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Kicker 40CSS674

6-3/4" component speaker system

Item #: 2064CSS674

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Kicker 40CSS674

It's time for an upgrade

Upgrading the old factory speakers in your car will give you a huge bump in sound quality, and Kicker designed CS Series speakers to get your sound system rockin' without breaking the bank. You'll enjoy your music even more when you hear all the details that your muddy-sounding factory speakers couldn't begin to reproduce.  

Bring on the treble and the bass

Kicker's 40CSS674 component speaker set provides low-end from a tough 6-3/4" polypropylene woofer, with a polyester foam surround that will stay strong for years to come. The separate 3/4" titanium dome tweeter takes care of the vocal and instrumental details that'll really bring your music to life. The outboard crossover network allows you to pick from three different tweeter level settings so you'll get balanced sound wherever you're sitting. Grilles are included.

Product Highlights:

  • component speaker system includes 2 woofers, 2 tweeters, and 2 crossovers
  • 6-3/4" polypropylene woofers with polyester foam surrounds
  • 3/4" titanium dome tweeters
  • external crossover network with 3 tweeter levels (0, +3, +6 dB)
  • power range: 2-100 watts RMS (300 watts peak power)
  • frequency response: 35-21,000 Hz
  • sensitivity: 90 dB
  • top-mount depth: 1-7/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Why install component speakers?

A component speaker system gives you the best possible performance from your car audio system. A system consists of separate woofers, tweeters, and crossovers, each designed to cover one specific range of frequencies. As separate components, the woofer can move freely to deliver more powerful performance, while the tweeter can be custom-mounted in a better spot up closer to your ears, revealing a whole new world of detail. Separate crossovers are far superior to the simple filters wired into full-range speakers, so the components work together for smoother, more focused sound.

Hands-on research

What's in the box?

Download owner's manual

  • Two woofers
  • 2 Woofer grilles
  • Two tweeters (each with 35" Wire attached)
  • 2 Crossovers (each with 35" Input wire/ 35" Tweeter output wire/ 35" Woofer output wire attached)
  • 2 Flush mount tweeter rings
  • 2 Short tweeter mounting nuts
  • 2 Long tweeter mounting nuts
  • 2 Back angled tweeter rings
  • 2 Front angled tweeter rings
  • 2 Angled surface mount tweeter housings
  • Twelve 1" Self-tapping screws
  • Two 5/8" Self-tapping screws
  • 8 Speed clips
  • Four 7" Zip-ties
  • 4 Red plastic butt connectors
  • Owner's manual (English/ Spanish/ German/ French)

Product Research


Polypropylene Woofer Cones: The Kicker CS-series speakers feature durable polypropylene woofer cones, resistant to the moisture and temperature extremes found in automotive applications.

Ribbed Polyester Foam Surrounds: The ribbed polyester foam surrounds allow extended cone excursion for additional bass output and higher SPL.

Tweeter Mounting Options: The tweeters come with brackets to allow multiple mounting configurations: flush-mounted, angled flush-mounted (approximately 10°), and angled surface-mounted (approximately 15°).

Tweeter Dimensions:

  Flush Mount Angled Flush Mount Angled Surface Mount
Mounting Height 0.238" 0.563" 1.272"
Depth 0.532" 0.612" 0.554" (screw depth)
Frame Diameter 1.976" 1.976" N/A
Cutout Diameter 1.57" 1.587" N/A
Frame Width N/A N/A 1.688"
Frame Length N/A N/A 1.897"

Crossovers: The component system includes passive 2-way crossover networks for a seamless transition between the woofers and tweeters. The slope is 12dB per octave (both high pass and low pass) and the crossover point is 4000 Hz. A switch on each crossover allows you to set the tweeter output; 0 dB, +3 dB, or +6 dB. The crossovers' input and output wires are attached; the woofer output has quick slide terminals that connect directly to the woofer and the tweeter output has bullet terminals that mate to the terminals on the tweeter wires. The crossovers' dimensions are:

  • Length: 4.595"
  • Width: 2.463"
  • Height: 1.004"

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.

Kicker 40CSS674 Reviews

Average Customer Review:

26 reviews
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Kicker comp speakers

Written By Robert, Lake Mary, Florida on Sunday, March 08, 2015

Crutchfield Customer Review (What's this?)

I bought these for my front doors on my 2013 Chevy Silverado. My Chevy had the bone stock speakers no BOSE, so I started looking online. Crutchfield had the best prices hands down. The shipping was incredibly fast too. I would never look anywhere else to buy audio products due to their amazing customer service department.

