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Kicker C12D4 (10C12D4)

200W 12" Comp Series Dual 4 ohm Subwoofer

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List price $129.95

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Bundled Savings with this Product

25% Off a Sealed Enclosure with Your Kicker Sub Purchase!

Add a Belva MDFS1215 Sealed Subwoofer Enclosure to your Kicker Subwoofer purchase and save $10. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.




Kicker C12D4 (10C12D4)



25% OFF

1.5 Cu Ft - Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS1215)


Special Price $29.99 ($39.99 if purchased separately)

1.5 Cu Ft - Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS1215)

• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals
• 1.5 Cubic ft Box Volume

25% Off a Sound Dampening Kit with Your Kicker Sub Purchase!

Add an NVX SDTK20 Sound Dampening Trunk Kit to your Kicker Subwoofer purchase and save $15. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.




Kicker C12D4 (10C12D4)



25% OFF



Special Price $44.99 ($59.99 if purchased separately)


• Eliminates Road Noise
• Quiets Vibrations
• Stops Rattles • Increases SPL
• Reduces Heat
• Simple To Install
• Easy To Form Aluminum
• Four Step Peel and Stick Installation
• Five 18" x 32" Pieces

(Offer 1 of 2)

Combined Total Price


You Save $10.00

High Value, High Performance

The Kicker C12D4 is equipped with all of the proven Kicker construction that you expect, and with an impressive updated look, the Kicker Comp is the complete package. It’s the best balance between high value and high performance in Kicker’s round-subwoofer lineup. The Comp is loaded with many of the innovations found in elite Kicker woofers, including the stiffest injection-molded cone with flex-killing, 360-degree back bracing, updated coil-cooling perimeter venting, high-temp voice-coil wire, and Spiraled tinsel-lead technology for ultimate durability. The Comp is also versatile, performing in vented or sealed enclosures, and in free-air applications as well. The Comp also makes perfect sense for any factory upgrade. With easy-to-use, nickel-plated push terminals, a resilient, updated steel basket, and yellow double-stitched surround, the Comp looks as good as it sounds. Four sizes are available with 4 or 8-Ohm single-voice-coil impedances.

Subwoofer Features:
  • 12" Dual 4 Ohm Competition (Comp) Series Subwoofer
  • Power Handling:
    • Peak: 400 watts
    • RMS: 200 watts
  • Impedance: Dual 4 ohm
  • Injection molded SoloKon cone
  • Optimized Polyfoam Ribbed Surround
  • Extremely rigid cone, along with 360-degree back bracing eliminates distortion
  • Double stitched surround for enhanced durability
  • Tinsel leads woven into the spider with Kicker's Spiralead technology
  • Single high-temperature voice coil
  • 45oz. Magnet structure
  • Frequency response: 27-500 Hz
  • Sensitivity: 88.3 dB
  • Mounting depth: 5-7/8"
  • Also found as: 10C12D4, C12-D4, Comp 12D4, Comp 12" 4 ohm,
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
2011 Kicker Authorized Online Dealer and eBay Seller

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Comp (Kicker)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
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.
400 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.
200 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
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
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).
27 - 500 Hz
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".
88.3 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
9.6 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
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.
Ribbed Poly-Foam
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Single Stacked
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
Optional (Accessory required and sold separately)
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.25 cubic feet
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
3.5 cubic feet
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.75 cubic feet
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
2.25 cubic feet
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.
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
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.


Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
30 Hz
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
95.18 liters
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
3.65 ohms
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.

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


Sacramento, CA

Its perfect

January 5, 2014

I bought this sub with my friends saying "oh its a comp, its cheap, its not that great" yeah no. Nobody said a word when they heard it. If you want a nice sub with more than enough kick- get this one. I bought it with the box that is suggested. The box is perfect for it, closed is the way to go.

13 of 24 found this helpful

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New York, NY

Verified Purchase
Good Bass, Great Sound

April 7, 2015

The C12D4 from Kicker is a 12" dual coil subwoofer. It can be used for low frequency enhancement in in car sound systems when paired with an amp and mid-range speakers.

The Kicker C12D4 brings out the punch in all my music. I've had other 12" speakers in my car and never really got the punch I'm getting from the Kickers. Even at low volume, you can still feel the punch in the music and the kick drum still sounds in your face. It really sounds balanced and natural. In addition, they look great too!

1 of 3 found this helpful

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Billy Trongh



October 25, 2012

Awesome sound and quality, a Must have!! Cheap price too!

