I got them to absolutely kick butt! Turns out the X529 defaults to an "OEM" speaker mode, where it 'goes easy' on what it assumes to be OEM speakers. Kick that over to the 6" setting, and the power is unleashed! HUGE improvement over the OEM! The only reason I gave them a 4 vs. a 5 is because you could certainly get more bass out of a component setup, but these are great in the low, and excellend in the mid and high! I highly recommend these!
5 out of 5 people found this helpful
Was this review helpful?    Yes | No
5 out of 5

Very solid speakers for the price

Written By Timothy, Washington ,DC. on Wednesday, April 20, 2005
These are impressive little speakers. Very good bass response when fitted with dynamat. Sounds much better than the stock JBL's that came in my Hyundai.

These won't fit in the standard Tiburon mounting holes, but with a few self tapping screws... problem solved.

Overall, I give these an A-
40 out of 51 people found this helpful
Was this review helpful?    Yes | No

Add accessories for the Kenwood KFC-1679ie

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car. See all categories & accessories

Dynamat 10415 Xtreme Speaker Kit Two 10-in. x 10-in. Sheets
45 people say
Your Price: $26.99
Add to Cart
T-Spec 12-gauge Speaker Wire Black/white jacket — priced per foot
29 people say
Your Price: $1.99
Add to Cart
XTC 6-1/2" Speaker Baffles Protect your speakers (Slim-line: 2-3/8" depth)
154 people say
Your Price: $7.99
Add to Cart
XTC 6-3/4" Speaker Baffles Protect your speakers (Slim-line: 3-3/8" depth)
32 people say
Your Price: $8.99
Add to Cart
S&G Tool Aid 87650 Door Trim and Panel Removal Tool
68 people say
Your Price: $9.99
Add to Cart
S&G Tool Aid 87615 Window and Door Clip Removal Tool
12 people say
Your Price: $7.99
Add to Cart

Why choose SquareTrade?

The #1-Rated Protection Plan

Thousands of people have reviewed SquareTrade Protection Plans — and made us #1.

5-Day Service Guarantee & Free Shipping

We'll repair or replace your item in five business days or less after we've received it, or your plan is free. And, as always, we pay for all shipping.

Protection from Normal, Everyday Use

Repairing your average mechanical or electrical failure can cost as much as buying a new device. With SquareTrade, you're covered — including parts and labor.

3 Year Protection Plan
3 Year Protection Plan
Your Price: $8.49
Add to Cart

For a more in-depth review and enhanced detailed information on the Kenwood KFC-1679ie, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_113KFC1679/Kenwood-KFC-1679ie.html ).