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Kicker KS40

4" 2-way KS Series Speakers with Grilles (11KS40)

4.0

(1 review)

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Specials with this product

  • Free Ground Shipping to the 48 statesdetails
Free Kicker active-style headphones with a purchase of $100+ of Kicker gear Kicker KS Series

Does a serious factory upgrade, with more muscle at an affordable price, sound too good to be true? What it sounds like are some of the loudest, clearest coaxials ever hidden behind a door on under a back deck.

Give factory sound a serious power injection with a KS-Series Coaxial Speaker upgrade. With added improvements on the woofers and tweaked tweeters, dropping them in where factory speakers were seems like a no-brainer. The curvilinear, gray woofer cones, Santoprene surround, and newly designed basket give KS Coaxials the extra brawn to deliver a smooth, rich sound at any volume.

The tweeters contain a stout neodymium magnet dipped in ferrofluid for maximum coolness, recreating highs that rival live performance. Give your system the upgrade that it deserves with Kicker KS!

Speaker Features:
  • 4" KS Series Car Speakers
  • Power Handling:
    • Peak: 120 watts per pair / 60 watts each
    • RMS: 60 watts per pair / 30 watts each
  • Injection molded polypropylene cone woofer
  • Santoprene surround
  • 1/2" Balanced dome PEN tweeter
  • Neodymium magnet with ferrofluid
  • 4 ohms impedance
  • Mounting depth: 1-13/16"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Priced Per Pair

2011 Kicker Authorized Online Dealer and eBay Seller
Product History:
Kicker KS40 thumbnail
(newest, current model)
Kicker KS400 thumbnail
(previous model, replaced by Kicker KS40)
Kicker KS40 thumbnail
(previous model, replaced by Kicker KS400)

Sonic Electronix, Inc. can only ship Kicker products within the United States of America.

Speaker Specifications
Speaker Size4"
Design2-way
Tweeter DesignBalanced Dome
Tweeter CompositionPEN
Woofer CompositionInjection Molded Polypropylene (IMPP)
Woofer SurroundSantoprene Rubber
Peak Power Handling60 watts
RMS Power Handling30 watts
Sensitivity88 dB
Frequency Response60 - 20,000 Hz
Impedance (Per Voice Coil)4 ohms
Shallow Mount InstallationYes
Top-Mount Depth1-13/16"
Bottom-Mount Depth2-1/16"
Cutout Dimensions3-11/16"
Speaker GrillesYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Kicker KS40
Average Customer Rating is 4.0 out of 5 stars:
4.0
based on 1 Reviews
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Rating Distribution:
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4 star:
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100%
3 star:
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1 star:
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Average Attributes Rating:
Durability
4.0
Value
4.0
Features
4.0
Design
4.0
Usability
4.0
what's this?
Most Helpful Customer Reviews:
March 4, 2012 great sound from such a smll speaker.....gets LOUD!
Review by
Dubs from Des Moines, IA
Overall
Durability
Value
Features
Design
Usability
Using these in a 3" to 4" PVC elbow w/ spacer speaker tube on my motorcycle with a Kenwood KAC-1502 running them. I have my iPod for music. Sounds great for a 4" speaker (even good bass for a 4" speaker). I put a port on the PVC as well with a plug I can put in/take out. Looks kind of gaudy up on the bars. But, the sound outweighs that in my opinion.
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Speaker Baffles, Spacers, and Depth Extenders
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Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
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Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!
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Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
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AutoSound 2000 CD-101AutoSound 2000 CD-101
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Main Product
 ProductPriceAdd?
Kicker 11KS40Kicker KS40$64.95

Product Summary

Manufacturer: Kicker
Model number: 11KS40
UPC: 713034055136
Weight: 3.85 lbs
Internal SKU: 11ks40
Internal product ID: 29879

Price Information

$89.95

–$25.00

$64.95

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Customer Testimonial

Kirk offered outstanding detailed answers to my questions today concerning car audio speakers. Wow, made me feel like the inventor was on the other end of the line. Between today's purchase of speakers and previous Pioneer App Radio through S/E I have yet to find any fault. The best! Super job!

- yah777yah

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