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Kicker 40CSS674

6-3/4" component speaker system

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Our take on the Kicker 40CSS674

by John Pollard
Kicker

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.

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.

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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

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
General
Speaker Size 6 3/4
Design 2-way
Tweeter Design 3/4" Dome
Tweeter Composition Titanium
Woofer Composition Polypropylene
Woofer Surround Polyester Foam
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity 90 dB
Frequency Response 35 - 21k Hz
RMS Power Range (Watts) 2-100
Peak Power Handling (Watts) 300
Impedance (Ohms) 4
Top-mount Depth (Inches) 1 7/8
Bottom-mount Depth (Inches) 2 1/16
Cutout Diameter or Length (inches) 5 9/16
Product 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)

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 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"
 

Product reviews from the Crutchfield Labs (what are the Labs?)

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Kicker 40CSS674 Reviews

Average Customer Review:

21 people say:

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5 out of 5

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
Was this review helpful?    Yes | No
 
5 out of 5

Nicee

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:)
Was this review helpful?    Yes | No
 
5 out of 5

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
Was this review helpful?    Yes | No
 
5 out of 5

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
Was this review helpful?    Yes | No
 
5 out of 5

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?
Was this review helpful?    Yes | No
 
5 out of 5

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!
Was this review helpful?    Yes | No
 
5 out of 5

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
Was this review helpful?    Yes | No
 
4 out of 5

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.
Was this review helpful?    Yes | No
 
5 out of 5

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.
1 out of 1 people found this helpful
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5 out of 5

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.
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5 out of 5

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
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4 out of 5

E

Written By Anonymous, mo. on Sunday, March 23, 2014
Crutchfield Customer Review (What's this?)
 
Great sound
Pros:
Easy install
Cons:
.
Was this review helpful?    Yes | No
 
5 out of 5

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
Was this review helpful?    Yes | No
 
4 out of 5

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.
Was this review helpful?    Yes | No
 
4 out of 5

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
2 out of 2 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

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
3 out of 3 people found this helpful
Was this review helpful?    Yes | No
 
4 out of 5

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
1 out of 1 people found this helpful
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5 out of 5

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.
2 out of 2 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

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
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

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.
2 out of 3 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

Kicker 40CSS674

Written By Anonymous, Houston Texas on Saturday, April 06, 2013
Crutchfield Customer Review (What's this?)
 
Awsome sound
1 out of 7 people found this helpful
Was this review helpful?    Yes | No
 

2 questions already asked

how much better sound should i expect from my stock speakers in a 2004 chevy 2500 crewcab? [ Monty  Dec 25, 2013 ]
3 answers
  • My 2000 blazer was night and day but I they were 12 year old speakers I like the mids and highs the kicker components give and with the right songs my mirrors shake without a sub [ JAMES D   Dec 26, 2013 ]
  • Also depends a lot on your amp. I have 7 these speakers need a good amp to really go [ MICHAEL   Dec 26, 2013 ]
  • If you have a good spot for your tweeters (upper dash) these will blow up factory system away. But again look at you frequency range. These won't go as low as your factory speakers. They're louder, cleaner, and plays better mid bass. To really complete your system. Run a set of these and a sub. Or in my case 2 sets of these and two l7 [ MICHAEL   Dec 26, 2013 ]
does this come with enough speakers for the front and back and both sides of my car or just one side? [ Kevin  Nov 25, 2013 ]
1 answer
  • This package contains two woofers, two tweeters, and two crossovers. Feel free to reach out to an Advisor by phone or chat for advise on which speaker set will be best for your vehicle. [ Jeff Staff  Nov 25, 2013 ]

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For a more in-depth review and enhanced detailed information on the Kicker 40CSS674, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_2064CSS674/Kicker-40CSS674.html ).