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Earthquake Sound Corporation • 2727 McCone Avenue Hayward, CA 94545 • Ph: (510) 732-1000 Fax (510) 732-1095
www.earthquakesound.com
Sound That Will Move YouSound That Will Move You
DBXi Subwoofer
Installation
&
Reference Manual
DBXi Subwoofer
DBXI-10
DBXI-10D
DBXI-12
DBXI-12D
DBXI-15
DBXI-15D
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Specifications are subject to change without notice.
EARTHQUAKE SOUND 5-YEAR LIMITED WARRANTY
EARTHQUAKE SOUND • EARTHQUAKE SOUND 5-YEAR LIMITED WARRANTY2
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.
• Subsequent damage to other products.
(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.
A
mainland, not including Alaska and Hawaii) (shipping to us is not covered). Warranty card is located on the last page of this manual.
• Second year: Earthquake pays for labor and parts only, customer must pay
(E) Service Request:
freight both ways.
• Third, fourth & fifth year: Earthquake pays labor only. Customer must pay
To receive product service, contact Earthquake service department at (510)
for parts and freight both ways.
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
(B) Warning:
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,
Products (sent for repair) that are tested by Earthquake technicians and
our technicians might be able to resolve the problem over the phone; thus,
deemed to have no problem(s) will not be covered by the five (5) year limited
eliminating the need to ship the product.
warranty. Customer will be charged a minimum of one (1) hour of labor (at the
ongoing rates) plus shipping charges back to customer.
(F) Shipping Instructions:
(C) Earthquake will repair or replace - at our option - all defective
Product(s) must be packaged in its original protective box(es) to minimize
products/parts subject to the following provisions:
transport damage. Shipper claims regarding items damaged in transit must
be presented to carrier. Earthquake Sound Corporation reserves the right to
• Defective products/parts have not been altered or repaired by other than an
refuse improperly packed product. Original bill of sale must accompany
Earthquake factory-approved technician.
product returned for service. We encourage you to include with the package
• Products/parts are not subjected to negligence, misuse, improper use or
a written description of the problem. Ship product to: Earthquake Sound
accident, damaged by improper line voltage, used with incompatible products
Corp. 2727 Mc Cone Avenue, Hayward, CA 94545. Ph (510) 732-1000. You
or have its serial number or any part of it altered, defaced or removed, or have
are responsible for the cost of shipping the product to Earthquake Sound
been used in any way that is contrary to Earthquake's written instructions.
Corporation.
(D) Warranty Limitations:
(G) Disputes Resolution:
Warranty does not cover products that have been modified or abused,
All disputes - between clients and Earthquake Sound Corporation - resulting
including but not limited to the following:
from the five (5) years limited warranty policy must be resolved according to
• Damages to speaker cabinet and cabinet finish due to misuse, abuse or
the laws & regulations of the county of Alameda -California.
improper use of cleaning materials/methods.
• Bent speaker frame, broken speaker connectors, holes in speaker cone,
Five (5) year limited warranty
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.
SERIAL NUMBER
We recommended that you place or write
your serial number here for future
reference, if necessary.
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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
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
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
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-LAW
PARALLEL WIRING
Ohms 2, 4, 6, 8
Ohms 2, 4, 6, 8
Ohms 2, 4, 6, 8
Ohms 2, 4, 6, 8
How To Wire Your Earthquake Subwoofer In Parallel
EARTHQUAKE SOUND • PARALLEL WIRING CONFIGURATIONS 3
Where R= Total system impedance
Rt=
R1+R2+R3+....
Where Rt= Resistance seen by amplifier
Series formula:
Example for Dual-4 series
8-Ohm
4-Ohm VC.
4-Ohm VC.
Example for single-4
4-Ohm
Example Dual-4 Parallel
4-Ohm VC.
4-Ohm VC.
2-Ohm
Study sample diagram
below, then follow charts to
the left.
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Specifications are subject to change without notice.
DBXI ENCLOSURE DESIGNS
EARTHQUAKE SOUND • DBXI SUBWOOFER ENCLOSURE DESIGNS4
6.417” 163mm
10.80” 274.5mm
9.84” 250mm
6.25” 158.75mm
DBXI-10
DBXI-10D
6.417” 163mm
12.91” 328mm
11.889” 302mm
6.75” 171.45mm
DBXI-12
DBXI-12D
15”
12"
16.5”
13”
DBXI-10/10D
#1
Bass head design for competition
Ported box Recommendation: 1.14-1.5cu.ft.
