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Kicker 40CS684

6"x8" 2-way car speakers

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Item# 2064CS684 offer details

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Kicker

Why replace your car's original speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Our take on the Kicker 40CS684

by John Pollard

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 40CS684 speaker set provides low-end from a tough 6"x8" 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.

Highlights:

  • 2-way 6"x8" speakers (pair)
  • polypropylene woofer cone with polyester foam surround
  • 1/2" PEI balanced dome tweeter
  • power range: 2-75 watts RMS (225 watts peak power)
  • frequency response: 45-20,000 Hz
  • sensitivity: 90 dB
  • top-mount depth: 2-5/16"
  • warranty: 1 year
  • Our 60-day money-back guarantee
Shop all Kicker 5"x7"/6"x8" Speakers
     

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

    Features and Specs

    Features and Specs
    General
    Design
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    2-way
    Tweeter Design
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    1/2" Balanced Dome
    Tweeter Composition
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    PEI
    Woofer Composition
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    Polypropylene
    Woofer Surround
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    Polyester Foam
    Parts Warranty
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    1 Year
    Labor Warranty
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    1 Year
    Specifications
    Sensitivity
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    90 dB at 1 watt
    Frequency Response
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    45 - 20k Hz
    RMS Power Range (Watts)
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    2-75
    Peak Power Handling (Watts)
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    225
    Impedance (Ohms)
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    4
    Top-mount Depth (Inches)
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    2 5/16
    Bottom-mount Depth (Inches)
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    2 11/16

    Product Research

    Product Research
    What's in the box?

    Download owner's manual

    • 2 Coaxial speakers
    • 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)

    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 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.

    Mounting Applications: While Kicker describes this speaker as a 6x8, it also fits many 5x7 applications. Please check the Crutchfield Vehicle Selector to confirm fit.

     

    Product Reviews

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    Reviews for the Kicker 40CS684

    Average Customer Review:

    13 people say:

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    Showing: 1-13 of 13
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    5 out of 5

    Awesome!!

    Written By Alex, Mi on Sunday, May 19, 2013
    Installed in a 1999 Ford F-150
    Crutchfield Customer Review (What's this?)
     
    I bought the speakers because I seen a lot of good reviews and how u can just throw then in and they work (no need for a amp) that is very true I just plugged then in my truck 1999 ford f150 and they sound great too loud and deep bass!, there made well also I am very pleased I will buying another pair for the back door speakers soon!!
    Pros:
    Made well, loud, deep bass, sounds great, great upgrade from stock!
    Cons:
    None
    Was this review helpful?    Yes | No
     
    4 out of 5

    Very Good, sounds great

    Written By WoodieT, Prattville, AL on Friday, May 17, 2013
    Installed in a 2005 Ford F-150
    Crutchfield Customer Review (What's this?)
     
    These speakers don't have tons of bass, but they do sound better than my factory speakers and can handle more power. Super easy to install in my f150
    Pros:
    sound great, easy install, high quality, good value
    Cons:
    not a ton of bass
    Was this review helpful?    Yes | No
     
    4 out of 5

    i like it!

    Written By mikey, hilo, Hawaii on Tuesday, May 14, 2013
    Installed in a 2005 Ford F-150
    Crutchfield Customer Review (What's this?)
     
    great sound, easy install, great deal. I like it
    Pros:
    good looks and sound
    Cons:
    none
    Was this review helpful?    Yes | No
     
    5 out of 5

    Great Upgrade

    Written By Johnny P, Ohio on Saturday, May 11, 2013
    Installed in a 2006 Ford Explorer
    Crutchfield Customer Review (What's this?)
     
    Super upgrade over factory speakers. Very happy
    Pros:
    Good quality. Hard to beat for the money.
    Cons:
    None
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Great Upgrade over stock

    Written By Tim, Wilder, ID on Tuesday, May 07, 2013
    Installed in a 2011 Ford F-150 XLT
    Crutchfield Customer Review (What's this?)
     
    Works great, not a lot of bass difference, but I hear notes in songs that I didn't even were there before.
    Pros:
    Great sound and value for the price, direct fit replacement
    Cons:
    doesn't add a lot of bass, but I didn't expect it to.
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    4 out of 5

    great upgrade

    Written By cwood, napavine wa on Friday, May 03, 2013
    Installed in a 2000 Ford F-350
    Crutchfield Customer Review (What's this?)
     
