Skip Navigation

Kenwood KFC-1665S

Sport Series 6-1/2" 2-way speakers

960 Reviews | 24 questions - 36 answers

Watch a product review

Find what fits your vehicle

Can't find your exact vehicle?

Top Seller

Item # 1131665S

In Stock

Ships Today

Calculating shipping cut-off...

Was: $49.99

Price Break: -$10.00

Installation gear for most cars

Add to Cart

Ask an expert

Our VA-based experts can help.

1.888.955.6000

ChatEmail

Overview

Our take on the Kenwood KFC-1665S

So, you're finally ready to do something about your ragged factory speakers. The beauty of Kenwood's Sport Series speakers is that you can seriously improve your sound without breaking the bank.

Sport Series 6 1/2"

Kenwood includes grilles in case you opt for a custom installation

Upgrade on a budget

So, you're finally ready to do something about your ragged factory speakers. The beauty of Kenwood's Sport Series speakers is that you can seriously improve your sound without breaking the bank.

Sweet sound

The KFC-1665S 6-1/2" 2-way speakers feature polypropylene cones that will enrich your music with all the midbass and midrange details, while the 1" balanced-dome tweeters will make high notes soar. Kenwood also includes sharp-looking grilles in case you're doing a custom installation in your vehicle. Finally, you can enjoy your music the way it was meant to be heard, with clarity and emotion.

Sound great! The OEM Bose were blown and did not sound good at all. These are a great price and easy to install. Did not need the speaker kit for my C320 since these mounted right in the brackets that the Bose were in.

David, Middlebury, IN

Featured Video:

What's in the Box:

  • 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" Self-tapping screws
  • 8 Speed clips
  • Warranty information
  • Specifications and template on the box

Highlights:

  • 6-1/2" 2-way speakers (pair)
  • polypropylene woofer with treated cloth suround
  • 1" balanced dome tweeter
  • grilles included
  • handles up to 30 watts RMS (300 watts peak power)
  • impedance: 4 ohms
  • frequency response: 35-22,000 Hz
  • sensitivity: 92 dB
  • top-mount depth: 1-3/4"
  • warranty: 1 year
  • Our 60-day money-back guarantee
Reviews

Kenwood KFC-1665S Reviews

Average Customer Review(s):

(960 Reviews)
rewards card

Submit a review and enter to win a $350 rewards card

Review this product

Thanks for submitting your review

Most reviews are processed and published within 5 business days. You will receive a confirmation email once your review has been published.

Your Review

Use the stars below to rate the overall product on a scale of 1-5
1500
Upload your photos

Not visible. Email associated with order.
(e.g., Charlottesville, VA)

Additional Fields (optional)

500
500

By submitting this review, you agree to our terms and review guidelines.

Filter by rating

Customer photos


<< >>
Details

Hands-on research

Features and Specs

General
Speaker Size 6 1/2
Design 2-way
Tweeter Design 1" Balanced Dome
Tweeter Composition PEI
Woofer Composition Polypropylene
Woofer Surround Cloth
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) 92
Sensitivity at 2.83 volts N/A
Frequency Response 35 - 22k Hz
Minimum RMS Wattage 2
Maximum RMS Wattage 30
Peak Power Handling (Watts) 300
Impedance (Ohms) 4
Top-mount Depth (Inches) 1 3/4
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 4 7/8

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.)

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Accessories
Staff Reviews

Product reviews from the Crutchfield Labs

Kenwood's Sport Series car speakers replace your factory speakers, sound great even if you keep your factory stereo, and are an affordable upgrade for great sound.

