Earthquake Sound DB-12 - Manual (Page 2)

EARTHQUAKE • DB SPECIFICATIONS
EARTHQUAKE SOUND • SUBWOOFER SPECIFICATION CHARTS 2
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 DB subwoofers are
our subwoofers and amplifiers
hearing
damage
E
DB or other Earthquake products sound
systems for every day use.
capable of generating
high sound pressure levels. You should exercise caution when
operating
. Long term exposures to
high levels of sound pressure will cause permanent
. Sound pressure levels exceeding 85dB can be
dangerous with constant exposure. arthquake Sound Corporation
does not assume liability for damages resulting from the direct use
of
, and urges users to play
at moderate listening levels
DB SINGLE VOICE COIL SUBWOOFER SPECIFICATIONS
DRIVER:
Recommended Power
DB-15 DB-10
350 WRMS
800 Watts MAX
DB-12
VAS 3 95.4 Lit / 3.367ft 3 30.5 Lit / 1.076ft 3 62.2 Lit / 2.195ft
Nominal Impedance 4-Ohm 4-Ohm 4-Ohm
Frequency Response 23Hz - 1.1k 26Hz - 1.3k 25Hz - 1.1k
Electrical “Q” (Qes) 1.08 0.76 0.93
Mechanical “Q” (Qms) 9.33 8.35 8.44
Total Speaker “Q” (Qts) 0.96 0.70 0.93
One way linear excursion 1 in. / 25.4 mm .75 in. / 19.05mm .75in. / 19.05mm
Efficiency (1W/1M) 91 dB SPL 87 dB SPL 89 dB SPL
BL 12.4TM 11.1TM 11.2TM
400 WRMS
1000 Watts MAX 450 WRMS
1200 Watts MAX
Specifications are subject to change without notice.