Modern Connectivity
Seamless Apple CarPlay® and Android Auto™ for navigation, music, and calls.
"Fit perfectly and worked exactly as expected — support was excellent."
Kenwood KFC-1666S
Upgrade Your Vehicle With Confidence. This Is Built to Fit, Perform, and Last
Real installer support before and after purchase
Price Match Guarantee
Full Manufacturer 2 Years Warranty
Free 30-Day Returns
Check Compatibility
In Stock
Ships within 1-3 days
Authorized Dealer Guaranteed
Kenwood KFC-1666S | Sport Series 6.5" 2-Way Coaxial Speakers
The Kenwood KFC-1666S is a highly popular entry-level 6.5" coaxial speaker designed primarily as an affordable factory replacement. As part of Kenwood's Sport Series, these speakers are engineered to deliver clear, bright sound even when powered by a basic factory radio. Their shallow-mount design makes them a versatile fit for the vast majority of vehicles on the road today.
Product Highlights
-
Shallow-Mount Design: With a mounting depth of only 1-11/16", these are some of the easiest speakers to install, fitting into tight door panels where deeper speakers might hit window tracks.
-
Sound Field Enhancer: Features a specialized tweeter bezel that helps disperse high frequencies more broadly, improving the soundstage if your speakers are mounted low in the doors.
-
High Efficiency: A high sensitivity rating of 90 dB means they play loud and clear without needing an external amplifier, extracting the most out of your factory head unit.
-
Polypropylene Woofer: The silver-colored PP cone is durable and moisture-resistant, providing a solid midrange that won't degrade over time like original paper factory speakers.
Key Features
-
1" Balanced Dome Tweeter: Uses a PEI (Polyetherimide) diaphragm to produce crisp, detailed highs that cut through road noise.
-
Cloth Surround: Provides a lightweight and flexible suspension for the woofer, ensuring smooth movement and reliable performance over the life of the speaker.
-
Ferrite Magnet Structure: A heavy-duty magnet assembly ensures stable power handling and consistent acoustic output.
-
Universal Fit: The 6.5" (160mm) frame is designed to match most standard factory bolt patterns, making it a "go-to" for DIY installations.
Technical Specifications
| Feature | Specification |
| Speaker Size | 6.5 in (160 mm) |
| Design | 2-Way Coaxial |
| Power Handling (RMS) | 30 Watts |
| Power Handling (Peak) | 300 Watts |
| Frequency Response | 40 Hz – 22,000 Hz |
| Sensitivity | 90 dB |
| Impedance | 4-Ohm |
| Mounting Depth | 1-11/16 in (43.2 mm) |
What’s In The Box?
-
(2) Kenwood KFC-1666S 6.5" Speakers
-
(2) Grille Assemblies
-
(2) 12" Lengths of speaker wire
-
(8) 1" Self-tapping screws
-
(8) Speed nuts
-
Warranty card and mounting template
- Ships within 1–3 business days from our warehouse
- Tracking included with every order
- Free 30-day returns if it doesn’t work for your setup
- 2-year manufacturer warranty
- Authorized dealer guarantee
- Real installer-backed support before and after purchase
Kenwood KFC-1666S
Sale price$60.00
Why This Upgrade Makes Daily Driving Better
Ease of Use & Safety
Hands-free control reduces distraction and frustrationwhile driving.
Expandable by Design
Add backup cameras, better speakers, amps, or subsanytime.
FITMENT & INSTALLATION MADE SIMPLE
WHAT VEHICLES IT WORKS WITH
FIND THE RIGHT PRODUCT FOR YOUR EXACT VEHICLE
We verify compatibility before you buy, no guesswork.
DIY FRIENDLY IF:
- You're comfortable with basic tools
- You follow provided instructions
PROFESSIONAL INSTALL RECOMMENDED IF:
- Your vehicle requires dash kits or wiring adapters
- You want a turnkey experience
INSTALLATION CREDIT & SUPPORT:
- $75 Installation Credit when purchased online
- Speak to real installers before you buy
- Bring it into one of our locations for install
40 Years of Installation Experience
Tens of Thousands of Installs Completed
Authorized Dealer Full Warranties
Why Buying This Here Is Safer Than Anywhere Else
 |
MARKETPLACES | |
|---|---|---|
|
Verified Vehicle Fit
|
||
|
Installer Support
|
||
|
Authorized Products
|
||
|
Easy Returns
|
||
|
Physical stores & real installers
|
FREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED QUESTIONS
How do I know this stereo or speaker will fit my car?
Select your year, make, and model using the Vehicle Fit Guide at the top of the page. You’ll only see products that are compatible with your exact vehicle setup.
What happens if I order something that doesn’t fit?
You can return or exchange it within 30 days. We’ll help you identify the correct part for your vehicle so you don’t have to guess again.
Are these products brand new and covered by warranty?
Yes — all products are brand new, authentic, and sold as an authorized dealer, which means they include a full manufacturer warranty.
Can you install this for me, or do I need to do it myself?
You can do either. Install it yourself, or use your $75 installation credit at our shop and have it professionally installed by our team.
What if I don’t know what to choose for my car?
Tell us your vehicle and what you want to improve (sound, bass, CarPlay, etc.). We’ll recommend the exact products that fit your car and your budget.
Free shipping
Free Shipping to the Lower 48 States
Customer service
Our Customer support and sales experts are always available to help
Secure payment
We accept Apple Pay, Paypal, and all major credit cards through our encrypted processor.