---
product_id: 57054718
title: "KFC-1666S Car Stereo Speaker 6-1/2\" 2-Way Speakers with Powerful Sound and Easy Installation - Elevate Your Car Audio"
brand: "kenwood"
price: "¥19697"
currency: JPY
in_stock: true
reviews_count: 13
category: "Kenwood"
url: https://www.desertcart.jp/products/57054718-kfc-1666s-car-stereo-speaker-6-1-2-2-way
store_origin: JP
region: Japan
---

# 40-22,000 Hz frequency range 300W peak power Easy plug & play install KFC-1666S Car Stereo Speaker 6-1/2" 2-Way Speakers with Powerful Sound and Easy Installation - Elevate Your Car Audio

**Brand:** kenwood
**Price:** ¥19697
**Availability:** ✅ In Stock

## Summary

> 🚗 Elevate your drive with sound that commands attention!

## Quick Answers

- **What is this?** 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?** ¥19697 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/57054718-kfc-1666s-car-stereo-speaker-6-1-2-2-way)

## 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

- • **Hassle-Free Installation:** Comes with grilles, mounting hardware, and quick-slide connectors for a seamless upgrade in minutes.
- • **Powerful 300W Peak Output:** Turn up the volume without distortion and own the road with booming sound.
- • **Wide 40-22kHz Frequency Range:** Catch every beat and nuance from deep bass to crisp highs for a full-spectrum audio experience.
- • **6.5" Polypropylene Woofer + PEI Tweeter:** Balanced 2-way design delivers rich bass and crystal-clear treble for premium sound clarity.
- • **Optimized 90dB Sensitivity & 4Ω Impedance:** Efficient power handling ensures your car stereo sounds loud and clear without draining your system.

## Overview

The Kenwood KFC-1666S is a 6.5-inch 2-way coaxial car speaker system designed for easy installation and superior sound quality. Featuring a polypropylene woofer and PEI balanced dome tweeter, it delivers a wide frequency response (40-22,000 Hz) and handles up to 300 watts peak power. With 90 dB sensitivity and 4-ohm impedance, these speakers provide clear, powerful audio that transforms your in-car listening experience without breaking the bank.

## 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: 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.

## 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 |
| Audio Driver Size | 6.5 Inches |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #11,127 in Electronics ( See Top 100 in Electronics ) #49 in Car Coaxial Speakers |
| Color | Black |
| Compatible Devices | MP3 Player, Smartphone, Tablet |
| Control Method | Touch |
| Customer Package Type | FFP |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,569) |
| Date First Available | January 31, 2018 |
| Global Trade Identification Number | 00019048222879 |
| Impedance | 4 Ohms |
| Included Components | 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 |
| Input Voltage | 12 Volts |
| Is Discontinued By Manufacturer | No |
| Is Waterproof | FALSE |
| Item Weight | 2.8 pounds |
| Item model number | KFC-1666S |
| Manufacturer | KENWOOD |
| Material | Polypropylene, PEI |
| Model Name | KFC1666S |
| Mounting Type | Flush Mount |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 3.6"D x 7.6"W x 13.5"H |
| Recommended Uses For Product | For Surround Sound Systems |
| Series Number | 1666 |
| Set Name | Pair |
| Shape | Rectangular Prism |
| Speaker Size | 6.5 Inches |
| Speaker Type | Coaxial |
| Special Feature | 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… |
| Specific Uses For Product | Car Audio Systems |
| Style | KFC-1666S |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 4.96 Centimeters |
| Surround Sound Channel Configuration | 2.0 |
| UPC | 019048222879 |
| Unit Count | 1.0 Count |
| Warranty Type | Limited |
| Wireless Communication 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

![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!

### ⭐⭐⭐⭐⭐ Good value good sound
*by D***K on October 29, 2025*

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.

### ⭐⭐⭐⭐ They work
*by R***Y on November 30, 2025*

These speakers are better than nothing, and with proper placement they can produce good sound. I installed them in my 2017 Forester, but because the mounting location was low—almost down by my ankles—the audio sounded muddy. I later moved them to my 2000 Silverado, where they sounded better due to being positioned higher on the door. When I installed them in a box at about shoulder height, the sound was optimal.

## 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 Japan*
*Store origin: JP*
*Last updated: 2026-01-23*