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Autotek M12D4

12" Dual 4 ohm Mean Machine Series Car Subwoofer

Discontinued
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This item has been discontinued

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Bass with a Touch of Color

We are excited to introduce Autoke's 2011 Mean Machine Car Subwoofer Series. The M12D4 is the next level in Autotek Car Audio and has been designed with not only power handling in mind but with also performance and presentation. With an impressive 1000 watts Max power rating and 500 RMS rating, this sub will produce all the bass you need. Apart from having a sturdy polypropylene dust cap for durability, the MM logo illuminates to really showcase the unique innovation that Autotek brings to the Mean Machine Series. The illuminated logo will make you the envy of the block. Equipped with a high excursion rubber surround and black chromed gasket the M12D4 is built to last.

  • 12" Dual 4 ohm Mean Machine Series Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 500 watts
  • Impedance: Dual 4 ohm
  • Black polypropylene cone with illumination
  • High excursion rubber surround
  • Designed specifically for sealed or ported enclosures
  • Black chrome plated trim ring
  • Blue illuminated Mean Machines logo on the cone
  • High temperature voice coil
  • Sensitivity: 84.7 dB
  • Top mount depth: 5-1/16"
  • Cut out diameter: 12-3/8"
  • Authorized Internet Dealer
  • 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.
Mean Machine (Autotek)
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.
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.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
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).
Not provided by manufacturer
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".
84.7 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 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.
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.
Polypropylene
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.
Rubber
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.

Ported / Vented
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.
1.00 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.
1.00 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.
1.25 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.
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.
1.25 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.
5-1/16"
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.
12-3/8"
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
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
67%
4 Star
8%
3 Star
0%
2 Star
8%
1 Star
17%

Average Attribution Rating

Durability
3.8
Value
4.2
Features
3.9
Design
4.3
Usability
3.8
JPoon

Coraopolis, PA

Overall
Durability
Value
Features
Design
Usability
Boom Boom Boom

February 12, 2012

I would recommend this sub woofer. Very powerful and great bang for the buck. Hits the low frequencies without drowning out the music.

2 of 2 found this helpful

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scuba

shelton ct

Overall
Durability
Value
Features
Design
Usability
great subs

March 16, 2011

i bought two of these and put them in a box made for two jack hammer subs and let me tell you the bass is nice and low but at the same time loud. i love how in my full size four door pontiac i could feel it in my seat like as if someone was giving me a back rub. i have them powered by an audio pipe 15001d amp at a little less then 1/4 of gain and these things make me happy for the price i paid which was i think $99 bucks. i have two kicker comps cvr 12s and they are great but for the price these has style and class and the blue led glow from the logo is always a crowd looker bottom line you want something that hits like a kicker cvr but dont have the money to pay then these are a great entry level sub for you enjoy

2 of 2 found this helpful

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matt

grand forks, nd

Overall
Durability
Value
Features
Design
Usability
Pretty darn good

April 19, 2013

I have one of these in a ported homemade box about 1.5-1.8 cu/ft, which is a little bit bigger than required. It hits pretty hard and has a good deep bass to it. I have it hooked to a Boston Acoustics gt2125 amp bridged and wired to 2 ohms. At first I had a little bit of a burning smell, but it has since gone away.

0 of 0 found this helpful

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Dhope205719

Chiefland FL

Overall
Durability
Value
Features
Design
Usability
Never again

October 11, 2012

Speakers are wired to 1 ohm and only last a couple months at best. Have already sent one back and already am getting ready to send them both back again. It'd have been more cost effective to have bought better subs. Learned my lesson. Never gonna buy this brand of sub again. Doesn't matter if the neon is glowing if they sound like garbage.

0 of 0 found this helpful

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douglas

Chiefland, FL

Overall
Durability
Value
Features
Design
Usability
Perfect

August 2, 2012

A pair of these with the autotek 2500D is the perfect match. I have two in a custom box and the blue neon makes it stand out more than the next guys. Great buy for the money

0 of 0 found this helpful

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steve!

Australia

Overall
Durability
Value
Features
Design
Usability
AWESOME SO IMPRESSED!!

April 26, 2012

I bought 2 of these subs as they were recommended to me by a friend over in the USA, and I was a bit skeptical because of the pricing, but let me say this, I have NEVER heard a sub so clear at thumping bass!!! I paid for an Option Audio subwoofer which is a brand in Australia, and it was 500W RMS, but that was $150, but the Autotek sub blows it out of the water! It doesn't drain out the lows, and it's still really powerful. I love it! I'd so recommend this; you won't be disappointed. The sound quality is amazing, and it's VERY LOUD! Thanks Autotek!

