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Sound That Will Move You
LU-050107
DBXi Subwoofer
Installation
&
Reference Manual
DBXI-10
DBXI-10D
DBXI-12
DBXI-12D
DBXI-15
DBXI-15D
www.earthquakesound.com
Earthquake Sound Corporation • 2727 McCone Avenue Hayward, CA 94545 • Ph: (510) 732-1000 Fax (510) 732-1095
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EARTHQUAKE SOUND 5-YEAR LIMITED WARRANTY
Five (5) year limited warranty
Earthquake warrants the original purchaser that all Factory Sealed New Audio surround & dust cap, burnt speaker voice coil.
Products to be free from defects in material and workmanship under normal • Fading and or deterioration of speaker components & finish due to
and proper use for a period of five (5) years from the date of purchase (as shown improper exposure to elements.
on the original bill of sale with serial number affixed/written on it). The five (5) • Bent amplifier casing, damaged finish on the casing due to abuse, misuse
year warranty period is valid only if an authorized Earthquake dealer properly or improper use of cleaning material.
installs the product and the warranty registration card is properly filled out and • Burnt tracers on PCB.
sent to Earthquake Sound Corporation. If a non-authorized party installs the • Product/part damaged due to poor packaging or abusive shipping
product, a ninety (90) day warranty period will be applied. conditions.
(A) Five (5) years limited warranty plan coverage guidelines:
warranty claim will not be valid if the warranty registration card is not
• First year: Earthquake pays for labor, parts, and ground freight (only in US properly filled & returned to Earthquake with a copy of the sales invoice.
mainland, not including Alaska and Hawaii) (shipping to us is not covered).
• Second year: Earthquake pays for labor and parts only, customer must pay
freight both ways.
• Third, fourth & fifth year: Earthquake pays labor only. Customer must pay
for parts and freight both ways.
(B) Warning:
Products (sent for repair) that are tested by Earthquake technicians and
deemed to have no problem(s) will not be covered by the five (5) year limited
warranty. Customer will be charged a minimum of one (1) hour of labor (at the
ongoing rates) plus shipping charges back to customer.
(C) Earthquake will repair or replace - at our option - all defective
products/parts subject to the following provisions:
• Defective products/parts have not been altered or repaired by other than an
Earthquake factory-approved technician.
• Products/parts are not subjected to negligence, misuse, improper use or
accident, damaged by improper line voltage, used with incompatible products
or have its serial number or any part of it altered, defaced or removed, or have
been used in any way that is contrary to Earthquake's written instructions.
(D) Warranty Limitations:
Warranty does not cover products that have been modified or abused,
including but not limited to the following:
• Damages to speaker cabinet and cabinet finish due to misuse, abuse or
improper use of cleaning materials/methods.
• Bent speaker frame, broken speaker connectors, holes in speaker cone,
PRODUCT REGISTRATION
Your subwoofer(s) be registered by returning the Product Registration card attached to this manual or by visiting
www.earthquakesound.com/form_reg.htm. Please also retain the bill of sale, which represents proof of purchase
and helps expedite warranty issues.
Specifications are subject to change without notice.
• Subsequent damage to other products.
Warranty card is located on the last page of this manual.
A
(E) Service Request:
To receive product service, contact Earthquake service department at (510)
732-1000 and request an RMA number (Return Material Authorization). Items
shipped without a valid RMA number will be refused. Make sure you provide us
with your complete/correct shipping address, a valid phone number, and a brief
description of the problem you are experiencing with the product. In most cases,
our technicians might be able to resolve the problem over the phone; thus,
eliminating the need to ship the product.
(F) Shipping Instructions:
Product(s) must be packaged in its original protective box(es) to minimize
transport damage. Shipper claims regarding items damaged in transit must
be presented to carrier. Earthquake Sound Corporation reserves the right to
refuse improperly packed product. Original bill of sale must accompany
product returned for service. We encourage you to include with the package
a written description of the problem. Ship product to: Earthquake Sound
Corp. 2727 Mc Cone Avenue, Hayward, CA 94545. Ph (510) 732-1000. You
are responsible for the cost of shipping the product to Earthquake Sound
Corporation.
