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Kicker 40CWR124

CompR Series 12" subwoofer with dual 4-ohm voice coils

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Our take on the Kicker 40CWR124

by John Pollard
Kicker

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Brace yourself 

Kicker designed their CompR line of subs for people who love to hear strong bass when their music's playing. Built from the ground up with performance in mind, these subs handle plenty of power to give you the baddest bass available from the legendary Comp line.  

Kicker 40CWR124

Change this subwoofer's impedance with a flick of the built-in switch.

Read more

Overbuilt? More like built just right

Kicker's 40CWR124 12” subwoofer comes equipped with a tough, polypropylene cone that stays rigid during intense play sessions so you hear accurate bass. A custom-designed back and top plate give the woofer plenty of room to travel, while the durable rubber surround helps to control cone movement during a heavy workout. This sub uses extensive venting in its heavy steel basket to shrug off heat, so you can count on reliable performance.   

Say hello to system flexibility

This Kicker CompR will handle up to 800 watts RMS so make sure you have an amplifier that'll do it justice. Its dual 4-ohm voice coils make it easy to connect to a mono amplifier, and this versatile sub works well in sealed or ported enclosures.

To drive this single subwoofer, we recommend a mono amplifier rated between 600 and 1200 watts RMS at 2 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

Highlights:

  • 12" subwoofer with dual 4-ohm voice coils
  • injection-molded polypropylene cone
  • rubber surround
  • power handling: 100-800 watts RMS (400 watts per coil)
  • peak power handling: 1,600 watts
  • frequency response: 25-500 Hz
  • sensitivity: 86.9 dB
  • top-mount depth: 5-3/4"
  • sealed box volume: 1.0 - 4.6 cu. ft.
  • ported box volume: 1.75 - 2.25 cu. ft.
  • warranty: 1 year
  • Our 60-day money-back guarantee

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

Features and Specs
Size 12 -inch
Impedance 4 ohms
Cone Material Injection Molded Poly
Surround Material Santoprene
Ideal Sealed Box Volume (cubic feet) N/A
Ideal Ported Box Volume (cubic feet) N/A
Port diameter (inches) N/A
Port length (inches) N/A
Free-Air No
Dual Voice Coil Yes
Sensitivity 86.9 dB at 1 watt
Frequency Response 25 - 500 Hz
RMS Power Range (Watts) 100-800
Peak Power Handling (Watts) 1600
Top Mount Depth (inches) 5 3/4
Bottom Mount Depth (inches) N/A
Cutout Diameter or Length (inches) 10 7/8
Vas (liters) 65.294
Fs (Hz) 32.6
Qts 0.648
Xmax (millimeters) 0
Parts Warranty 1 Year
Labor Warranty 1 Year
Product Research
What's in the box?

Download owner's manual

  • One 12" Dual 4-ohm voice coil subwoofer (with impedance switch)
  • Kicker logo stickers
  • Manual (English/ Spanish/ German/ French)
  • Template on box

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

Dual 4-ohm Voice Coils: This woofer features dual 4-ohm voice coils, offering wiring flexibility. A switch on the speaker terminal allows you to easily change from parallel (the woofer presents a 2-ohm load) to series (the woofer presents an 8-ohm load) wiring for the voice coils.

UniPlate Construction: The woofer features a one-piece UniPlate construction with a vented, extended pole piece and backplate. This unique design provides the following benefits:

  • Optimizes heat transfer efficiency for cooler operation
  • Eliminates erratic magnetic flux in the voice coil gap
  • Releases pressure under the suspension for uniform cone movement
  • Prevents the voice coil from bottoming out, and the resulting damage

Tinsel Leads: CompR subwoofers use Spiralead tinsel-lead technology; the tinsel lead wires are woven into the spider to relieve mechanical stress.

