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Kenwood KFC-1664S

6.5" 3-Way Sport Series Coaxial Car Audio Speakers

Discontinued
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Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

kfc1665s thumbnail

Kenwood KFC-1665S

OUR PRICE: $26.95

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General Features:

  • 6-1/2" Sport Series Coaxial Car Speakers
  • Power Handling:
    • Peak: 360 watts per pair / 180 watts each
    • RMS: 70 watts per pair / 35 watts each
  • Polypropylene cone material
  • Treated cloth speaker surround
  • 35mm Mylar mid-tweeter
  • 12mm Ceramic super-tweeter
  • 4 ohms impedance
  • Frequency response: 35-22,000 Hz
  • Top-mount depth: 1-5/8"
  • 1-year Sonic Electronix Warranty

Priced Per Pair

Product History:

Kenwood KFC-1665S thumbnail
(newest, current model)
Kenwood KFC-1664S thumbnail
(previous model, replaced by Kenwood KFC-1665S)
Kenwood KFC-1662S thumbnail
(previous model, replaced by Kenwood KFC-1664S)
Kenwood KFC-1661S thumbnail
(previous model, replaced by Kenwood KFC-1662S)
Kenwood KFC-1660s thumbnail
(previous model, replaced by Kenwood KFC-1661S)
Kenwood KFC-1659S thumbnail
(previous model, replaced by Kenwood KFC-1660s)

Speaker Specifications

Series
This is the manufacturer product line of speakers.
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6-1/2"
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
3-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Mylar
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Polypropylene
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Treated Cloth
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
180 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
35 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
92 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
35 - 22000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Yes
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
1-5/8"
Bottom-Mount Depth
The depth when installed from the bottom of the mounting surface. Measured from the bottom of the speaker's magnet to the top of the mounting holes on the rim of the speaker.
1-3/4"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches, required to contain the speaker.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
4-13/16" x 4-13/16" 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Yes

Specials with this Item

Promotions
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
On Sale

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
56%
4 Star
22%
3 Star
11%
2 Star
0%
1 Star
11%

Average Attribution Rating

Durability
4.1
Value
4.4
Features
3.9
Design
4.2
Usability
4.2
Charles

huron, SD

Overall
Durability
Value
Features
Design
Usability
great speakers

August 30, 2013

sounds really good on factory deck. cannot go wrong with kenwood.

1 of 1 found this helpful

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Juan

Saint Kitts And Nevis

Overall
Durability
Value
Features
Design
Usability
Kenwood speaker

August 13, 2013

Great product. excellent price, powerful speakers. I would purchase this product anytime or recommend to friends.

1 of 1 found this helpful

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ChrissyV

Cincinnati, Ohio

Overall
Durability
Value
Features
Design
Usability
Great Replacement/Upgrade Speakers

February 14, 2014

I installed these speakers in place of my factory ones in my Honda Accord. I am still using the stock head unit, but I can tell a huge difference in these versus the factory ones. The sound is much clearer and it was the best upgrade I have done to my car yet. Would highly recommend these to someone looking for a great everyday speaker.

0 of 0 found this helpful

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ag

macomb mi

Overall
Durability
Value
Features
Design
Usability
great!!

January 22, 2014

great service and product

0 of 0 found this helpful

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eddie

new tazewell, TN

Overall
Durability
Value
Features
Design
Usability
great sound for little money

January 14, 2014

Replaced factory speakers with kfc-1664s & Kenwood receiver-GREAT SOUND for budget minded--also GREAT service from Sonic Electronix.

0 of 0 found this helpful

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Williams

Corona ca

Overall
Durability
Value
Features
Design
Usability
Sounds good, looks good, works good

January 14, 2014

Replaced factory speakers in 2007 Prius. Very good sound. Fits in perfectly.

0 of 0 found this helpful

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CB

TX

Overall
Durability
Value
Features
Design
Usability
Good Deal

January 10, 2014

Decent speakers for the money. Easy to install. I am not into loud music, but these sound good at moderate levels.

