About the Kenwood KFC-1666S

Dependable sound
Dependable sound
There comes a day when you just can't bear to drive another mile, listening to muddy-sounding speakers. When you finally reach the breaking point, Kenwood's Sport Series speakers are your go-to solution without breaking the bank.
Solid lows and clear highs
The KFC-1666S 6-1/2" 2-way speakers feature polypropylene cones that will enrich your music with solid midbass oomph and dynamic midrange, while the 1" balanced-dome tweeters will bring new life to the high range. Kenwood also includes sharp-looking grilles in case you're doing a custom installation in your vehicle. Best of all, you can safely power these with your car stereo and still enjoy your music the way it was meant to be heard, with clarity and emotion.
Product highlights:
- 6-1/2" 2-way speakers (pair)
- polypropylene woofer with treated cloth surround
- 1" PEI balanced dome tweeter
- grilles included
- handles up to 30 watts RMS (300 watts peak power)
- impedance: 4 ohms
- frequency response: 40-22,000 Hz
- sensitivity: 90 dB
- top-mount depth: 1-11/16"
- warranty: 1 year
- MFR # KFC-1666S
What's in the box:
Kenwood KFC-1666S owner's manual
- 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
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Customer reviews for Kenwood KFC-1666S
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Average review:
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More details on the Kenwood KFC-1666S

Features & specs
General | ||
---|---|---|
Speaker Size | 6 1/2 | |
Design | 2-way | |
Tweeter Design | 1" Balanced Dome | |
Impedance (Ohms) | 4 | |
Tweeter Composition | PEI | |
Woofer Composition | Polypropylene | |
Woofer Surround | Treated cloth | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year | |
Specifications | ||
Sensitivity (1W at 1 meter) | 90 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 40 - 22k Hz | |
Minimum RMS Wattage | --- | |
Maximum RMS Wattage | 30 | |
Peak Power Handling (Watts) | 300 | |
Top-mount Depth (Inches) | 1 3/4 | |
Bottom-mount Depth (Inches) | N/A | |
Cutout Diameter or Length (inches) | 4 15/16 | |
Mounting Height (Inches) | 0.315 |
Product Research
Features
Tweeters: Each speaker has a 1" 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. PEI (Poly-Ether-Imide) is a polymer film that produces a wide soundstage for superior imaging.
Mounting: The speaker basket has multiple mounting holes and is designed to fit a standard 3-hole 6-1/2" application, Ford's 4-hole 6-1/2" application, and a standard 4-hole 6-3/4" application. (When mounting in a 6-3/4" application, use a speaker baffle to seal the inner ring of screw holes.)
The Kenwood KFC-1666S replaces these items

Kenwood KFC-1665S
- 6-1/2" 2-way speakers (pair)
- polypropylene woofer with treated cloth suround
- 1" balanced dome tweeter
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Customer Q&A
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Speakers are a good factory replacement. These speakers replaced my 18 year old Mercedes C230 factory speakers. I would recommend these speakers if you just need a decent replacement and only plan on powering them off a head-unit.
Jerome from VICTORVILLE, CA