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The Kenwood KFC-1666S is a 6.5-inch 2-way coaxial car speaker system designed for superior sound clarity and powerful bass. With a peak power handling of 300 watts and a wide frequency response of 40-22,000 Hz, it delivers a rich, balanced audio experience. Its polypropylene woofer and PEI balanced dome tweeter ensure crisp highs and impactful lows. Easy to install with included grilles and mounting hardware, this speaker is a cost-effective upgrade for any car audio system.





| ASIN | B079HJB67X |
| 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 st… |
| Antenna Location | For Surround Sound Systems |
| Audio Driver Size | 6.5 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo , Surround |
| Best Sellers Rank | #4,978 in Electronics ( See Top 100 in Electronics ) #21 in Car Coaxial Speakers |
| Brand | Kenwood |
| 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 |
| Color | Black |
| Compatible Devices | MP3 Player, Smartphone, Tablet |
| Compatible with Vehicle Type | & SUVs, Select Cars, Truck |
| Connectivity Protocol | Wired (Aux, RCA, Speaker Wire) |
| Connectivity Technology | Wired |
| Control Method | Touch |
| Customer Package Type | FFP |
| Customer Reviews | 4.5 out of 5 stars 1,673 Reviews |
| Enclosure Material | Polypropylene, PEI |
| Frequency Response | 22000 Hz |
| Global Trade Identification Number | 00019048222879 |
| Impedance | 4 Ohms |
| Input Voltage | 12 Volts |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 3.6"D x 7.6"W x 13.5"H |
| Item Weight | 2.8 Pounds |
| MP3 player | No |
| Manufacturer | KENWOOD |
| Model Name | KFC1666S |
| Model Number | KFC-1666S |
| Mounting Type | Flush Mount |
| Number of Audio Channels | 2.0 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Series Number | 1666 |
| Speaker Maximum Output Power | 300 Watts |
| Speaker Size | 6.5 Inches |
| Speaker Type | Coaxial |
| Specific Uses For Product | Car Audio Systems |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 4.96 Centimeters |
| UPC | 019048222879 |
| Unit Count | 1.0 Count |
| Warranty Description | 1-Year Manufacturer Warranty |
| Warranty Type | Limited |
| Wireless Technology | No Wireless Communication Technology |
| Woofer Diameter | 6.63 Inches |
A**R
Kenwood kfc-1666s
These speakers are awesome, I put them in my 1958 ford and the clarity is awesome.. and price is amazing too. Definitely buying some more for my 1957 ford project
J**N
Good High/Mid very little bass (on stock head unit 15-20rms)
Good highs and mids pretty much no bass but I bought them because I have a subwoofer so I don’t need bass from the door speakers. These are definitely louder than my stock 2018 Camry se door speakers with factory head unit no amp but my stock did have some bass theses pretty much don’t if you have a sub and want new speakers without a amp these are great for louder high/mids go for it if you got a amp get something bigger for 30 dollars great lil speakers I had to buy a adapter for the speakers and wire harness for about 20
K**L
Quality replacement Speakers at a great price!
I installed these Kenwood 6.5" speakers in the front doors of my work vehicle 1998 Nissan Altima that had the factory original speakers that were making all kinds of noises. These speakers fit perfectly making installation very easy! The price was right for a good quality replacement speaker and considering I normally listen to talk radio or podcasts VIA my cell phone this was a solid investment. Thank you Amazon for yet another great transaction and super fast and professional delivery!
J**.
Moderate cost, Good preformance
Upgrade from standard Honda door speakers. Comes with tweeters build in good sound. For Grandsons car.
J**H
Good sound for the money you can,t beat it. Kenwood has been around for many years
Good speakers for the money. I have owned Kenwood stereo products for many decades and they never disappoint. They were not an excact fit but with a couple of sheet metal screws I installed them in my nissan Sentra front doors and they sound excelent. Would buy again.
M**D
Love these speakers
I put these in my 92 Nissan hardbody to replace the speakers that were in there when I bought it from somebody a few years ago they’re sound great and loud. What’s really impressive is it that I’ve got a 1992 hardbody that I bought from in front of somebody’s house for $900 I was delivering Chinese food at the time and I would deliver to this guy every so often and I would just ask him hey if you ever want to sell that truck no no no it’s my son‘s. He doesn’t wanna sell it but one day he’s like yeah my son wants to sell it and it wouldn’t start so I had to go buy a battery and at the time this is right before Covid before prices got crazy on everything and I got this little 1992 Nissan hardbody manual transmission for 900 had to put about 1000 into it to get things working properly, like a new fuel pump, plugs, and wires distributor but she’s a great truck and I love having a secondary vehicle that has no modern BS on it. It’d be really nice if they would make small trucks again especially with these crazy gas prices in 2026.
J**M
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.
A**O
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.
E**A
"Kenwood"...
... de buena apariencia, sonido de muy buena calidad, calidad en relación precio -calidad...
B**S
期待
カバー付きで厚みが薄くて軽トラのドアにも付くかと思い購入。納車後の取付が楽しみです。
أ**ي
سماعات سيارات
صوتها جميل و عالي وأدائعا رائع
A**N
Good sound for the price
I like the new sound in my car, gave life to the music bein play everytime i open the radio. 2001 Honda CRV
J**N
Good price for quality
Not big loud power but sounding nice for normal use and looks great amd install easy
Trustpilot
3 weeks ago
4 days ago