0 of 0 found this helpful

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william

dracut, MA

Overall
Durability
Value
Features
Design
Usability
cool

January 9, 2014

Cant beat for price. Cool speakers. Screw there 10 word minimum review

0 of 0 found this helpful

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David

Buffalo, New York

Overall
Durability
Value
Features
Design
Usability
Great price, great sound

November 1, 2013

Great lights and lows-especially like the bass coming from them, they fill my entire car with perfect pitch!

0 of 0 found this helpful

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Solid

Keystone Heights, FL

Overall
Durability
Value
Features
Design
Usability
Not Even Close :(

October 20, 2013

I bought these recently as a stock replacement for my Honda Accord front door speakers. I bought a Kenwood head unit as well as a pair of Kicker 6 x 9 3 ways for the rear deck. I bought these speakers based on the specs (decibels per 1 watt, freq response and power handling). On paper, they matched the kickers and should really sound nice. SADLY.....the specs are a complete mislead (being nice). These speakers (and I have had a bunch in 51 years) are truly the worst I have ever heard. You could not even hear them (at zero fade) unless you bent way over and lowered your head and you could barely tell they were playing. When faded to the front to bring them in.....the sound was flat and lifeless. when driven, they distorted and sounded like crap. I ordered a pair of CS-65 kicker 2 ways to replace them......and they ROCK! They ROCK at zero fade, set up a great presence and image, deep tight bass and can take a lot more than my Kenwood 22wpc headunit can deliver! With the kickers front and back.....no amp is needed. It is clean and solid and deep bass too! Don't but these speakers....I am sending them back. I am truly disappointed that a product with the Kenwood name performs on this level. They are cheap, cheaply built and perform worse. The Kickers are twice the weight of these, solidly built and perform 4 levels above!

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John

Quincy, OH

Overall
Durability
Value
Features
Design
Usability
Very crisp clean sound.

September 17, 2013

Can't go wrong for the price. I bought two pair. Put two up front two in back of my standard cab f150. Paired them with a 50watt per channel head unit that has full hpf and lpf abilities tune it to perfection. Once you tune the bass outta the highs they scream. my system: head unit: pioneer mp3 50x4 amp: HiFonics 1400watt sub: 600 watt mtx 12" running at 2ohm speakers: 4 Kenwood 61/2 Metal,Rap and EDM LOVES my system Very loud, shakes rear of cab.

0 of 0 found this helpful

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Chris

Kansas City, MO

Overall
Durability
Value
Features
Design
Usability
Good Value

July 31, 2013

These speakers are not bad for someone looking to replace the stock speakers in their vehicle. If you are looking to do a big install and have a high quality build then these are not for you.

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J R

Bellevue, NE

Overall
Durability
Value
Features
Design
Usability
Fits my 2005 Trailblazer

January 7, 2013

Bottom Line: It's a cheap speaker that fits in our 2005 Trailblazer and does what it's asked to do in providing audio to the rear passenger seat. The right rear speaker died in our 2005 Trailblazer. I have zero automotive/trade skills. So I needed a part that was easy to replace. Searching the web for a video helped teach me how to take the door panel off (very easy) and for imagery helped me with wiring and install. For a 2005 Trailblazer I did not know GM had a wiring harness on their speakers. If you order this and want a wiring harness then you'll need to search for one as well. Not having ordered the harness, I cut the GM harness off and used wire nuts to affix the Kenwood wires to the car wires. The Kenwood packaging had tamper stickers over the wiring instructions printed on the box (no paperwork shows you how to wire this speaker -- it's only a picture on the back of the box). Thankfully I was able to peel those stickers off to see the wiring diagram on the box. The stock speaker frame has a peg hold that rests on alignment pegs on the door. I had to break these small pegs off as the Kenwood frame did not line up with the pegs. There might be an adapter ring out there, but it wasn't necessary for this simple install. Break off the little pegs and mount the speaker. The speaker did not PERFECTLY line up with the car screw holes. So one side is screwed flush and the other screw is resting against a leading edge on the Kenwood frame. The install holds, but it's not an exact fit. The speaker itself sounds comparable to the factory speakers. I'm not a audiophile. So, blasting the speakers is not something I ever do. If you just need a cheap speaker to repair a dead one, buy this pair. It gets the job done. If you're looking for something to blow your windows to pieces and rumble the car next to you, then look for a review from someone who knows something about speakers.

