Earthquake Sound 15X User Manual

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Introduction

Thank you for purchasing the Magma subwoofer – the world’s

• 6 back plate holes to create massive cooling in the gap

leading subwoofer in power, SPL and accuracy.

Upon its release, the Magma toppled DB drag records one by one

Back in 1995, Earthquake Sound Corporation led the industry in

like a bowling ball rolling through the lane. For over 12 years, the

making the world’s true extra long stroke subwoofer by

Magma reigns over the competitions in sound quality, power and

unleashing the Magma subwoofer line. The Magma introduces

accuracy. While Magma performance pushed the boundaries, the

many innovations to the audiophile community, as follows:

newly released Magma 15X ripped 'em apart.

• 1 super wide edge surround to allow LONG EXCURSIONS
• 1-1/4” spider mounting height to allow for 2.5” PEAK TO PEAK

MECHANICAL EXCURSIONS

• Stacked magnet with huge bump back plate to create high

Thank you,

excursion MOTOR

Joseph Sahyoun, President

• Light-mass flat piston to REDUCE CONE DISTORTION while

maintaining high speed

NOTE: While this booklet may provide you with the necessary tools to build a solid good sounding
enclosure for your subwoofer, Earthquake Sound recommends that you invest wisely and have our
professionally trained Earthquake dealers help you optimize your enclosure design and the rest of
your audio system.

Designs & Engineering Honors

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Poly-ether draw surround with thick single layer for longer life and max excursion

Edge reinforced inverted dust cap for lower cone distortion

3mm stiff non-pressed fiber cone for faster response and lighter mass

MAX OD spider for more spider area and more linear spring constant

Super thick motor to assist long excursion – 2” thick

PBP

(Perforated Back Plate) that circulate cold air into the gap

™

Patented TCT™ (Turbo Cooled Technology) forced cooled motor–
in with the cold air and out with the hot air