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Kicker 40CS674

6-3/4" 2-way car speakers

414 Reviews | 15 questions - 20 answers

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Overview

Our take on the Kicker 40CS674

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.  

Kicker 40CS674

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.  

Built tough

Kicker's 40CS674 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 1/2" PEI balanced dome tweeter takes care of the vocal and instrumental details that'll really bring your music to life. These speakers sound great powered by a factory radio or an aftermarket car stereo, and they'll really rock when connected to an external amplifier. Grilles are included.

Installed 4 of these in my daughters first car, a 2008 Pontiac Vibe. A great upgrade to the factory speakers, no comparison, get these!

Jay, Las Vegas, NV

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What's in the Box:

  • Two coaxial speakers
  • 2 Grilles
  • Two 11" 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)

Product Highlights:

  • 2-way 6-3/4" speakers (pair)
  • polypropylene woofer cone with polyester foam surround
  • 1/2" PEI balanced dome tweeter
  • power range: 2-100 watts RMS (300 watts peak power)
  • frequency response: 40-20,000 Hz
  • sensitivity: 90 dB
  • top-mount depth: 1-7/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee
Reviews

Kicker 40CS674 Reviews

Average Customer Review(s):

(414 Reviews)
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Details

Hands-on research

Features and Specs

General
Speaker Size 6 3/4
Design 2-way
Tweeter Design 1/2" Balanced Dome
Tweeter Composition PEI
Woofer Composition Polypropylene
Woofer Surround Polyester Foam
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) 90
Sensitivity at 2.83 volts N/A
Frequency Response 40 - 20k Hz
Minimum RMS Wattage 2
Maximum RMS Wattage 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 7/16

Product Research

Features

Polypropylene Woofer Cones: The Kicker CS-series speakers feature durable polypropylene woofer cones, resistant to 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.

1/2" PEI Balanced-dome Tweeters: The 1/2" PEI (polyetherimide) balanced-dome tweeters provide a smooth high frequency response with quick, detailed and spatially-correct imaging. The tweeters have strong neodymium magnets for higher power handling.

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.

Accessories
Staff Reviews

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. This year's models are better than ever.

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Q & A

Customer Q&A

15 questions already asked

I currently have Bose in my Altima, and had kickers in my last Altima. Midrange and highs are comparable (I didn't have my kickers amplified, but my Bose system is). Bass was decent for 6 3/4" speakers that weren't amplified, but I've heard that they really come to life with the extra power. The bass from my Bose system is significantly more powerful than the kickers, but the comparison isn't apples to apples. Mids and highs were crisp and clear even at high volumes though. I read a review where a guy put these in his vehicle and was disappointed because it was the same as the Bose system he replaced. That by itself probably answers your question pretty well. [ Justin  Nov 16, 2016 ]
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the installation on the product. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/. [ Kenny  May 30, 2016 ]  Staff
Per the research we have on file for your '06 Nissan Sentra (w/ the Rockford system), the factory rear deck speakers are actually 4-ohm impedance; so the Kicker speakers would work just fine as rear deck replacements in your vehicle. For more info on fitment and compatibility with your vehicle, feel free to reach out to an Advisor using the "Contact Us" link at the top of the webpage. I hope that helps! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=159 [ Larry  May 13, 2016 ]  Staff
You can check to see if this will fit your vehicle by using our Outfit My Car tool: http://www.crutchfield.com/car/carselector.aspx For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Kenny  Mar 14, 2016 ]  Staff
Sure are, I ran a Pioneer head unit in all of my vehicles and never had an issue with speaker choices. You may have to play with the head units equalizer to get the best sound but no worries about ruining anything. [ Gregory  Jan 25, 2016 ]
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Kenny  Jan 06, 2016 ]  Staff
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Oct 16, 2015 ]  Staff
They are rated for 4ohm but they are kickers. I have installed 4 8inch comp kicker that where rated for a 4ohm and put them in a 2 ohm load. NO PROBLEMS. they ran for years and loud. So I would say yes but I am no expert. Love Kickers. Wish I still had old school punch 45 amp. [ PHILIP R  Sep 21, 2015 ]
Hello, I own a 2002 Nissan maxima and upgraded my stereo system and both these speakers. They are ok nothing to incredible about them. I would get infinity speakers or boss. Hope this helps [ AUSTIN  Sep 09, 2015 ]
Don't know about "best" but I really like them in my 2004 Colorado. I bought a whole set but only replaced the rears which were blown. The fronts still sound ok so did not bother to change them yet. These speakers are really clear on highs and mids, can't comment on lower frequencies since I have a sub for that. 2015+ Colorados were changed a lot though so not sure how these speakers would stack up against your stock sound system. [ FLINT  Sep 09, 2015 ]
Sorry, but do not know at all. BUT my experience with "minor alterations", turned out to be a simple process of using tabs a, b, or c, on an install; but that was a radio mounting. My guess possible hole needs to be drilled, or it is because of the exterior grill, instead of stock cover in car. Check a mini forum for more speaker detail information from others ? [ JOHN  Jul 20, 2015 ]
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Greg  Jul 20, 2015 ]  Staff
I changed out my 4 Jenson speakers with the "Kicker" . I was very pleased with them. [ GARLAND T  Jun 08, 2015 ]
Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget. [ Krissy  May 18, 2015 ]  Staff
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Feb 11, 2015 ]  Staff
I forwarded your question to an Advisor and they responded with the following: These speakers are very efficient and will normally sound awesome with any factory radio but we'll need to know more info about your vehicle you'll be putting in because some factory systems use 2 ohm speakers. If your factory speakers are 2 ohm and you put the aftermarket 4 ohm you get twice the resistance or half the volume. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy  Aug 06, 2014 ]  Staff
Replaced the front speakers of my 2012 Sonic with these, pleased so far but will be adding a second set for the rear and an amplifier to round things out. [ Jeremy  Sep 19, 2015 ]
Sorry I have not, but these speakers sound amazing. [ ANTONIO  Dec 28, 2013 ]
Mine were installed in the front doors of 1998 Volvo V70 so no clue from me for Scott - but these are great speakers for the money - on mine way mounted had to retrofit factory enclosure ripping out original speaker as mounted and then remount speaker in enclosure with bolts [ KENNETH  Dec 27, 2013 ]
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