10 of 21 found this helpful

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Tompkinsville, KY

great buy

February 16, 2014

I got two of these and they hit hard and clear. And fast shipping thanks sonic electronix.

12 of 32 found this helpful

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Accessory Tools and Products

Accessories added

Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil.

Your Price $29.99

20 Ft. of Kicker 12 Gauge Speaker Wire

Get true gauge Kicker speaker wire to match your Kicker subwoofer!

Your Price $34.95

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $59.99

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $94.95

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $69.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $6.99

40" x 15 Ft Piece of Premium Un-Backed Automotive Trim Carpet

Durable design for long life-span, available in many colors and shades.

Your Price $39.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Car Stereo and Speaker Installation Tool Kit

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

Your Price $16.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

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

Your Price $14.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $79.99

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $3.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

Kicker GR120

12" Speaker Grille for Kicker Subwoofers

Your Price $26.95

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

1 Kicker C12D4 (10C12D4) Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Kicker C12D4 (10C12D4) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Kicker C12D4 (10C12D4) Subwoofers

Mono Amp

4 Channel Amp

4 Kicker C12D4 (10C12D4) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 3 questions and 7 answers
Hide answersShow all answers | Sort by
Will this amp push 2 kicker 12s?
They are kicker C12D4.
They are 4ohm.
They call for rms 200 a piece so if I bridge them that would give both 200.
So I believe it will work great.
But ? I'm not sure
A shopper on Jan 29, 2015
Kicker 10C12D4
Kicker 10C12D4
Hifonics X200.2
Hifonics X200.2
Best Answer: You are correct if u bridge them correctly to a 4 ohm load then the amp will put out 400 watts rms. Two speakers are perfect rms for that amp at 400 watts rms combined!

Some advise is to use the wiring guides offered on the page that the 10c12d4 is located.
Reply · Report · Josh J on Jan 30, 2015
· Add Answer · I Have This Question Too (0)
Is this amp be a good match for two of these? I won't be under powering or over powering them right? Also has anyone tried these in this enclosure or even tried the enclosure itself? Finally is this overall a good first budget setup? And if you could recommend me with a good amp wiring kit for this setup that would nice too. Sorry for all these questions as you could probably tell, I'm a audio noob. Thanks in advance.
thirdwardtx713 on Apr 4, 2015
Kicker 10C12D4
Kicker 10C12D4
Rockford Fosgate R500X1D
Rockford Fosgate R500X1D
Best Answer: The amp would have enough power if the subwoofers were a different impedance. The subwoofers are have dual 4 ohm voice coils, this can be intimidating to someone who is new to car audio. Simply put, when you connect the subs to the amp, the subs will be wired to 1 ohm (so will speak in a 1 ohm language) where that amp will put out 500 watts at 2 ohms. So what you will need is either two dual 2 ohm subs or two single 4 ohm subs. I would suggest these subs wired in 2 ohm.

If you need help with the wiring, feel free to use sonic electronix wiring diagrams

As far as the box goes, it's a nice box but it's a little small for you. These subs require 1.75-2.25 cubic ft per sub in a ported box and ported boxes are better when they're built specifically for a subwoofer. I would suggest this sealed box instead.

For a wiring kit, I suggest this one. And you can save a few bucks on it when you buy it with the rockford amp.
Kicker 40CWD122
Kicker 40CWD122
Belva BAK42BK
Belva BAK42BK
Reply (1) · Report · Adam L on Apr 5, 2015
· Add Answer · I Have This Question Too (0)
will this amp push C12D4 kicker 12? I have two of them. They are rated for •Power Handling: ?Peak: 400 watts
?RMS: 200 watts. So with that said I believe it will push them.
Hayden B on Jan 27, 2015
Kicker 10C12D4
Kicker 10C12D4
Boss CER450.2
Boss CER450.2
Best Answer: Hello Hayden,

The figures match well, @4ohms Bridged. The subwoofers MUST be wired in Series/Parallel to a 4ohm .

However, to be fair, no Boss product will match the performance of a Kicker product. Boss is a fairly entry-level manufacture and is often used a temporary solution. As a reference, the intended amplifier for this setup is the Kicker DXA1000.1 , but we would use no less than the Hifonics X1100.1D in our installation department.
Reply (1) · Report · Customer SStaff on Jan 27, 2015
· Add Answer · I Have This Question Too (0)

Product Summary


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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 C12D4 (10C12D4)