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Earthquake Sound has released their new and improved Magma15X 15" Dual 4 ohm subwoofer, which is animprovement on the older Magma series woofer. This woofer isone of the top woofers in the areas of sound quality, power,and accuracy. Its 700 watts RMS power handling rating will provide truly deep and impacting bass reproduction, giving awhole new perspective on what you consider loud and booming.The use of a light flat piston reduces distortion at higher excursion levels, while the Turbo Cooled Technology offers lower thermal outputs keeping the woofer running cooler, louder, and longer. The use of a non-pressed fiber cone and 1" Poly-ether draw surround provides longevity, faster response and a lighter mass for maximum excursion levels. It's not always easy taking an old subwoofer that dominated the competition and make it better, but Earthquake Sound have done just that with their Magma X series subwoofer.


  • 15" Dual 4 ohm Magma X Series Subwoofer
  • Power Handling:
    • Peak: 1500 watts
    • RMS: 700 watts
  • 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: 19.05 mm
  • Mounting depth: 8"
  • Cutout dimensions: 14"

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Subwoofer SeriesMagma (Earthquake)
Subwoofer Size15"
Peak Power Handling1500 watts
RMS Power Handling700 watts
Voice Coil(s)Dual
Impedance (Per Voice Coil)4 ohms
Sensitivity89 dB
Xmax (millimeters)19.05 mm
Subwoofer DesignRound / Circle
Main Cone ColorBlack
Woofer CompositionNon-Presses Fiber
Woofer SurroundPoly-ether
Subwoofer GrilleNo
Re-Cone Kit AvailableNo


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