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Kenwood

Kenwood KFC-1666S Car Stereo Speaker 6-1/2" 2-Way Speakers with Powerful Sound and Easy Installation - Elevate Your Car Audio

  • Based on 1,531 reviews
Condition: New
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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Dec 14
Order within 13 hours and 49 minutes
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Features

  • Superior Sound Reproduction - Experience immersive audio with KENWOOD Car Stereo Speaker KFC-1666S, featuring 6-1/2" 2-way speakers, delivering impressive clarity and powerful bass.
  • Enhanced Audio Performance - The polypropylene woofer with treated cloth surround ensures precise and impactful bass response, while the 1" PEI balanced dome tweeter produces crisp and detailed highs
  • Effortless Installation - Grilles are thoughtfully included, making installation a breeze and providing added protection to the speakers, ensuring a seamless upgrade for your car's audio system
  • High Power Handling - These speakers handle up to (300 watts peak power), allowing you to turn up the volume without compromising on sound quality
  • Wide Frequency Range - With a frequency response of 40-22,000 Hz and impedance of 4 ohms, the KFC-1666S covers a broad range of frequencies, delivering a well-balanced audio experience with a sensitivity of 90 dB

Brand: Kenwood


Speaker Maximum Output Power: 300 Watts


Frequency Response: 22000 Hz


Connectivity Technology: Wired


Audio Output Mode: Stereo, Surround


Input Voltage: 12 Volts


Mounting Type: Flush Mount


Material: Plastic


Model Name: KFC1666S


Speaker Type: Coaxial


Special Feature: car stereo, double din car stereo, pioneer car stereo, car stereo bluetooth, kenwood car stereo, bluetooth car stereo, pioneer double din car stereo, alpine car stereo, android car stereo, touch screen car stereo, single din car stereo, car stereo with backup camera, sony car stereo, indash car stereo touch screen, double din car stereo with navigation, 2 din car stereo, car stereo harness, car stereo wire harness, car stereo wire harness connectors, posi car stereo wire harness connectors


Recommended Uses For Product: For Surround Sound Systems


Compatible Devices: MP3 Player, Smartphone, Tablet


Subwoofer Diameter: 4.96 Centimeters


Unit Count: 1.0 Count


Surround Sound Channel Configuration: 2.0


Color: Black


Included Components: Two 2-way speakers, 2 Grilles, Two 12" Lengths of speaker wire (each has female quick-slides on one end and bare wire on the other), Eight 1" Screws, 8 Speed clips, Warranty information, Specifications and template on the box


Product Dimensions: 3.6"D x 7.6"W x 13.5"H


Item Weight: 2.8 Pounds


Impedance: 4 Ohms


Is Waterproof: FALSE


Warranty Type: Limited


Number of Items: 1


Control Method: Touch


Wireless Communication Technology: No Wireless Communication Technology


Speaker Size: 6.5 Inches


Power Source: Corded Electric


Woofer Diameter: 6.63 Inches


Customer Package Type: FFP


Audio Driver Type: Dynamic Driver


Audio Driver Size: 6.5 Inches


Subwoofer Connectivity Technology: Wired


Series Number: 1666


UPC: 019048222879


Style: KFC-1666S


Global Trade Identification Number: 79


Manufacturer: KENWOOD


Shape: Rectangular Prism


Set Name: Pair


Item Weight: 2.8 pounds


Item model number: KFC-1666S


Is Discontinued By Manufacturer: No


Date First Available: January 31, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Dec 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Incredible Sound at an Affordable Price – Perfect for Easy Audio Upgra
I recently purchased the KENWOOD KFC-1666S 6-1/2" 2-Way Car Stereo Speakers, and I have to say, they have far exceeded my expectations. The sound quality these speakers provide is nothing short of impressive. They deliver crisp highs and clear mid-range tones, making my daily drives much more enjoyable. The bass, while not as deep as you might get with a dedicated subwoofer, is still solid for a 2-way speaker and adds a nice depth to the music. If you're looking for a well-rounded audio upgrade that really enhances your in-car listening experience, these speakers are an excellent choice. One of the best aspects of these speakers is how easy they are to install. I was able to get them set up in my car without any hassle, and they fit perfectly in the existing speaker mounts. Even if you're not particularly experienced with installing car audio equipment, you shouldn’t have any trouble getting these up and running. What really stands out, though, is the incredible value for the price. These speakers are very affordable, but the sound quality they deliver is far better than you would expect for something in this price range. It’s rare to find such an inexpensive option that still offers such high-quality performance. If you're on a budget but don’t want to compromise on sound, these speakers are a fantastic deal. Overall, I’m really pleased with this purchase and would highly recommend these KENWOOD speakers to anyone looking for a quick and easy way to elevate their car’s audio system without breaking the bank! ... show more
Reviewed in the United States on October 8, 2024 by Travis
    • Good value good sound
I'm giving this a 5 star value rating. I installed in my 72 Chevy C20, mounting them in a pair of kick panels that are under the dash on each side by your feet and designed for speakers. They will accept full power from the stereo without distortion. Not a lot of bass obviously but good mid and high range - to be expected from 6 1/2" speakers. They sound good and in my standard cab can be plenty loud. ... show more
Reviewed in the United States on October 29, 2025 by DK
    • They work
These speakers are better than nothing, and with proper placement they can produce good sound. I installed them in my 2017 Forester, but because the mounting location was low—almost down by my ankles—the audio sounded muddy. I later moved them to my 2000 Silverado, where they sounded better due to being positioned higher on the door. When I installed them in a box at about shoulder height, the sound was optimal. ... show more
Reviewed in the United States on November 30, 2025 by Ray Smalley
    • Tought to beat for the money.
Four of these in my Daughters Honda Civic when the factory speakers died. They really sound quite nice. I installed professionally back in the 80's, doing some pretty high-end installs. But I have to say, Kenwood speakers never disappointed me, and for the money they were and still are bargains. These cost less today (in inflation-adjusted dollars) as they did 40 years ago. Kenwoods and Pioneers for the money were tough to beat. They're durable, efficient (important if using a factory head unit with no Amplifier) sound nice and priced right. ... show more
Reviewed in the United States on September 1, 2025 by Glenn H. Cole
    • Nice upgrade to factory speakers
2015 Kia Forte LX base audio system. I installed these a few days ago and I am honestly over the moon with the improvement these have made to my vehicle sound! I haven't changed the head unit out yet but these new speakers are so much clearer and louder. Used to have to run it at max volume literally all the time but now right above the midpoint is loud enough. Bass is not a huge improvement but that's to be expected. New more powerful head unit should take care of that and I may do subs eventually...undecided. I just bought one set to do the fronts I will ABSOLUTELY be buying another set in the next few days or so to do the back set. I went with Crutchfield for speaker adapters and I got these installed in about 20 minutes - very straightforward! Will update this with any problems I have. ... show more
Reviewed in the United States on October 29, 2025 by Julius M
    • No bass
Clear sound but no bass , My OEM honda accord 2022 speakers was better
Reviewed in the United States on November 6, 2025 by Saad
    • Great seller
Very fast ship and great product best price
Reviewed in the United States on November 24, 2025 by Richard
    • Perfect fit
Very good quality speaker crisp sound also fits perfectly in a 2013 Toyota tundra but you have to buy speaker adapters but overall I definitely recommend
Reviewed in the United States on November 16, 2025 by Benjammer

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