EARTHQUAKE • DB SPECIFICATIONS
Dear Valued Customer,
Earthquake Sound Corporation, located in Hayward California at the heart of the San Francisco Bay Area; specializes in manufacturing high end car audio products ranging from the smallest titanium tweeter to the world’s largest amplifier. In its dedication to excellence, Earthquake has maintained extensive programs in research and development to provide you with the highest quality mobile audio products.
This owners manual is designed to better acquaint you with Earthquake products and to guide you through all phases of system design and application. It is imperative that you read this manual in its entirety. Earthquake technicians and staff are looking forward to answering any questions you might have.
DB SINGLE VOICE COIL SUBWOOFER SPECIFICATIONS
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Frequency Response | 26Hz - 1.3k | 25Hz - 1.1k | 23Hz - 1.1k | |
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Electrical “Q” (Qes) | 0.76 | 0.93 | 1.08 | |
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Mechanical “Q” (Qms) | 8.35 | 8.44 | 9.33 | |
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Total Speaker “Q” (Qts) | 0.70 | 0.93 | 0.96 | |
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One way linear excursion | .75 in. / 19.05mm | .75in. / 19.05mm | 1 in. / 25.4 mm | |
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Efficiency (1W/1M) | 87 dB SPL | 89 dB SPL | 91 dB SPL | |
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BL | 11.1TM | 11.2TM | 12.4TM | |
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VAS | 30.5 Lit / 1.076ft3 | 62.2 Lit / 2.195ft3 | 95.4 Lit / 3.367ft3 | |
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Nominal Impedance | ||||
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Recommended Power | 350 WRMS | 400 WRMS | 450 WRMS | |
800 Watts MAX | 1000 Watts MAX | 1200 Watts MAX | ||
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CAUTION: Earthquake's DB subwoofers are capable of generating high sound pressure levels. You should exercise caution when operating our subwoofers and amplifiers. Long term exposures to high levels of sound pressure will cause permanent hearing damage. Sound pressure levels exceeding 85dB can be dangerous with constant exposure. Earthquake Sound Corporation does not assume liability for damages resulting from the direct use of DB or other Earthquake products , and urges users to play sound systems at moderate listening levels for every day use.
Specifications are subject to change without notice.
2 | EARTHQUAKE SOUND • SUBWOOFER SPECIFICATION CHARTS |
