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Earthquake Sound MAGMA12X / MAGMA12

1000W Peak (500W RMS) 12" Magma X Series Dual 4-Ohm Subwoofer

Product videos

• 1000W Peak
• 500W RMS
• Turbo Cooled Technology
• 3mm Non-Pressed Fiber Cone
• Poly-ether 1" Single Layer Draw Surround
• Inverted Reinforced Edge Dust Cap
• Perforated Back Plate

Learn more about the magma12x
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Product Highlights

• 1000W Peak
• 500W RMS
• Turbo Cooled Technology
• 3mm Non-Pressed Fiber Cone
• Poly-ether 1" Single Layer Draw Surround
• Inverted Reinforced Edge Dust Cap
• Perforated Back Plate


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Authorized dealer

General Features

  • 12" Magma X Series Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 500 watts
  • Recommended power range: 300 - 500 watts RMS
  • Impedance: Dual 4 ohm
  • Stiff non-pressed 3mm fiber cone for faster response and lighter mass
  • 1" Thick single layer Poly-ether draw surround for longevity and max excursion
  • Turbo Cooled Technology (TCT)
  • Inverted edge reinforced dust cap for lower cone distortion
  • OD Max spider for increased spider surface and linear movement
  • Perforated Back Plate (PBP that circulate cold air into the gap
  • 2" thick motor to assist long excursion
  • Light-mass flat piston for reduced distortion at high speeds
  • Xmax: 38.00 mm
  • Mounting depth: 6-3/4"
  • Cutout dimensions: 11-1/8"
  • Also found as: MAGMA12
  • Authorized Internet Dealer
  • 5-year Manufacturer's warranty

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Earthquake Sound MAGMA12X / MAGMA12 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Earthquake Sound MAGMA12X / MAGMA12 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Earthquake Sound MAGMA12X / MAGMA12 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Earthquake Sound MAGMA12X / MAGMA12 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details

Subwoofer Specifications
Magma Series
Subwoofer Size
Peak Power Handling
1000 watts
RMS Power Handling
500 watts
Voice Coil(s)
Impedance (Per Voice Coil)
4 ohms
83.7 dB
Xmax (millimeters)
38 mm
Subwoofer Design
Round / Circle
Main Cone Color
Woofer Composition
Non-Presses Fiber
Woofer Surround
Subwoofer Grille
Re-Cone Kit Available
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Minimum Sealed Box Volume
1.89 cubic feet
Maximum Sealed Box Volume
1.89 cubic feet
Minimum Ported Box Volume
2.75 cubic feet
Maximum Ported Box Volume
2.75 cubic feet
Top-Mount Depth (Mounting Depth)
Cutout Diameter
Shallow Mount Installation
Warranty and Return Policy
Parts Warranty Duration
5 years
Labor Warranty Duration
5 years
Warranty Provider

Item Details


Model Number:




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Product and How-to Videos

  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

Customer Ratings & Reviews

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Customer Reviews

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Earthquake indeed

I have a earthquake supernova home theater bass box. I purchased this woofer to replace the one that had been damaged. Thing is load, plays deep and shakes my house.

By Lost pirate on September 17, 2013


found this helpful.


I bought this sub to replace my Rockford Fosgate hx2 punch series 12" sub. One thing that I wanted everyone to know that is thinking about buying this sub is that it is actually a 1500 watt peak power sub and 600 rms. If you don't believe me look at the back of the magnet in the pictures. Overall this sub is great for the money and hits harder than any other sub iv heard.

By Matt on October 11, 2013


found this helpful.

excellent product

Excellent subwoofer.. It has ground shaking bass.. I will definitely refer a friend for the service and product

By big boi on August 13, 2014


found this helpful.

Better than I had hoped for.

I had a JL W3 V3 (SVC 4ohm) running in a ported box on a JL 600/1 amp and simply swapped this sub in its place. I wired this DVC 4ohm into 2ohms to pull 500-600 watts from the amp, which is powered by a secondary dedicated battery. Now I need Dynamat. It hits so hard that my car now sounds like a tin can with loose rocks in it. The box is smaller than it wants, but I like a tighter bass -- even though I listen to rap and electronic, mainly. Now that I know it hits so hard, I'm gonna build a sealed box for it and tighten it up even more. Make no mistake though, this is way tight in a ported box, just too loud and overpowering.

By Amillionin1 on November 24, 2014


found this helpful.

Poor mans w7 on a budget

I wanted a sub that had enough throw to get loud (while sounding good, hence sealed), and this really surprised me. I used a dbxi before and while it got surprisingly loud, it sounded tubby and sloppy. In goes the magma into a 1.4 ft^3 heavily stuffed box, sub is receiving 700 watts. I was disappointed with the sub when I first installed it, it had no low end AT ALL.

About a week and a half later, every time I got in the car it dropped lower and lower, really needs a break in. Now it drops as low as I was hoping a sub would in my car, and onced crossed over below 70hz, sounds really good doing it. Output is shocking in my hatchback, it wont need anymore than 700 watts. I can't emphasize how surprisingly good (this is coming from an sq guy) this sub sounds. Durability, on the other hand, is still up in the air. If you are looking for a "super sub" on an extremely low budget, this is a great choice, there aren't many sub's that are this pleasing to listen to that also have very high output for less than $200. Give these a shot and be pleasantly surprised.

By Tabs on March 1, 2016 Checkmark Icon Verified purchase


found this helpful.


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