What are the Labs?
Q & A

Customer Q&A

24 questions already asked

Since these speakers are typically designed to go into the open space of a vehicle panel, there is no recommended box volume listed. If you'd like more info on mounting these speakers into an enclosure, feel free to get with an Advisor directly by phone (1-800-324-9695) or online chat. [ Larry  Jan 20, 2017 ]  Staff
You can check to see if this will fit your vehicle by using our Outfit My Car tool: http://www.crutchfield.com/car/carselector.aspx For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Oct 17, 2016 ]  Staff
We installed these speakers in an Oldsmobile Bravada and very pleased. They are good quality and sound good when installed correctly. Installation is key with any new speakers. If you're not mechanically inclined, I highly suggest professional installation. [ truman  Sep 21, 2016 ]
You can check to see if this will fit your vehicle by using our Outfit My Car tool: http://www.crutchfield.com/car/carselector.aspx For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Kenny  Sep 09, 2016 ]  Staff
You can check to see if this will fit your vehicle by using our Outfit My Car tool: http://www.crutchfield.com/car/carselector.aspx For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Mar 29, 2016 ]  Staff
One pair, two speakers. [ Kenny  Mar 14, 2016 ]  Staff
Component ???????? awesome speakers for the price, sounded great they were in a 1996 del sol si but I did upgrade the whole system to kicker [ Christopher  Mar 12, 2016 ]
Antoniio, I would think they would work great. I bought them as replacement for my Van's factory speakers. One of them had gone bad so I replaced the pair. They sound nice to me but I'm just an old codger that usually listens to talk radio most of the time. Hope this helps you! Larry [ Larry  Mar 08, 2016 ]
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Dec 30, 2015 ]  Staff
They shouldn't need an amp. I just hooked them up to the factory stereo and it sounded good an after market stereo would also work... [ JERAMIAH  Aug 10, 2015 ]
Did not use an amp when I installed into my 2011 Kia Optima. [ Jamison  Aug 10, 2015 ]
They work good either way [ DALE  Aug 10, 2015 ]
Technically these speakers will not "need" an amp but running off the factory receiver, or even aftermarket receiver they are way under powered or just really quiet speakers, I haven't ran an amp to them yet so I can't honestly say there performance under an amp but with out an amp and running on just the average receiver power they are not worthy, just grab the next step up(ken wood performance series I think) for the price [ brogan  Aug 10, 2015 ]
These are car speakers. Usually you would just swap out the speakers that are housed in the doors and connect it to the main that is already in the vehicle. [ Shawn  Aug 10, 2015 ]
I installed these in my Silverado and no amp was required. [ Jorge  Aug 10, 2015 ]
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Jun 04, 2015 ]  Staff
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  May 06, 2015 ]  Staff
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Apr 27, 2015 ]  Staff
If your car has one speaker per door panel, coaxial speakers are probably the way to go. Component systems require a more advanced install, but for vehicles with separate tweeters, they are a good option. Component systems will likely give you a higher quality sound too. [ Paul  Apr 07, 2015 ]
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Apr 05, 2015 ]  Staff
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Dec 27, 2014 ]  Staff
I forwarded your question to an Advisor and they responded with the following: These speakers will give a louder and cleaner sound than the stock speakers in their Hyundai Elantra. I expect them to also get a fuller sound with cleaner bass. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy  Dec 05, 2014 ]  Staff
I would say a good receiver deck for small speakers. Then an amp rated near the peek watts of the sub's would work good depending on the sound or music you listen to. [ JERAMIAH  Nov 21, 2014 ]
If you plan on amplifying all speakers purchased (2 pair for the doors and a pair of subs) you will need at least a 5 channel amp, or a 4 channel for the doors and either a two channel or mono amp for the subs. Personally, I installed these in my buddy's Silverado and he is pleased just using the jvc head unit he bought. If you're going to amp the speakers and subs separate, I'd suggest the kicker dxa-250 as the rms rating is the same for the speakers and the amp. I can't suggest a sub amp for you, because I don't know what kind you have. Also, before you go trying to throw different amps at your setup, check the back of your head unit to see if you have the correct number of outputs to do so. If you don't, you can always do line levels, but that's a whole 'nother can of worms. [ Ray M.  Nov 21, 2014 ]
I don't run mine on amp just Kenwood receiver [ DALE  Nov 21, 2014 ]
You won't "need" an amplifier for the kfc-1665s, your head unit will push them I would just focus on getting an amp for your subs that will push the rms of them and then later if you want more power out of the 1665s then I would worry about getting a small amp for them [ brogan  Nov 21, 2014 ]
These did not sound particularly good being driven by a stock system. I would say that applying too much power, such as from an amplifier, would destroy them in short order. [ Damian  Nov 21, 2014 ]
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system. [ Krissy  Nov 21, 2014 ]  Staff
You can likely leave the front tweeters alone. However, I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to tell you for sure, and help you pick out replacement tweeters if needed. [ Jeff  Aug 22, 2014 ]  Staff
I replaced the front speakers of my wife's 2006 Subaru Baja with these, and Crutchfield included the needed wiring harness and very comprehensive instructions for my specific application with the speakers. My guess is they will do the same for you as they seem to have a huge library of individual installation procedures available. You might also consider their tool kit for removing panels etc., I found it extremely useful. Good speakers for the price too! [ GEORGE  Jul 08, 2014 ]
Crutchfield provides you with any kind of adapter that you might need. If for some reason they don't work you can always find them at a hardware store and solder them on yourself. [ JOSH  Jul 08, 2014 ]
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you. [ Greg  Jul 08, 2014 ]  Staff
I forwarded your question to an Advisor and they responded with the following: The Kenwood speakers are sold per pair, and for most vehicles that would cover both doors If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Greg  Apr 30, 2014 ]  Staff
I forwarded your question to an Advisor and they responded with the following: It really depends on the amount of power that is going to that sub. If it is less than 500 watts, you may be ok. If you use more power than that, it can get pretty loud, so you may want to reinforce the mids. Take a look at this 4 channel amp. http://www.crutchfield.com/p_500MRVM500/Alpine-MRV-M500.html?tp=35834 This will bump up the volume of you mid-range speakers and make the system more balanced. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy  Apr 11, 2014 ]  Staff
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Mar 02, 2014 ]  Staff
Articles