(G) Disputes Resolution:
All disputes - between clients and Earthquake Sound Corporation - resulting
from the five (5) years limited warranty policy must be resolved according to
the laws & regulations of the county of Alameda -California.
We recommended that you place or write
your serial number here for future
reference, if necessary.
SERIAL NUMBER
EARTHQUAKE SOUND • EARTHQUAKE SOUND 5-YEAR LIMITED WARRANTY2
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OHMS-LAW
How To Wire Your Earthquake Subwoofer In Parallel
Series formula:
PARALLEL WIRING
Ohms 2, 4, 6, 8
Where R= Total system impedance
If using SINGLE 2 OHM coils the total load would be 2.0 ohm
If using SINGLE 4 OHM coils the total load would be 4.0 ohm
If using SINGLE 6 OHM coils the total load would be 6.0 ohm
If using SINGLE 8 OHM coils the total load would be 8.0 ohm
If using SINGLE 2 OHM coils the total load would be 1.0 ohm
Ohms 2, 4, 6, 8
If using SINGLE 4 OHM coils the total load would be 2.0 ohm
If using SINGLE 6 OHM coils the total load would be 3.0 ohm
If using SINGLE 8 OHM coils the total load would be 4.0 ohm
R1+R2+R3+....
Rt=
Where Rt= Resistance seen by amplifier
Study sample diagram
below, then follow charts to
the left.
4-Ohm VC.
8-Ohm
4-Ohm VC.
Example for Dual-4 series
4-Ohm
Example for single-4
4-Ohm VC.
If using SINGLE 2 OHM coils the total load would be .66 ohm
If using SINGLE 4 OHM coils the total load would be 1.3 ohm
If using SINGLE 6 OHM coils the total load would be 2 ohm
If using SINGLE 8 OHM coils the total load would be 2.7 ohm
Ohms 2, 4, 6, 8
If using SINGLE 2 OHM coils the total load would be 0.5 ohm
If using SINGLE 4 OHM coils the total load would be 1.0 ohm
If using SINGLE 6 OHM coils the total load would be 1.5 ohm
If using SINGLE 8 OHM coils the total load would be 2 ohm
Ohms 2, 4, 6, 8
EARTHQUAKE SOUND • PARALLEL WIRING CONFIGURATIONS 3
4-Ohm VC.
Example Dual-4 Parallel
2-Ohm
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DBXI ENCLOSURE DESIGNS
10.80” 274.5mm
9.84” 250mm
DB I-
6.2 158.75mm 5”
X 10
DBXI-10D
6.417” 163mm
Dimensions shown are external .75” MDF.
DBXI-10/10D
Bass head design for competition
#1
Ported box Recommendation: 1.14-1.5cu.ft.
15”
12"
16.5”
DBXI-10/10D
13”
#2
12"
Port tuned design for deep bass
Ported box Recommendation: .8-1.25cu.ft.
12.5”
DBXI-10/10D
16”
Port
D : 4" iameter
Depth: 8.5”
12.91” 328mm
11.889” 302mm
6.417” 163mm
Sealed design for tight bass
#3
Sealed box Recommendation: .77-1.0cu.ft.
12.5”
12”
6.75 171 ” .45mm
DBXI-10/10D
DBXI-12
DBXI-12D
12”
PORT (2”x10.5”x13”)
Internal dimensions
DBXI-12/12D
Bass head design for competition
#1
Specifications are subject to change without notice.
Ported box Recommendation: 1.8-2.5cu.ft.
16.5”
14”
20.5”
DBXI-12/12D
16”
PORT (3”x12.5”x16”)
Internal dimensions
#2
14”
Port tuned design for deep bass
Ported box Recommendation: 1.5-1.75cu.ft.
