Earthquake, DBXI
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.
CAUTION: Earthquake's DBXI 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 DBXI or other Earthquake products , and urges users to play sound systems at moderate listening levels for every day use.
DBXI DUAL & VOICE COIL SUBWOOFER SPECIFICATIONS |
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Free Air Resonance (Fs) | 28 Hz | 27 Hz | 25 Hz | 24 Hz | 21 Hz | 20 Hz |
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Electrical “Q” (Qes) | 0.497 | 0.497 | 0.45 | 0.45 | 1.13 | 1.14 |
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Mechanical “Q” (Qms) | 8.458 | 8.458 | 4.70 | 4.70 | 5.98 | 5.99 |
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Total Speaker “Q” (Qts) | 0.52 | 0.5 | .5 | .5 | .45 | .45 |
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Xmax | 3" / 76.2mm | 3" / 76.2mm | 3.5" / 88.9mm | 3.5" / 88.9mm | 3.5" / 88.9mm | 3.5" / 88.9mm |
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Efficiency (1W/1M) | 85 dB SPL | 85 dB SPL | 87 dB SPL | 87 dB SPL | 88 dB SPL | 88 dB SPL |
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REVC | 5.2 Ohm | 5.2 Ohm | 4.8 Ohm | 4.8 Ohm | 4.0 Ohm | 4.0 Ohm |
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BL | 17.6TM | 17.6TM | 23.7TM | 23.7TM | 26.8TM | 26.8TM |
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VAS | 21.9 Lit / .773 ft3 | 21.9 Lit / .773 ft3 | 46.4 Lit / 1.639 ft3 | 46.4 Lit / 1.639 ft3 | 91.1 Lit / 3.217 ft3 | 91.1 Lit / 3.217 ft3 |
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Nominal Impedance | Dual | Dual | Dual | |||
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Recommended Power | 400 WRMS | 400 WRMS | 500 WRMS | 500 WRMS | 750 WRMS | 750 WRMS |
| 1000 Watts MAX | 1000 Watts MAX | 1500 Watts MAX | 1500 Watts MAX | 2000 Watts MAX | 2000 Watts MAX |
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6 | EARTHQUAKE SOUND • SUBWOOFER SPECIFICATION CHARTS |