0 of 0 found this helpful

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Rangel

Phoenix, Az

Overall
Durability
Value
Features
Design
Usability
Ha

April 5, 2012

So, I have this in my Grand Marquis (land boat) and it hits hard, but I notice that with some songs, I have to turn the epicenter down or I get this burning smell, but other than that it's good for what you pay for. DUAL XHD7714->AUDIO CONTROL EPICENTER->FLI AMP-> (2) AUTOTEK M12D4

0 of 0 found this helpful

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peter

Angleton, TX

Overall
Durability
Value
Features
Design
Usability
Autotek M12D4

November 11, 2011

I have two of these with an old Autotek 1000 watt amp in an 05 Impala. These speakers hit hard and sound nice. These subs make my hood move like im poundin on it. These are great subs and the price is great, also the LED light up logo is a real kick at night time

0 of 0 found this helpful

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Danny

El Paso, TX

Overall
Durability
Value
Features
Design
Usability
Totally worth it

March 28, 2011

I've had this sub in my truck for about a week and its sitting behind my seat. I can really feel it and its a lot better sounding than I expected for the price. Its also very lightweight. The illumination is supposed to be wired separately to a 12v power wire and a ground. So youre in for some extra wiring if you want it to light up. Overall, its a great buy if you're building a budget system.

0 of 0 found this helpful

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lu

Springville, UT

Overall
Durability
Value
Features
Design
Usability
BANG FOR BUCK

February 12, 2011

These are nice subs for the price sound just as good as my old kicker comps did. Love the blu lettering. I would recommend these for someone who wants a okay system for okay price. power handling is right on got 1000 watt amp pushing them in ported enclosure.

0 of 0 found this helpful

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Kevin

Lufkin, Tx

Overall
Durability
Value
Features
Design
Usability
Do Not Believe the RMS Ratings...

March 7, 2013

I paired this amp with a Fusion PP-AM100010 D-Class Amplifier. Here are the stats: Frequency Response: 20Hz - 320Hz Subsonic Filter Bass Boost 0-12db Remote Bass Level Controller Included Protection: Thermal, Short Circuit, Output Short, DC Offset. RMS Power: 620w RMS x 1 @ 2ohm (Subwoofer wired to 2ohm) Max Power: 1000w With the amp at half gain and half boost, and my radio on 1/3 volume listening to Metallica "One", I heard a pop... before I could turn the radio off I smelled smoke and electrical burning. I immediately killed power to everything and pulled the box. It was a custom built (by me) sealed enclosure that was exactly 1.00 cubic feet with 2.5 inches of space between the back of the box and speaker, as required in the instructions, for the speaker to vent heat. When I pulled the speaker from the box it looked like a Grateful Dead concert inside the box... I couldn't believe that much smoke could come out of a speaker. The M12D4 is rated for 500w RMS and 1000w Max. It was getting about half of that rated power. It lasted halfway through the song. Very disappointed.

0 of 1 found this helpful

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Derek

wooster, OH

Overall
Durability
Value
Features
Design
Usability
Not true RMS

December 20, 2012

I had this sub for about 2 weeks. I had it powered by a RF p300-1 wired to 2 ohms. Even though that amp will do about twice as much as it says, i know i only had it putting out 300-400 rms and this sub fried so quick. This sub is probily only good for 250-300 rms. Not 500 like it says. Just because your amp says it does 500 doesnt mean it does. Get a true 500 watts and it will blow. The golden rule for car audio "You get what you pay for"

0 of 1 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 $34.99

12" Dual Hatchback Style Small Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Hatchback Style Sealed Enclosure w/ Premium Carpeted Finish

Your Price $68.95

Single 12" Sealed MDF Subwoofer Enclosure

CARB Compliant, 5/8" MDF Angled Sub Enclosure Lined w/ Polyfil.

Your Price $34.99

25 ft. of Streetwires 12 Gauge Speaker Cable

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

Your Price $44.95

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 $109.95

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

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

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 $12.99

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

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 Autotek M12D4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Autotek M12D4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Autotek M12D4 Subwoofers

Mono Amp

4 Channel Amp

4 Autotek M12D4 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 1 question and 1 answer
Hide answersShow all answers | Sort by
single sub wiring configuration?
A shopper on Aug 22, 2014
Best Answer: Hello,

The product page has a tab labeled "Wiring Guide" where you can see your options. Basically, you can wire in parallel down to 2ohms or in series up to 8ohms which is not practical.

http://www.youtube.com/watch?v=smw-6VRy5QY

http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=1&I=42#results
Reply · Report · Customer SStaff on Aug 23, 2014
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Product Summary

Manufacturer

Model Number

M12D4

UPC

806576217565

Weight

9.50lbs

Internal SKU

m12d4

Internal Product ID

33190

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: Autotek M12D4