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Kicker KS400

4" 2-way KS Series Speakers with Grilles (08KS400)

4.3

(4 reviews)

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The product on this page is discontinued, but there is a newer model available:
Newer Model: Kicker KS40
11ks40 thumbnail
$58.95In Stock

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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 Kaladex-domed 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" Kaladex dome tweeter
  • Neodymium magnet with ferrofluid
  • 4 ohms impedance
  • Top-mount 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 DesignDome
Tweeter CompositionKaladex
Woofer CompositionInjection Molded Polypropylene (IMPP)
Woofer SurroundSantoprene Rubber
Peak Power Handling60 watts
RMS Power Handling30 watts
Sensitivity88 dB
Frequency Response60 - 20000 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 KS400
Average Customer Rating is 4.3 out of 5 stars:
4.3
based on 4 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
25%
4 star:
.
.
75%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.5
Value
5.0
Features
4.0
Design
4.5
Usability
5.0
what's this?
Most Helpful Customer Reviews:
February 22, 2011 Great replacement
Review by
Kyle from Des Moines, IA
Overall
Durability
Value
Features
Design
Usability
Great replacement 4" speaker. Didnt expect much from such a small speaker, but these are much better than I expected!
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September 3, 2010 Good sound great value
Review by
scottytrack from Philadelphia, PA
Overall
Durability
Value
Features
Design
Usability
Needed a stock size replacement for my 4Runner's in-dash speakers. These had the best materials for the price and I still like the way they sound for 4" speakers; They give about as much quality sound as you can expect for a speaker that size. Extremely easy to install, did it myself.
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September 30, 2009 Very surprised!
Review by
Tyler from Butler, PA
Overall
Durability
Value
Features
Design
Usability
I ordered these speakers because they were cheap and my front speakers were blown out. I wasen't really expecting to much. But i am VERY happy with them. The highs are amazing, and the mids sound good. And they get pretty loud to.

I've had them for about a year now, and the only thing is one of them started to crackle at high volume but stopped doing it recently. I think its because they got wet being where they are located in my door.

Overall I'm very happy with them, and would recommend them to anyone looking to replace their stock 4" Speakers.
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February 2, 2009 Big things DO come in small packages!!!
Review by
Chad from Portage, MI
Overall
Durability
Value
Features
Design
Usability
I purchased these speakers to replace the 4" speakers in my boat, thinking that I'd get my $'s worth if they lasted a couple of years in a marine environment. These speakers are phenomenal!! They are a perfect front stage speaker (w crystal clear highs) for a system with either a sub or larger rear speakers. I decided to isolate these speakers (hooked up to deck pwr) from my system to believe my ears and wow, they sounded like a 6 1/2" speakers!!! I wouldn't buy any other 4" speaker after owning these.
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Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
 ProductPriceAdd?
20 ft. of 16 AWG KICKER X-Series Speaker Wire20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.
$19.99
50 ft. of 16 Gauge Monster XLN Series Speaker Cable50 ft. of 16 Gauge Monster XLN Series Speaker Cable
Upgrade to clean and clear sound with Monster Cable's Xtra Low Noise (XLN) construction.
$35.00
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Xtreme Speaker KitDynamat Xtreme Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!
$21.99
Dynamat Dynaxorb Speaker PakDynamat Dynaxorb Speaker Pak
Revolutionary damping material designed to prevent distortion caused by the back wave of a speaker interfering with the front wave.
$19.99
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat products!
$18.99
Ballistic Speaker KitBallistic Speaker Kit
Eliminate speaker distortion, road noise, and rattles with this sound dampening material from Ballistic.
$15.99
Speaker Baffles, Spacers, and Depth Extenders
Mount your speakers in the location that you need with these speaker spacers, extenders, and adapters.
 ProductPriceAdd?
3/4" Depth Extender for 4" Speakers3/4" Depth Extender for 4" Speakers
Add 3/4" of extra space when installing your speakers.
$6.99
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.
 ProductPriceAdd?
Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!
$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.
$4.99
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!
$6.99
16-14 AWG Butt Connectors16-14 AWG Butt Connectors
These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!
$4.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99

Product Summary

Manufacturer: Kicker
Model number: 08KS400
Product manual: Download the Kicker 08KS400 Product Manual
UPC: 713034040330
Weight: 4.20 lbs
Internal SKU: 08ks400
Internal product ID: 11496
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Customer Testimonial

This place is awesome. You won't find a cheaper place to find audio stuff. I recieved my things that I order real quick and on time. It was exactly right and works perfect.

- blc082886 from Mooresville, IN.

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