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Kicker 40CS674 (CS674)

6-3/4" 2-Way CS Series Coaxial Car Speakers

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List price $89.95

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with warranty A Pair

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Kicker 40CS674 (CS674)

6-3/4" 2-Way CS Series Coaxial Car Speakers


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20 Ft. of 12 Gauge AWG Q-Series Speaker Wire

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Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.


NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!



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Receive 25% off the SDSK2 Sound Dampening Speaker Kit when you add to your Speaker purchase. Simply click the "Add Both to Cart" button.




Kicker 40CS674 (CS674)



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Special Price $5.99 ($7.99 if purchased separately)


• Eliminates Road Noise
• Quiets Vibrations
• Stops Annoying Rattles
• Increases SPL
• Reduces Heat
• Simple To Install
• Peel and Stick Installation
• Two 10" x 10" Pieces

(Offer 1 of 1)

Combined Total Price


You Save $2.00

Kicker Audio Store

Kicker Audio: Quality, Performance, and Passion
(Sonic at Stillwater Designs HQ)

General Features:

  • 6-3/4" CS Series 2-Way Car Speakers
  • Power Handling:
    • Peak: 600 watts per pair / 300 watts each
    • RMS: 200 watts per pair / 100 watts each
  • Polypropylene cone material
  • Durable, Ribbed UV-Treated Polyester Foam speaker surround for precise linear excursion
  • Lightweight 1/2" Polyetherimide (PEI) Balanced Dome tweeter design for superb clariy
  • Neodymium tweeter magnet motor structure
  • EVC (Extended Voice Coil) technology for high thermal handling
  • Shallow mounting design allows fitment into virtually any vehicle
  • Substantial upgrade from factory speakers
  • Includes speaker grilles and mounting hardware
  • 4 ohms impedance
  • Frequency response: 40-20,000 Hz
  • Top-mount depth: 1-13/16"
  • Cutout Dimension: 5-1/2"
  • Sensitivity: 90dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Priced Per Pair

2011 Kicker Authorized Online Dealer and eBay Seller

Speaker Specifications

This is the manufacturer product line of speakers.
CS (Kicker)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6-3/4" (Oversized 6-1/2")
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

PEI (Polyetherimide)
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Polyester Foam
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
300 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
100 watts
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
90 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
40 - 20000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Bottom-Mount Depth
The depth when installed from the bottom of the mounting surface. Measured from the bottom of the speaker's magnet to the top of the mounting holes on the rim of the speaker.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches, required to contain the speaker.
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Number of Speakers
This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

Please refer to the product image and description for further details about the speaker.


Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



Nice little speakers

February 22, 2015

Love these speakers especially for the price. Put them in my work van powered only from the head unit. Crisp clean screaming loud highs, good mids, and they pick up slightly more bass than I thought they would. Not enough to skip getting a sub but decent if you are really tight on money.
Paired with a kicker 10", van sounds amazing. Would recommend

27 of 50 found this helpful

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Dj Ohmeien

Gig Harbor, WA

Ohhhh Myyyy...

January 2, 2014

These speakers are amazing..their craftsmanship is just uncanny to anything I've ever seen, or heard. Hands down if you've got the cash get these guys. They're hardly installed cause if rare complications with my interior. They are a solid fit, and are LOUD AND CRISP.... These dominate every speaker in my car, other than the sub in my trunk. I'd recommend over and over again..can not say enough. Get at em!!

30 of 57 found this helpful

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Rochester, NY

Easy to install sound bugger than look

September 27, 2015

Very loud very crisp and shocking bass very impressed didn't expect thin tiny speakers to be this loud or clean wow

0 of 0 found this helpful

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Milwaukie, OR

Sounds Amazing in my 04 Durango

September 9, 2013

I have six of these running in my 04 Durango. 4 in the door, 2 in my back hatch plus 2 12" Kickers . All running on a 5 channel Boss Extreme CXX2705.
Sounds Awesome, Clarity is there. I love the separation. Kicker did good with these.

30 of 60 found this helpful

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Good speakers

April 21, 2015

These speakers sound awesome and i recommend them to anyone looking for just awesome clean sound and great midbass. have yet to put an amp on them but that time is coming soon!

16 of 33 found this helpful

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Alvin, TX

Great speakers

January 27, 2015

I bought these for the wife because the speakers that were in her ride were crackling. So new speakers and an amp and lets roll. She's a HAPPY CAMPER now

29 of 59 found this helpful

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Jon Snow


Great Product, Great Quality

December 16, 2013

Delivers a very clean sound that will stay clean for very high volumes. Mine personally fill the cabin perfectly and couldn't ask for better speakers
under $70. Even though I am getting subs later, these will provide lows into a certain range(more than you expect them to). All I have to say is I am very pleased and these punch nicely.

24 of 49 found this helpful

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Accessory Tools and Products

Accessories added

20 Ft. of 12 Gauge AWG Q-Series Speaker Wire

20 Feet of true gauge Kicker speaker wire.

Your Price $34.95

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $44.95

Belva 23 ft. of True Spec 12 Gauge Speaker Wire

100% Copper Clad Aluminum, high strand count with ultra-flexible PVC blended jacket for easy installation

Your Price $14.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $16.99

NVX XTGSP2 Tone Generator and Speaker Polarity Tester

Perfect for safely troubleshooting and testing audio systems

Your Price $29.99

Belva Five Piece Installer's Panel Removal Tool Kit

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $11.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $29.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $7.99

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $17.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

NVX Sound Dampening Rubber Roller

Install your Sound Dampening with ease using this heavy duty rubber roller!

Your Price $4.99

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $5.99

12-10 AWG Yellow T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.99

12-10 AWG Quick Disconnect Connectors

These yellow quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $6.99

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Browse 4 questions and 13 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
These are for my grand son for Christmas. We put some Boss Chaos speakers in his vehicle, and they do not sound very good. We are going to replace them.
Ron M on Nov 11, 2015
love kicker
Lee H on Oct 11, 2015
i like products
marko d on Nov 2, 2015
Same heard the brand is good. I give you more info after I try them.
Ubaldo C on Sep 18, 2015
can I take 4 6.5 4 ohm speakers and wire them in a 2 ohm configuration and run them on 2 ohm amp instead of 4 ohm amp?
A shopper on Mar 1, 2015
Best Answer: Hello,

There really is no such thing as a "2 ohm amp [or] 4 ohm amp" . However, the answer to your question will fall upon the amplifier you are referring to. If its providing the proper figures needed @2ohms, then its implying that it Is stable at that load, and the answer will be Yes. The speakers themselves do not care what load you wire them up to, as long as they are given a proper clean signal .
Reply · Report · Customer SStaff on Mar 1, 2015
· Add Answer · I Have This Question Too (0)
Quick question,does this speakers have build in tweeter crossover?(cap)?,second q,when i see on the description e.g 135 rms,and there is not referred on each speaker,does it really means its 135 each? or i have to always divide it?
stefanos k on Nov 30, 2014
Best Answer: Yes there is a build in cross over, and to your second question. Unless this is an updated model. These are 100rms a piece and 300 watt peak
Reply · Report · George W on Nov 30, 2014
· Add Answer · I Have This Question Too (0)
Do I need an amp?
A shopper on Oct 14, 2014
Best Answer: Hello,

Although an amp is Not necessary, you will NOT get the performance to justify the price and potential of the set. The Kicker 41DSC67 is a far better option if you do not wish to add an amplifier.

Kicker 41DSC67
Reply · Report · Customer SStaff on Oct 14, 2014
· Add Answer · I Have This Question Too (0)

Product Summary


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Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Kicker 40CS674 (CS674)