Keep it up, and keep it loud.


Pros: Crystal clear audio, a lot louder than stock, best sounding speaker I have ever bought

Cons: A little pricey, but not too bad compared to most component speakers.

Kicker Components

Written By Neil, Harrisonburg, VA on Friday, February 20, 2015

This is my first experience with kicker speakers. I am a die hard polk fan, but I wanted to try something different. I have a yukon xl denali so the interior space is massive! I am running polk components up front and kicker in the rear. The kicker system is extremely bright. The woofers do an adequate job, but the tweeters are extremely bright. It is all about the sound you are looking for however. The quality is absolutely great! Personally I will be installing polk in the rear as well .

Pros: Pre-wired crossover Plug and play Great price

Cons: Tweeters are extremely bright ; cranking the music up seems to pierce the ears.

Very happy

Written By James, Va on Friday, January 23, 2015

Very happy with these speakers. I have had kicker speakers before and I again am quite happy. They have very good highs and mids. Bass is okay. But I am definitely going to buy a subwoofer. I have a clarion cz702 head unit. These speakers definitely need an amplifier though.

Pros: Great highs and mids

Cons: Under powered but that's my fault

Kicker 40css674

Written By D nybeck, New york on Tuesday, January 20, 2015

Crutchfield Customer Review (What's this?)

Great product at great price!

Pros: Small cross overs easily fit inside door panel or other tight spots Adjustable treeter settings Extremely chrisp tweeter sound Shallow magnets on woods allowing figment in tight spots Great mid sound out of woofers

Cons: Connections on woofers were very tight. Was afrade I was going to break the male end of the connection. Took my time and used a pick to open up femail end of the speaker wire connection and it installed with ease

Kicker 40CSS674

Written By Aaron, Sandpoint, Idaho on Saturday, January 03, 2015

Crutchfield Customer Review (What's this?)

Excellent sound quality and excellent customer service. Thanks again Crutchfield

Pros: Easy install

Cons: Could use a plate for door tweeters in factory location. The factory tweeters are a one piece design and had to build a mounting plate for new tweeters to install in factory location.

Kicker 40CSS674

Written By Anonymous, hughesville, pa on Saturday, October 18, 2014

Crutchfield Customer Review (What's this?)

Paired these with the infinity reference 475a amp things sound great especially for the crisp an clear highs great speaker for the price


Written By Lebron, Brewster ks on Sunday, September 28, 2014

Crutchfield Customer Review (What's this?)

Great sound and easy install

Pros: Sounds great. Easy install.

Cons: None:)

Great Sound for the Money

Written By Todd, TX on Monday, June 30, 2014

Crutchfield Customer Review (What's this?)

Put a set in my daughters impala and loved them, ordered another set for the Silverado.

Pros: Great Sound, Great Price.

Cons: None

kicker components

Written By Music Lover, Madison Heights, VA on Thursday, June 05, 2014

I installed these in my car and they sound great with just the radio. I will get another set for my truck next.

Pros: Good highs and mids with a little bass

Cons: None

Kicker speakers

Written By Tim, Marquette, MI on Saturday, May 24, 2014

Crutchfield Customer Review (What's this?)

Great sounding speaker paired with a Kenwood DPX500. Good quality sound.

Pros: Easy to wire.

Cons: Mounting was questionable. Came with clips that I still do not know what they are used for?

Great speakers.

Written By Kini, Kansas on Sunday, May 11, 2014

Sounds great despite running off my head unit alone, will sound amazing when I throw an amp in the mix!

Kicker 40CSS674

Written By 1effenguy, Ket, WA on Sunday, May 04, 2014

Crutchfield Customer Review (What's this?)

Great sounding set of speakers, easy installation

Kicker 40CSS674

Written By GaryK, San Antonio, TX on Friday, May 02, 2014

Crutchfield Customer Review (What's this?)

Nice sound. A good improvement over the factory speakers

Pros: Nice Sound

Cons: Mounting instructions left something to be desired. Had to fabricate the mounting for the tweeters. The screws and clips are poor quality and had to use many of my own because of the ones provided stripped out.

Kicker 40CSS674

Written By Dan R., Tuckerton NJ on Thursday, March 27, 2014

Crutchfield Customer Review (What's this?)

What can I say, they're Kickers they sound great.