Enclosure Compatibility

Sealed Enclosure Applications: Sealed enclosures provide the most control over a woofer and provide accurate sonic reproduction, making them suitable to all types of music. Kicker recommends sealed enclosures in the following range:

  • Minimum Enclosure Volume: 1.0 ft³
  • Maximum Enclosure Volume: 4.6 ft³

Vented Box: Vented (or ported) enclosures typically provide better overall efficiency than sealed so they are suitable for use with smaller amplifiers, giving you more bass output from less power. Kicker recommends ported enclosures in the following range:

  • Minimum Enclosure Volume: 1.75 ft³ with a 12.5" x 2.5" x 20" slot port
  • Maximum Enclosure Volume: 2.25 ft³ with a 12.5" x 3" x 20.5" slot port
 
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Kicker 40CWR124 Reviews

Average Customer Review:

4 people say:

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5 out of 5

UNDER RATED PERFORMER

Written By A BEDI, COSTA MESA,CA on Sunday, July 13, 2014
Crutchfield Customer Review (What's this?)
 
I find this speaker to be extremely efficient. Even with the volume turned down very low you can hear every Bass note, Crystal Clear. And if you want to wake up the neighbors, this sub hits as hard as you want. It's all about tuning the enclosure port to match the sub and enclosure size.I highly recommend the use of a Ported enclosure as that is one way to let the heat out and keep the speaker at a lower and cooler temperature. A cooler Voice Coil will produce better clarity and better responsiveness. In fact I will highly recommend the Kicker 40VCWR122 over the 40CWR124 as that enclosure is designed by kicker. Tuning the enclosure port is a science and is very specific to that particular sub that is being installed in it. I trust the manufacturer's enclosure will definitely be the best and most accurate one available commercially. It will be worth spending the extra $50. In fact since I am so happy with the Kicker 40CWR124, I am now going to place an order for the Kicker 40VCWR122 for my other car.
Pros:
Price, Quality, Power
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"Coolness Factor"
Build Quality
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Value
 
5 out of 5

Great product

Written By MC, 01960 on Sunday, May 25, 2014
Crutchfield Customer Review (What's this?)
 
Fantastic sound, hits hard and tight!!
Pros:
Easy to wire if your not familiar with dual voice coil subs
Cons:
In a multi sub system, voice coil terminals rather than a switch would be preferred. It can be somewhat limiting.
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
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Value
 
5 out of 5

Kicker 12" Comp R

Written By Justin, Gardner, MA on Monday, February 24, 2014
Crutchfield Customer Review (What's this?)
 
I had a kicker 12" Comp VR previous to this CompR and Theres a major difference in sound and qaulity! A+++
Pros:
Easy to install, great sound, great price!
Cons:
ill let you know if and when i find one! :)
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"Coolness Factor"
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3 out of 5

great sound

Written By Tanner M, Roswell NM on Tuesday, December 03, 2013
Crutchfield Customer Review (What's this?)
 
Sounds really good in a sealed box in my extended cab chevy under the seats
Pros:
Easy to hook up and sounds amazing. It mad my roof vibrate
Cons:
I am having had very good luck with them and have blown a few.
2 out of 7 people found this helpful
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"Coolness Factor"
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1 question already asked

I have a kicker 1200w amp a 12cx6001 and a 12" 800w kicker sub with a 1 or 4 ohms what do I set my ohms to on the sub 1 or 4 ? [ jeff  Jun 28, 2014 ]
1 answer
  • I forwarded your question to an Advisor and they responded with the following: It all depends on which Kicker subwoofer it is and if you're putting a 4 ohm load on the amp by how you wire the subwoofer. This amp actually is putting out 600 watts RMS at 2 ohms so if the subwoofer is wired in such a way that you put the 2 ohm resistance on it you can set it to 1 or 2. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy Staff  Jun 30, 2014 ]

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For a more in-depth review and enhanced detailed information on the Kicker 40CWR124, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_2064CWR124/Kicker-40CWR124.html ).