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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
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Availability: 11 left in stock
Fulfilled by Amazon
Arrives Sunday, Jun 14
Order within 9 hours and 34 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


Audio Output Mode: Stereo, Surround


Mounting Type: Flush Mount


Enclosure Material: Polypropylene, PEI


Speaker Type: Coaxial


Additional Features: 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


Antenna Location: For Surround Sound Systems


Subwoofer Diameter: 4.96 Centimeters


Color: Black


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Touch


Speaker Size: 6.5 Inches


Woofer Diameter: 6.63 Inches


Specific Uses For Product: Car Audio Systems


MP3 player: No


Speaker Maximum Output Power: 300 Watts


Input Voltage: 12 Volts


Unit Count: 1.0 Count


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


Item Weight: 2.8 Pounds


Compatible Devices: MP3 Player, Smartphone, Tablet


Compatible with Vehicle Type: & SUVs, Select Cars, Truck


Audio Driver Type: Dynamic Driver


Audio Driver Size: 6.5 Inches


Brand: Kenwood


Model Number: KFC-1666S


Model Name: KFC1666S


Built-In Media: 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


Warranty Description: 1-Year Manufacturer Warranty


Number of Items: 1


Customer Package Type: FFP


Series Number: 1666


UPC: 019048222879


Global Trade Identification Number: 79


Manufacturer: KENWOOD


Frequency Response: 22000 Hz


Number of Audio Channels: 2.0


Impedance: 4 Ohms


Connectivity Technology: Wired


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: Wired (Aux, RCA, Speaker Wire)


Power Source: Corded Electric


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 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
    • Great upgrade for $40
Swapped out my two rear speakers on my 2022 Lexus is350, huge improvement over the stock ones, more clarity, bass is decent but doesn’t matter cause I have subs. Great price, worth the upgrade.
Reviewed in the United States on April 9, 2026 by holeechit
    • Decent but mid range could be better.
Installed in 2014 Subaru Tribeca in front door kick panel. Not a plug and play replacement. I had to drill some holes in the door frame which the cardboard template helped greatly. Separate tweeter sounds good but disappointed in the mid range. Could be louder and deeper in the mid. Did not have need for screens. Would have liked a foam gasket provided since I was installing on bare metal. ... show more
Reviewed in the United States on December 8, 2025 by RJFelt
    • Good quality
The quality is very good and really improved the sound system in my car
Reviewed in the United States on May 18, 2026 by Heather
    • 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
    • Great at the cost point
Work great for the price
Reviewed in the United States on March 28, 2026 by Kevin Hopkins
    • 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
    • Lots of mids and highs, but still great replacement speakers
Lots of mids and highs if you're installing these speakers in rear doors. Bass is almost unnoticed, but remember it's a 6 ½ in size speaker. Look great if installing with grill. Easy to connect with required adapter for Nissan vehicles. For less than 40 dollars they're ok. Better than blown original speakers. ... show more
Reviewed in the United States on December 30, 2025 by Alonzo

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