EarthQuake DBXI-10D, DBXI-12, DBXI-12D, DBXI-15, DBXI-15D Installation & Reference Manual

Earthquake Sound Corporation • 2727 McCone Avenue Hayward, CA 94545 • Ph: [phone] Fax [phone]

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

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 [phone]. 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.

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.