    Great upgrade over stock for the price no distortion even when turned up all the way
    Pros:
    Great sound even when turned up all the way
    Cons:
    Could use a little more bass
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    3 out of 5

    Good upgrade

    Written By lt, Pennsylvania on Wednesday, May 01, 2013
    Installed in a 2001 Ford Explorer Sport
    Crutchfield Customer Review (What's this?)
     
    Better than factory speakers
    Pros:
    Accurate non distorted sound
    Cons:
    Not really high end. That's expected at this price though
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    1 out of 5

    Kicker 40CS684

    Written By 2dogs7, Indianapolis IN on Friday, April 26, 2013
    Crutchfield Customer Review (What's this?)
     
    I used these speakers in an attempt to upgrade the sound of the original equipment speakers in my 2013 F150. I found the original equipment speakers quite lacking. I didn't want to spend a lot of money. I didn't think that I would need to in order to get a noticeable improvement over the stock speakers. Short version: I didn't feel that there was any improvement at all with these speakers, and, I have a very good ear for these things. I frequently notice many nuances that other people do not. My main issue with these speakers is that they are very "loose" sounding, slightly dark and with flabby lows. Very much like the stock ones minus the darkness. Sound is a subjective and some people seem to love kickers. However if you do I would suggest a higher grade ones.
    Pros:
    None
    Cons:
    "Loose" undefined lows. Slightly dark and inefficient.
    Was this review helpful?    Yes | No
     
    5 out of 5

    Kicker Kicks up the volume

    Written By GaryV, DeFuniak Springs, FL on Thursday, April 18, 2013
    Crutchfield Customer Review (What's this?)
     
    I didn't intend to replace the speakers until I talked with the guys at Crutchfield. I bought a system 6 years ago and have enjoyed every tune. I took their advice and the sound improvement was amazing. Well worth the money and the extra effort. You're in good hands with Crutchfield.
    Pros:
    Good improvement / overall sound quality.
    Cons:
    no cons
    Was this review helpful?    Yes | No
     
    1 out of 5

    Kicker 40CS684

    Written By Mike, Kauai, Hawaii on Thursday, April 18, 2013
    Installed in a 1997 Ford F-150
    Crutchfield Customer Review (What's this?)
     
    Just installed in my F-150. At low volume, sound ok. At higher volume have extreme distortion and rumbling. Definitely do not recommend. Stock speakers were better by far.
    Pros:
    Fit well.
    Cons:
    Sound horrible.
    2 out of 3 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Good kicker does it again

    Written By David R, beaumont tx on Wednesday, April 03, 2013
    Crutchfield Customer Review (What's this?)
     
    Kicker saves the day again you can't go wrong with these in your car or truck great sound fit is nice and also lookes good
    Pros:
    Every thing about it is good
    Cons:
    Not a bad thing to as its a kicker
    1 out of 3 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    great sound

    Written By david riedinger jr, Beaumont TEXAS on Sunday, March 24, 2013
     
    Great upgrade for my 07 ford f~150
    Pros:
    I got them on time and they fit great and sound even better then they look. And yes they do look good. Would buy them for my wifes car if she wants me to i loved getting stuff in from cruchfield and going to work on my truck or her car to make them sound the best it can
    Cons:
    There is really no cons about it. It does its job and kicker did a great job on this one the price is not bad. You can spend more but i think i i got more than my moneys worth with the 2 sets i got
    3 out of 5 people found this helpful
    Was this review helpful?    Yes | No
     
    4 out of 5

    Kicker 40CS684

    Written By Anonymous, Arkansas city kansas on Thursday, March 21, 2013
    Installed in a 2005 Ford F-150
    Crutchfield Customer Review (What's this?)
     
    Great upgrade over stock speakers
    Was this review helpful?    Yes | No
     
    1-13 of 13

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    Smart people protect with SquareTrade- The best warranty at the best price

    SquareTrade Warranty
    SquareTrade Warranty 3 Year Warranty
    Your Price: $9.99
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    In business since 1999, SquareTrade is the largest independent warranty provider in the U.S.

    100% parts and labor - no deductibles

    All mechanical and electrical failures covered, includes normal wear and tear.

    Your item's repaired or the full item price returned withing 5 days

    Runs concurrent with manufacturer's warranty

    Rated 5-stars by consumers

    For a more in-depth review and enhanced detailed information on the Kicker 40CS684, please visit the Crutchfield website product page (/S-vHat7Y39tHi/p_2064CS684/Kicker-40CS684.html ).

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