Pros: Nice package, crossover, tweeter and woofer produce a very sweet sound on all genres. Adapter fit perfect.

Cons: None really. had to fabricate mounting plates for tweeters because of factory tweeter design.

Great Speakers

Written By Anonymous, Downsville,La on Wednesday, March 26, 2014

Crutchfield Customer Review (What's this?)

Love the speaker they sound great. Would definitely recommend the speakers.

Excellent Speakers!!!

Written By Rick, Chicago, IL on Monday, March 24, 2014

Crutchfield Customer Review (What's this?)

I was looking for speakers to replace my factory 6 3/4 door speakers that would also complement my amp. I was unsure at first as to whether to go with a component setup but after speaking to a Crutchfield advisor and other friends I decided to go with the Kicker 40CSS674. Once I got them installed and connected I must say these were great speakers with quite a bit of power the the highs sound great! I am thoroughly pleased with their performance so far and I definitely recommend these to anyone looking for a moderately priced pair of component speakers.

Pros: Power, very clean/clear, easy to install

Cons: None


Written By Anonymous, mo. on Sunday, March 23, 2014

Crutchfield Customer Review (What's this?)

Great sound

Pros: Easy install

Cons: .

Kicker 40CSS674

Written By Anonymous, Torrance, CA on Monday, November 11, 2013

Crutchfield Customer Review (What's this?)

Great sounding and have good base for a small speaker

Pros: Sounds great and bass is good

Kicker components

Written By Hyker, Brodalbin NY on Friday, August 30, 2013

Crutchfield Customer Review (What's this?)

Sound great at low speeds and low volume. Can hear them and still sound great. They are in a convertible so all the low end response goes literally out the 'windows'. Looking to get a small sub to full the void.

Pros: Quality sound for the cost.

Cons: Lack of instruction for the multi use component 'tweeter' mounts. I felt I had to guess.

Watch the tweeters

Written By Jared, Central, PA on Tuesday, August 13, 2013

Crutchfield Customer Review (What's this?)

The speakers sound amazing. As is to be expected. The only REAL issue is the box that comes to adjust the tweeters. The idea is great, however, it is a challenge to find a good place to put them where they can still be adjusted, but out of the way. I ended up just having to play with it for a while, and then keep it in the door. To adjust it now I have to take the whole door panel off. But, other than that, the speakers are great.

Pros: Sound Quality

Cons: Space options

kicks butt

Written By jpetersen, central ,ne on Monday, August 12, 2013

Crutchfield Customer Review (What's this?)

wow these sound real good paired with the kicker 6/34 2 ways in the back door and a kenwood kdc-bt555u the speakers took a couple days to "break in" they have real crisp highs and a solid mid range if your looking for serious base buy a sub if you want clear highs and mids this is the package for you

Pros: quality and value

Cons: none

Kicker 40CSS674

Written By Anonymous, eastland tx on Monday, July 29, 2013

Crutchfield Customer Review (What's this?)

Good factory upgrade

Pros: worth the money. Have them powered by mtx 75.4 and they handle the juice really well. The tweaters are loud but can take some punishment.

Cons: midrange is good but depending on the voice its sometimes muddy

Kicker component set

Written By chris, long island, new york on Thursday, July 18, 2013

Crutchfield Customer Review (What's this?)

Great sound and clarity from the tweeters and a nice full sound from the woofers.

Pros: Great full sound.

Cons: Had to make a custom mount to fit the tweeter into.

Excellent speakers

Written By JeffJ, Marietta , GA on Monday, June 17, 2013

Crutchfield Customer Review (What's this?)

Great sound, speakers were a big upgrade on my standard Tundra stereo.

Pros: Great Sound, Great Price

Cons: None

Good sprakers

Written By Anonymous, San Jose, CA on Monday, April 29, 2013

Crutchfield Customer Review (What's this?)

Good sounding speakers. Nice replacement over stock.

Kicker 40CSS674

Written By Anonymous, Houston Texas on Saturday, April 06, 2013

Crutchfield Customer Review (What's this?)

Awsome sound

Product reviews from the Crutchfield Labs

Kicker's Yellow Series of amps, speakers and subs gives you the performance you expect from Kicker at a more affordable price. And this year's models are better than ever.

What are the Labs?

Get everything you’ll need to enjoy your new Kicker 40CSS674

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
You'll need speaker wire to connect your speakers to your amp.
Keep your speakers clean and dry. They compress to fit behind your speakers.
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