---
product_id: 57054718
title: "Kenwood KFC-1666S Car Stereo Speaker 6-1/2\" 2-Way Speakers with Powerful Sound and Easy Installation - Elevate Your Car Audio"
brand: "kenwood"
price: "€ 122.09"
currency: EUR
in_stock: true
reviews_count: 8
category: "Kenwood"
url: https://www.desertcart.sk/products/57054718-kenwood-kfc-1666s-car-stereo-speaker-6-1-2-2
store_origin: SK
region: Slovakia
---

# 40-22,000 Hz frequency range 300W peak power 6.5" 2-way coaxial design Kenwood KFC-1666S Car Stereo Speaker 6-1/2" 2-Way Speakers with Powerful Sound and Easy Installation - Elevate Your Car Audio

**Brand:** kenwood
**Price:** € 122.09
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your drive with sound that speaks louder than words!

## Quick Answers

- **What is this?** Kenwood KFC-1666S Car Stereo Speaker 6-1/2" 2-Way Speakers with Powerful Sound and Easy Installation - Elevate Your Car Audio by kenwood
- **How much does it cost?** € 122.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/57054718-kenwood-kfc-1666s-car-stereo-speaker-6-1-2-2)

## Best For

- kenwood enthusiasts

## Why This Product

- Trusted kenwood brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Upgrade:** Plug-and-play installation with included grilles and hardware—no expert needed.
- • **Powerful Audio Impact:** Unleash up to 300 watts peak power for crystal-clear sound that dominates your drive.
- • **Broad Frequency Mastery:** Experience rich lows and sparkling highs with a wide 40-22,000 Hz frequency response.
- • **Precision Bass & Treble:** Polypropylene woofer and PEI dome tweeter deliver balanced, immersive sound clarity.
- • **Millennial-Approved Value:** Premium sound quality without the premium price—upgrade your ride and your vibe.

## Overview

The Kenwood KFC-1666S 6.5" 2-way coaxial car speakers deliver powerful 300W peak audio with a wide 40-22,000 Hz frequency range. Featuring a polypropylene woofer and PEI balanced dome tweeter, they provide crisp highs and impactful bass. Designed for easy installation with included grilles and mounting hardware, these speakers offer a seamless, affordable upgrade to your car’s audio system.

## Description

Buy Kenwood KFC-1666S Car Stereo Speaker 6-1/2" 2-Way Speakers with Powerful Sound and Easy Installation - Elevate Your Car Audio: Coaxial Speakers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: 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!
Review: 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.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 | #7,266 in Electronics ( See Top 100 in Electronics ) #35 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 | 4.4 out of 5 stars 1,593 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 |

## Product Details

- **Audio Output Mode:** Stereo, Surround
- **Brand:** Kenwood
- **Connectivity Technology:** Wired
- **Frequency Response:** 22000 Hz
- **Speaker Maximum Output Power:** 300 Watts

## Images

![Kenwood KFC-1666S Car Stereo Speaker 6-1/2" 2-Way Speakers with Powerful Sound and Easy Installation - Elevate Your Car Audio - Image 1](https://m.media-amazon.com/images/I/71pL1rm9MnL.jpg)

## Questions & Answers

**Q: Whats the difference between 1665S model vs 1666S**
A: Crutchfield has a direct comparison.  One difference that might affect you is the 1666 is 1/16" larger than the 1665.  Also the 1666 has a treated cloth woofer surround while the 1665 is just cloth.  The 1666 is a little more sensitive, so it will respond better at lower volumes...but marginally.  The 1665 however gets lower into the base, starting at 35 hz as opposed to 40.  Otherwise they are identical.

**Q: Will this fit my 07 toyota camry**
A: They will not fit in the rear.

**Q: will this fit in a 2002 chevy silverado front door?**
A: Yes Lord for the 02 Chevy Silverado

**Q: Will this work for my 2013 Nissan Versa?**
A: Yeah I think that should work fine for your door speakers under 13 Nissan Versa don't think they'll fit in the tray package in the back

## Customer Reviews

### ⭐⭐⭐⭐⭐ Incredible Sound at an Affordable Price – Perfect for Easy Audio Upgra
*by T***S on October 8, 2024*

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!

### ⭐⭐⭐⭐⭐ Nice upgrade to factory speakers
*by J***M on October 29, 2025*

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.

### ⭐⭐⭐⭐ Crystal clear highs
*by J***N on September 14, 2025*

If you are looking for bass, this may not be for you. But if you are looking to upgrade you stock speaker these work perfectly. The clarity is awesome and the mids are pretty good. Definitely an upgrade and worth every cent.

## Frequently Bought Together

- KENWOOD KFC-1666S Car Stereo Speaker 6-1/2" 2-Way Speakers with Powerful Sound and Easy Installation - Elevate Your Car Audio
- Kenwood KFC-1366S 5-1/4" 2-way Speakers
- Kenwood KFC-1066S 4" 2-way Speakers

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-08*