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Kicker KS40

4" 2-way car speakers

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Item# 206KS40 offer details

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Kicker

Our take on the Kicker KS40

by Jo Greene

You put some good bass in your car, but now your speakers just aren't hanging with your subs. Kicker designed their KS Series speakers to deliver the performance you need to bring that "live music" experience to your ride.

The KS40 4" 2-way speakers use heavy-duty polypropylene cones supported by Santoprene rubber surrounds. Each speaker sports a 1/2" balanced dome tweeter that broadcasts plenty of high-frequency sparkle, so you'll hear all the sonic details that make your tunes exciting.

Highlights:

  • 2-way 4" speakers (pair)
  • polypropylene woofer cone with Santoprene™ surround
  • 1/2" polyethylene naphthalate (PEN) film balanced dome tweeter
  • power range: 6-30 watts RMS (60 watts peak power)
  • frequency response: 60-20,000 Hz
  • sensitivity: 88 dB
  • top-mount depth: 1-7/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee
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    Hands-on research from the Crutchfield Labs (what are the Labs?)

    Features and Specs

    Features and Specs
    General
    Design
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    2-way
    Tweeter Design
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    1/2" Balanced Dome
    Tweeter Composition
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    Polyethylene Naphthalate
    Woofer Composition
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    Polypropylene
    Woofer Surround
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    Santoprene
    Parts Warranty
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    1 Year
    Labor Warranty
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    1 Year
    Specifications
    Sensitivity
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    88 dB at 1 watt
    Frequency Response
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    60 - 20k Hz
    RMS Power Range (Watts)
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    6-30
    Peak Power Handling (Watts)
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    60
    Impedance (Ohms)
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    4
    Top-mount Depth (Inches)
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    1 7/8
    Bottom-mount Depth (Inches)
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    2 1/8
    Cutout Diameter or Length (inches)
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    3 3/4

    Product Research

    Product Research
    What's in the box?

    Download owner's manual

    • Two 4" Coaxial speakers
    • 2 Grilles
    • 2 Grille rings
    • Two 12" lengths of speaker wire (tinned wire on one end and 0.205" + 0.110" female quick slides on the other)
    • 4 Red plastic butt connectors
    • Eight 1" Self-tapping screws
    • 8 Speed clips
    • Owner's manual (English/ Spanish/ German/ French)

    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 open the box, verify contents, 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.

    Features

    Polypropylene Woofer Cones: The Kicker KS-series speakers feature durable polypropylene woofer cones for power and control. Polypropylene is also resistant to the moisture and temperature extremes found in automotive applications.

    Santoprene Surrounds: The woofer surrounds are made of Santoprene rubber to allow extended cone excursion for additional bass output and higher SPL. Santoprene is durable and resists moisture for a long life.

    Balanced Dome Tweeters: The 1/2" PEN (Polyethylene Naphthalate) balanced dome tweeters provide a smooth high frequency response with a wide dispersion pattern. The tweeters have strong neodymium magnets for higher power handling.

    Grilles: The KS40s come with a pair of graphite-colored, plastic, spoke-style speaker grilles.

     

    Product Reviews

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    Reviews for the Kicker KS40

    Average Customer Review:

    7 people say:

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    Showing: 1-7 of 7
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    5 out of 5

    speakers

    Written By bob101, Eau Claire, WI on Monday, April 29, 2013
    Installed in a 2004 GMC Sierra 1500
    Crutchfield Customer Review (What's this?)
     
    Speakers sound great! No complaints
    Pros:
    sound
    Cons:
    none
    Was this review helpful?    Yes | No
     
    5 out of 5

    Great Speaker

    Written By Josh M, Michigan on Tuesday, January 08, 2013
    Installed in a 1986 Ford Bronco II
    Crutchfield Customer Review (What's this?)
     