0 of 0 found this helpful

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JJ

NY

Overall
Durability
Value
Features
Design
Usability
Good simple unit

November 18, 2012

Good quality for the price. Works fine for my needs and has a decent sound.

0 of 0 found this helpful

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Robert

Cozad, NE

Overall
Durability
Value
Features
Design
Usability
Kenwood speaker

November 7, 2012

These are very nice sounding and installation was smooth. Over all another great product from Sonic !! Thanks

0 of 0 found this helpful

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Big O

Colton, CA

Overall
Durability
Value
Features
Design
Usability
First after-market car system.

April 24, 2012

I recommend this speakers. At first I had them wired to my factory reciever, and they actually sounded the same as my factory speakers from before, exept the lows were not as deep or defined. Then, I bought a Kenwood reciever and wow. Big difference to the overall experience. Much crisper highs, mids are alive and the lows are accurate and decent, yet overall better bass then my old factorys. I am very happy with these Kenwoods, but not untill I installed the Kenwood head unit. I finally can play my music loud without a lot of distortion. That makes me very satisfied.I am not ashamed anymore to roll down my windows now. I have no complaints so far, and I have had these for two weeks.

0 of 0 found this helpful

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Hunter

Salisbury, NC

Overall
Durability
Value
Features
Design
Usability
Very Nice!

April 23, 2012

I bought these and have them hooked up to a kenwood headunit. These speakers sound very nice and clear. A huge upgrade over the stock bose speakers. I hear detail in my music that previously could not be heard. I recommend these for a nice low budget install.

0 of 0 found this helpful

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slizenyuten

Upper Marlboro, MD

Overall
Durability
Value
Features
Design
Usability
Weak speakers.

February 7, 2012

I bought these as upgrades for my factory speakers and believe it or not the factory ones sounded better than these so I had to exchange it for a pair of MTX TN653's which also came from Sonic. Kenwood is a great product but I think it was only 35 watts RMS that's why it sounded weak. I also heard that these were entry level speakers so that might be a problem with sound enthusiasts.

0 of 3 found this helpful

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Accessory Tools and Products

Accessories added

Streetwires 50 ft. of True Spec 16 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $29.99

Belva 23 ft. of True Spec 16 Gauge Speaker Wire

100% Copper Clad Aluminum, PVC blended jacket for easy installation and high strand count for maximum audio quality

Your Price $12.99

16-14 AWG Butt Connectors

These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!

Your Price $4.99

16-14 AWG Blue T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.49

16-14 AWG Quick Disconnect Connectors

These blue quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $7.99

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $14.99

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $17.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $21.99

NVX SDRLR1 Sound Dampening Rubber Roller

Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!

Your Price $7.99

Speaker Baffles for your Speakers

Enhance the sound of your speakers with these easy to install speaker baffles.

Your Price $9.99

Items we think you might want
CS-V628 thumbnail
JVC CS-V628

• Peak Power: 500W
• RMS Power: 80W
• 1" Polyetherimide (PEI) Dome Tweeter
• Mounting Depth: 1-11/16"
• Carbon Mica Woofer Cone
• 4 Ohms Impedance
• Durable Hybrid Material Speaker Surround

Your Price $29.95

SK653 thumbnail
Boss SK653

• Peak Power: 350W
• RMS Power: 175W
• Neo Mylar Soft Dome Tweeter
• Mounting Depth: 1-9/16"
• Silver Alpha-Cellulose Cone
• 4 Ohms Impedance
• Sensitivity: 85dB

Your Price $30.95

Browse 1 question and 2 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
the oem blow out , had good luck with kenwood ,
Thomas R on Sep 22, 2014
speakers blew out
jon w on Sep 11, 2014

Product Summary

Manufacturer

Model Number

KFC-1664S

UPC

019048196323

Weight

2.92lbs

Internal SKU

kfc1664s

Internal Product ID

42910

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Kenwood KFC-1664S

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