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Kole Audio MFW-12

12" Single 4 ohm Super Flat Series Car Subwoofer

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Kole Audio MFW-12

12" Single 4 ohm Super Flat Series Car Subwoofer

$99.99

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NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

$39.99

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20 Square Feet of Sound Dampening Material

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

$53.99

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2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

$7.99

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  • 12" Single 4 ohm Super Flat Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 500 watts
  • Impedance: Single 4 ohms
  • Titanium/Aluminum Cone
  • Cast Aluminum, Flat Basket
  • Large Foam Rubber Surround
  • Black Poly/Cotton Spider
  • Woven Flat Tinsel Leads
  • XL Chrome Front and Back Plate
  • Chrome Push Terminals
  • Sensitivity: 91 dB
  • Magnet Structure: 230 oz.
  • 1-year Manufacturer's warranty

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
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.
1000 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.
500 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.
Single
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
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Sensitivity
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".
91 dB
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.
Silver
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.
Titanium/Aluminum
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.
Treated Foam
Magnet Structure
Defines the overall structure of the subwoofers magnet.
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.
No
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.
No

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.

Sealed
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.
1.2 cubic feet
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in 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.
1.2 cubic feet
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in 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.
4"
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.

Yes

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.
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.
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.
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.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
73%
4 Star
18%
3 Star
0%
2 Star
0%
1 Star
9%

Average Attribution Rating

Durability
4.5
Value
4.8
Features
3.9
Design
4.5
Usability
4.3
Derbyguy74

Lathrop, MO

Overall
Durability
Value
Features
Design
Usability
GREAT!!!

September 19, 2011

Great product for great price. Sounds great in truck box or trunk box. Definatley would buy again.

10 of 12 found this helpful

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trav

Mayfield, ky

Overall
Durability
Value
Features
Design
Usability
Slammin

January 25, 2011

My friend bought two of these subs. he has em bridged on a 1000 watt amp. these subs SLAAAMMMM. buy em

10 of 12 found this helpful

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roberto

chicago il

Overall
Durability
Value
Features
Design
Usability
they sound great

April 15, 2012

The speakers sound great I have one in an angled ported flat box under the rear seat with a 2500 wat amp. I have friends with 2 12" speakers and just one of the kole audio sounds way better. Will definetly buy another so I have the pair.

9 of 11 found this helpful

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Lavell

Saint Louis, MO

Overall
Durability
Value
Features
Design
Usability
Loudest Subwoofers

March 14, 2012

It's like you can hear me before you see me. When i'm coming, subwoofers give off a very big bang. People always ask me what's in the trunk. 15"? Naw they are 12" woofers. I love these subs the best and killing audio game. Like wow man.

9 of 11 found this helpful

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Derbyguy74

Lathrop, MO

Overall
Durability
Value
Features
Design
Usability
Good Subs for very small spaces.

March 29, 2011

I put a pair of these subs in my 88 Chevy K1500 regular cab truck. I was suprised the bass they put out for being shallow mount subs. It was a major downgrade for me but give me just enough bass. I'm pushing 450watt RMS and 900 watt Max to each sub. My box is 49in wide-17in tall-5in deep.

10 of 13 found this helpful

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AZW

CA

Overall
Durability
Value
Features
Design
Usability
Does its job

January 10, 2011

When this subs is on its like having a back massage.

10 of 13 found this helpful

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me

la, ca

Overall
Durability
Value
Features
Design
Usability
a lot of bass in not a lot of space

October 26, 2010

Works great. Limited space in my coupe and this thing hits hard and loud. I would recommend this to my friends.

9 of 11 found this helpful

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DC

DECATUR IL

Overall
Durability
Value
Features
Design
Usability
KOLE

February 14, 2012

I know what you are thinking. But let me tell you worth every penny. Awesome sound quality. I am runnig two off an american bass ph4000. They slam. Plus they recommend seald box but i have mine in a bandpass box sounds great. Buy them while you can.

8 of 10 found this helpful

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Randy J.

Jackson,MS

Overall
Durability
Value
Features
Design
Usability
They could not handle the wattage

May 10, 2012

I recently purchased a pair of these subs.I have a 2003 f150 supercrew. The stereo installers could not fit both of the subs underneath the rear seat, so I elected to install one. I picked up my vehicle at 5pm, and by 5:30 pm, the speaker was toast. I replaced the blown sub with the second sub; it too was toast within 30 after getting the vehicle out of the stereo shop. The amp that blew them is a kenwood execelon 1200 watt. I went ahead and spent the extra money and purchased two solobarics and now the system bangs hard!!!!

7 of 9 found this helpful

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pitt bull

Rio Rancho NM

Overall
Durability
Value
Features
Design
Usability
best speaker

April 3, 2012

I just got this speaker in the other day and started to look at the spec on the sheet that had came with the speaker and i love it . I started building box that it recomend. I have never heard a truck sub sound like that. The sub had a very deep sound and it was not broken in yet I run the sub with a PPi2100. I recommend this speaker to people that have trucks and want to save some space . I thinking of putting three more of the sub in my truck so i can have four of the MFW-12.

6 of 8 found this helpful

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micheal

mauk, GA

Overall
Durability
Value
Features
Design
Usability
good

April 24, 2011

u need a big amp... very big . like 2500 rms big. power hungry subs. takes 1000 rms like its nothin!

7 of 10 found this helpful

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $37.85

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 $53.99

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 $64.87

Dynamat Sound Dampening Trunk Kit

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

Your Price $87.63

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

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

Your Price $18.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

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

Your Price $74.99

12 oz. Can of Adhesive Spray

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

Your Price $8.97

Gold Plated Dual Terminal Banana Plug Connector

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

Your Price $1.99

Universal 12" Subwoofer Grille

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

Your Price $19.95

Universal 12" Subwoofer Grille

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

Your Price $19.95

12" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $6.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 Kole Audio MFW-12 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Kole Audio MFW-12 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 Kole Audio MFW-12 Subwoofers

4 Channel Amp

4 Kole Audio MFW-12 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

MFW-12

UPC

709483011212

Weight

23.00lbs

Internal SKU

mfw12

Internal Product ID

7360

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: Kole Audio MFW-12