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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
st
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