    Great speaker to put in any vehicle to help the music sound crisp. The speakers are clear and do not crackle when turned up. Some people say they crack when they turn them up but obviously you shouldn't crank up brand new speakers.
    Pros:
    Good buy. Very Satisfied.
    Cons:
    No cons so far.
    Was this review helpful?    Yes | No
     
    1 out of 5

    Not quite up to original equipment standard

    Written By CraigM, Perryville, MD on Monday, December 17, 2012
     
    I was hoping these would be as good as the Toyota Avalon original equipment 4" component speaker and tweeter but I am very disappointed. The original speakers sounded so much better (until they fell apart from old age!). Now I have very thin sounding speakers that I am already looking to replace. These are a waste of money. I did notice the original speakers had magnets that were twice the size and the cones had twice the depth of the kicker. My advice --- look to pay more for a better product.
    Pros:
    Easy to mount.
    Cons:
    Terrible tinny sound. Base response is poor.
    Was this review helpful?    Yes | No
     
    5 out of 5

    Kicker KS40

    Written By BMW, Lugoff, SC on Monday, December 17, 2012
    Installed in a 1995 BMW 325IS
    Crutchfield Customer Review (What's this?)
     
    For the size and type, not a bad sound. I kept the stock reflex box of my '95 325is intact, these are in the package tray of the rear window. These stock boxes are ported, an opening of about 1/2 x 2, I shoved some cotton-based batting material inside of them except around the port wave zone and the low-end response is impressive. I am only pushing about 30 watts as I am using the stock Harmon-Kardon amp. Just don't push this speaker, it's not designed for it.
    Pros:
    For the cost, it's a good upgrade to the factory ones, although, after 17 years, the factory ones were worn out.
    Cons:
    The only caveat, (if you can call it that) is that to put these in the stock boxes, I had to snip off 2 of the 4 mounting tabs. But, with them being serrated, they are designed that way. They were also a tad bit smaller in circumference then factory, so I sealed the gap with silicon. As it turned out, doing that forces the free air out the port - making for lower-end!
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    good speakers

    Written By me sir, Washington, UT on Thursday, October 18, 2012
    Installed in a 2009 Chevrolet Aveo
    Crutchfield Customer Review (What's this?)
     
    For such a small speaker it does a good job providing a wide variety of sounds however it struggles slightly (as expected) when it comes to bass but in all I am satisfied with my purchase
    Pros:
    good for maintaining highs in a primarily bass system
    Cons:
    lots of treble moderate bass
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Kicker KS40 installed in 1994 Geo Metro

    Written By xtf16, Tampa, FL on Tuesday, October 09, 2012
    Installed in a 1994 Geo Metro LSI
    Crutchfield Customer Review (What's this?)
     
    I ordered these speakers 5 days ago (counting the weekend) and they arrived. I could have purchased these speakers elsewhere for a little less, but I'm glad I ordered them from Crutchfield. Not only was the product instruction sheet included, but also a sheet that showed exactly how to install them in my 1994 Geo Metro. Also included for free was the wiring harness I would need to fit each speaker into my car. I just put this little old car back on the road with a new engine because it gets such great gas mileage...I thought I was going to have trouble finding speakers for it because the car is 18 years old.. but Crutchfield had the right speakers and the installation was a breeze... I am a female and anyone could get these speakers installed in a jiffy with the great info from Crutchfield. I received an email to acknowledge my order, another one when it shipped, and another to tell me that it was delivered! I also have earned points with my very first purchase by registering for free! Great service Crutchfield! A great experience doing business with you!
    3 out of 3 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Kicker KS40

    Written By jlrfd13, pocatello id on Tuesday, April 03, 2012
    Installed in a 1987 Toyota Corolla SR5
    Crutchfield Customer Review (What's this?)
     
    sound great
    Pros:
    sound great
    Cons:
    none so far
    2 out of 11 people found this helpful
    Was this review helpful?    Yes | No
     
    1-7 of 7

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    Smart people protect with SquareTrade- The best warranty at the best price

    SquareTrade Warranty
    SquareTrade Warranty 3 Year Warranty
    Your Price: $13.99
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    In business since 1999, SquareTrade is the largest independent warranty provider in the U.S.

    100% parts and labor - no deductibles

    All mechanical and electrical failures covered, includes normal wear and tear.

    Your item's repaired or the full item price returned withing 5 days

    Runs concurrent with manufacturer's warranty

    Rated 5-stars by consumers

    For a more in-depth review and enhanced detailed information on the Kicker KS40, please visit the Crutchfield website product page (/S-2HTRoZavlDg/p_206KS40/Kicker-KS40.html ).

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