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Memphis 15-M3MOJO12

12" Dual 2 ohm M3 MOJO Series Subwoofer

Discontinued
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This item has been discontinued

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  • 12" Dual 2 Ohm M3 MOJO Series Subwoofer
  • Power Handling:
    • Peak: 2000 watts
    • RMS: 1000 watts
  • Impedance: Dual 2 ohm
  • Kevlar reinforced paper cone
  • High-density foam surround
  • Custom-cast vented "M" Basket
  • Bolt-through modular motor for easy repair
  • Orange finish
  • Dual 2 ohm voice coils
  • 3" Black anodized aluminum 4-layer voice coil former
  • 228oz. Magnet
  • Sensitivity: 90 dB
  • 1-year SonicElectronix.com warranty
*Good News* Memphis now offers a replacement cone kit to assist you if you burn or blow your M3 MOJO subwoofer during a competition or show-off period.

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.
2000 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.
1000 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.
Dual
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.
2 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".
90 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.
Black
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.
Kevlar Reinforced Pulp (Paper)
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.
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

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.
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.
8"
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.

No

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
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
5.0
Features
5.0
Design
4.7
Usability
5.0
jevelle420

ringtown pa

Overall
Durability
Value
Features
Design
Usability
Memphis MOJO 12 D2 Sub Memphis audio Mojo 12 dual 2 ohm Memphis car audio Nice

June 14, 2012

Just absolutely one of the best woofers ever made. Memphis all the way! These are so reliable. Handle loads of power all day. Destroy just about any other woofer out there. Definitely more efficient. Harder hitting, longer lasting than any other company. Started with one; now I have 4. Take the trophies home. Every time highest dB (to date 161.4). Never reconed, yet still sound like the day I bought 'em. Awesome. Never buy any other brand than Memphis.

0 of 0 found this helpful

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mixsignal91

Ludington, MI

Overall
Durability
Value
Features
Design
Usability
Loudest single sub I've ever heard

August 13, 2009

I have only 1 in my 89' caprice with a 4000w SPL amp pushing 1200w rms to it and this thing POUNDS...definetly a 5* sub! I would recommend to anyone looking for serious bang! The only con would be that it beats itself out of my box LOL

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Jay

Jonesboro, AR

Overall
Durability
Value
Features
Design
Usability
Sounds like four 15's

September 5, 2008

Just picked up two of these boys at a local store. Hooked up to a planet audio vx1400d. I could write a long review but none needws. They hit HARD simple as dat. I can be heard atleast a block or 2 away easily. Very good for the price but if you dont have the power to push them dont buy them.

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Stevem

Sunapee, NH

Overall
Durability
Value
Features
Design
Usability
outstanding!

July 14, 2008

These things are nasty! So efficient, so clean and hit so hard. No tickets, but thats also because I'm smart enough to hit the ATT button on my remote. I doubted these monsters at first, but I have seen them outhit Kickers, Infinity, MTX (yeah those 9500's people brag about). They don't blow...seem indestructible. Memphis has my vote for one of the best all around companies out there. No they aren't pretty, but they do their job and do it well.

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Noah

Effingham, IL

Overall
Durability
Value
Features
Design
Usability
almost too loud

July 10, 2008

a friend of mine has 2 of these in an 04 envoy and every time he shows up i can hear him from atleast 3/4 or even a full mile ive never measured it but its pretty ridiculous

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Ryan

Elk River, MN

Overall
Durability
Value
Features
Design
Usability

July 10, 2008

I have 2 of these in my 1995 Monte Carlo, and they pound unbelievably hard! If you are trying to lose your hearing in a matter of weeks, these are the subs for you. I have them hooked up through a power acoustik 3000db amp. running at about 1000 rms a piece! I recomend these to anyone that wants the loudest system in town.

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ROBERT

HOUSTON, TX

Overall
Durability
Value
Features
Design
Usability
Not for the weak hearted

February 8, 2008

I have 2 of these in my 2006 Dodge Charger and believe me they are not for the weak hearted. The compression these subs give off is crazy. I also have 2 PR.1000.1 pushing them and they truly are 1000w RMS. If you truly want more BANG for your buck then grab these and trust they will hear you coming minutes before you get there!

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Accessory Tools and Products

Accessories added

25 ft. of Streetwires 12 Gauge Speaker Cable

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

Your Price $44.95

Dynamat Sound Dampening Bulk Kit

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

Your Price $159.95

Stinger Sound Dampening Bulk Kit

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

Your Price $99.99

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 $14.99

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

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

1mm All Purpose Solder

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

Your Price $8.99

12" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $4.99

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

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 Memphis 15-M3MOJO12 Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

2 Memphis 15-M3MOJO12 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 Memphis 15-M3MOJO12 Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

4 Memphis 15-M3MOJO12 Subwoofers

2 Channel Amp

4 Channel Amp

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Product Summary

Manufacturer

Model Number

15-M3MOJO12

Weight

43.00lbs

Internal SKU

15m3mojo12

Internal Product ID

10346

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: Memphis 15-M3MOJO12