PORT (2”x10.5”x13”)
Internal dimensions
#3
Sealed design for tight bass
Sealed box Recommendation: .77-1.0cu.ft.
12”
12”
12.5”
DBXI-10/10D
#1
Bass head design for competition
Ported box Recommendation: 1.8-2.5cu.ft.
16.5”
14”
20.5”
16”
DBXI-12/12D
PORT (3”x12.5”x16”)
Internal dimensions
#3
Sealed design for tight bass
Sealed box Recommendation: .9-1.25cu.ft.
14”
14”
13”
DBXI-12/12D
#2
Port tuned design for deep bass
Ported box Recommendation: 1.5-1.75cu.ft.
19”
14”
15”
9”
DBXI-12/12D
PORT (2”x12.5”x9”)
Internal dimensions
#2
Port tuned design for deep bass
Ported box Recommendation: .8-1.25cu.ft.
16”
12"
12.5”
DBXI-10/10D
Port
Diameter: 4"
Depth: 8.5”
Dimensions shown are external .75” MDF.
DBXI-12/12D
DBXI-10/10D
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VB = 2.5cu.ft.
FB = optimized with
SLAPS-15 passive
Drone Tuned Box
#4
Passive tuned design for deep bass small volume
Specifications are subject to change without notice.
DBXI ENCLOSURE DESIGNS
EARTHQUAKE SOUND • DBXI SUBWOOFER ENCLOSURE DESIGNS
Dimensions shown are external .75” MDF.
5
6 1/2”
15”
13.75”
6 3/8”
7”
DBXI-15D
#1
Bass head design for competition
Ported box Recommendation: 3.5-4.2cu.ft.
22”
18”
22.5”
16.5”
DBXI-15D
PORT (3”x12.5”x16.5”)
Internal dimensions
#3
Sealed design for tight bass
Sealed box Recommendation: 2.0-2.5cu.ft.
18”
18”
16”
DBXI-15D
#2
Port tuned design for deep bass
Ported box Recommendation: 2.2-2.5cu.ft.
23”
18”
14”
9”
DBXI-15D
PORT (2”x16.5”x9”)
Internal dimensions
DBXI-15/15D
DBXI-15
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Earthquake, DBXI
EARTHQUAKE SOUND • SUBWOOFER SPECIFICATION CHARTS6
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.
DBXI DUAL & VOICE COIL SUBWOOFER SPECIFICATIONS
DRIVER:
Recommended Power
CAUTION: Earthquake's DBXI subwoofers are
our subwoofers and amplifiers hearing damage
E
DBXI 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
DBXI-12 DBXI-15DBXI-10
400 WRMS
1000 Watts MAX
DBXI-10D
VAS
3
46.4 Lit / 1.639 ft
91.1
3
Lit / 3.217 ft
3
21.9 Lit / .773 ft
3
21.9 Lit / .773 ft
DBXI-12D
3
46.4 Lit / 1.639 ft
Nominal Impedance
4-Ohm
4-Ohm
4-Ohm
Dual 4-Ohm
Dual 4-Ohm
Free Air Resonance (Fs)
25 Hz 21 Hz
28 Hz
27 Hz
24 Hz
Electrical “Q” (Qes)
0.45
1.13
0.497
0.497 0.45
Mechanical “Q” (Qms)
4.70
5.98
8.458
8.458
4.70
Total Speaker “Q” (Qts)
.5
.450.52
0.5 .5
Xmax
3.5" / 88.9mm 3.5" 88.9 / mm
3" / mm 76.2
3" / mm76.2
3.5" / mm88.9
Efficiency (1W/1M)
87 dB SPL 88 dB SPL 85 dB SPL
85 dB SPL 87 dB SPL
REVC
4.8 Ohm
4.0 Ohm5.2 Ohm 5.2 Ohm 4.8 Ohm
BL
19.6TM
26.8TM
17.6TM 17.6TM 19.6TM
400 WRMS
1000 Watts MAX
500 WRMS
1500 Watts MAX
500 WRMS
1500 Watts MAX
750 WRMS
2000 Watts MAX
DBXI-15D
91.1
3
Lit / 3.217 ft
Dual 4-Ohm
20 Hz
1.14
5.99
.45
3.5" 88.9 / mm
88 dB SPL
4.0 Ohm
26.8TM
750 WRMS
2000 Watts MAX
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EARTHQUAKE SOUND CORPORATION 7
CAUTION: Earthquake's DBXI subwoofers are
our subwoofers and amplifiers hearing damage
E
DBXI 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
Page 8
Sound That Will Move YouSound That Will Move You
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