19”
15”
DBXI-12/12D
9”
PORT (2”x12.5”x9”)
Internal dimensions
EARTHQUAKE SOUND • BX SUBWOOFER ENCLOSURE DESIGNSD I4
#3
14”
Sealed design for tight bass
Sealed box Recommendation: .9-1.25cu.ft.
14”
13”
DBXI-12/12D
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15”
13.75”
7”
6 1/2”
Dimensions shown are external .75” MDF.
DBXI-15D
DBXI-15
6 3 /8”
DBXI-15/15D
Bass head design for competition
#1
Ported box Recommendation: 3.5-4.2cu.ft.
22”
22.5”
16.5”
DBXI ENCLOSURE DESIGNS
Port tuned design for deep bass
#2
Ported box Recommendation: 2.2-2.5cu.ft.
23”
14”
9”
#3
Sealed design for tight bass
Sealed box Recommendation: 2.0-2.5cu.ft.
18”
16”
18”
DBXI-15D
PORT (3”x12.5”x16.5”)
Internal dimensions
Passive tuned design for deep bass small volume
18”
#4
Drone Tuned Box
VB = 2.5cu.ft.
FB = optimized with
SLAPS-15 passive
Specifications are subject to change without notice.
EARTHQUAKE SOUND • DBXI SUBWOOFER ENCLOSURE DESIGNS
DBXI-15D
PORT (2”x16.5”x9”)
Internal dimensions
18”
DBXI-15D
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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
operating . Long term exposures to high levels of sound pressure will cause permanent .
our subwoofers and amplifiers hearing damage
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
for every day use.
capable of generating high sound pressure levels. You should exercise caution when
E
DBXI or other Earthquake products sound systems
DBXI DUAL & VOICE COIL SUBWOOFER SPECIFICATIONS
DRIVER:
Free Air Resonance (Fs)
Electrical “Q” (Qes)
Mechanical “Q” (Qms)
Total Speaker “Q” (Qts)
Xmax
Efficiency (1W/1M)
REVC
BL
VAS
Nominal Impedance
DBXI-10D
28 Hz
0.497
8.458
3" / mm 76.2
17.6TM 17.6TM 23.7TM
21.9 Lit / .773 ft
4-Ohm
3
27 Hz
0.497 0.45
8.458
0.5 .5
3" / 76.2mm
85 dB SPL 87 dB SPL
21.9 Lit / .773 ft
Dual 4-Ohm
DBXI-12 DB I-15XDBXI-10
25 Hz 21 Hz
0.45
4.70
.5
3.5" / 88.9mm 3.5" / 88.9mm
87 dB SPL 88 dB SPL 85 dB SPL
4.8 Ohm
23.7TM
3
46.4 Lit / 1.639 ft
4-Ohm
3
DBXI-12D
24 Hz
4.70
3.5" / 88.9mm
46.4 Lit / 1.639 ft
Dual 4-Ohm
1.13
5.98
.450.52
4.0 Ohm5.2 Ohm 5.2 Ohm 4.8 Ohm
26.8TM
3
91.1
Lit / 3.217 ft
4-Ohm
DB I-15DX
20 Hz
1.14
5.99
.45
3.5" / 88.9mm
88 dB SPL
4.0 Ohm
26.8TM
3
91.1
Lit / 3.217 ft
Dual 4-Ohm
3
Recommended Power
400 WRMS
1000 Watts MAX
400 WRMS
1000 Watts MAX
500 WRMS
1500 Watts MAX
500 WRMS
1500 Watts MAX
EARTHQUAKE SOUND • SUBWOOFER SPECIFICATION CHARTS6
750 WRMS
2000 Watts MAX
750 WRMS
2000 Watts MAX
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CAUTION: Earthquake's DBXI subwoofers are
operating . Long term exposures to high levels of sound pressure will cause permanent .
our subwoofers and amplifiers hearing damage
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
for every day use.
capable of generating high sound pressure levels. You should exercise caution when
E
DBXI or other Earthquake products sound systems
EARTHQUAKE SOUND CORPORATION 7
Page 8
Sound That Will Move You
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