EarthQuake XJ-1000FR User manual

XJ-1000FR
USER MANUAL
P R O
PC & MAC Compatible
2 CHANNELS / 1000 WATTS /
HIGH EFFICIENCY / CLASS “J” /
FULL RANGE AMPLIFIER
Earthquake Sound Corporation.
www.earthquakesound.com
2727 McCone Avenue, Hayward CA, 94545
Phone: [phone] / Fax: [phone]

A Thank You Note.
© 2012 Earthquake Sound Corporation. All rights reserved.
This document should not be construed as a commitment on the part of Earthquake Sound Corporation.
The information is subject to change without notice. Earthquake Sound Corporation assumes no
responsibility for errors that may appear within this document.
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P R O
Thank you for purchasing this XJ-1000FR amplifier. Designed to exceed all your expectations for audio amplification, the XJ-
1000FR is a ruggedly constructed high quality professional amplifier equally suited for home or professional use. It is ideal for
high fidelity full range stereo reproduction, heavy duty sub-woofer application, powerhouse for multiple tactile transducers,
and a variety of other home and studio applications.
Keywords describing the XJ-1000FR are: flexibility, power, control, and adaptability. It is the perfect amplifier for the advanced
enthusiast who wants full control and ability to adjust all parameters of operation. Similarly, it can easily be used by the novice
user who wants large amounts of power from a compact and efficient amplifier. The XJ-1000FR is passively cooled for silent
operation. The brute force of the XJ-1000FR springs from the class “J” circuitry. Earthquake patented Class “J” technology
manifests as a “quantum leap” in amplifier technology.
The revolutionary Class “J” is able to combine high efficiency (99%) with an extraordinary bass control. Class “J” is an evolution
of PWM technology, it combines advanced multi-level digital feedback with an intelligent controller (DCDC). It modulates the
power supply voltage and output switching frequency in real time based on the frequency and amplitude of the input signal.
This added level of intelligence results in several obvious advantages: increased thermal headroom through the amplifier's
optimum energy use, dramatically improved bass response and dynamic power capabilities. This results in a harder more solid
audible impact that adds a drive to the sound normally experienced only at live concerts. We invite you to experience the
immense power and superior sound quality of the XJ-1000FR
Table Of Contents
Programing EQ Using PC / Specifications. . . . . . . . . . . . . . . .
15
Memory Programing Using PC. . . . . . . . . . . . . . . . . . . . . . . .
14
Programing EQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
Programing functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
LCD Explained . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
7
Front / Rear Panel / Remote Control . . . . . . . . . . . . . . . . . . .
6
4
A word from the president. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . 5
3
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Programing Using PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
Software Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
Trouble Shooting & Maintenance. . . . . . . . . . . . . . . . . . . . . .
The XJ-1000FR is capable of generating high
sound pressure levels. You should exercise
caution when operating this amplifier system.
Long term exposures to high levels of sound pressure will cause
permanent damage to your hearing. Sound pressure levels
exceeding 85dB can be dangerous with constant exposure. Set
your audio system to a comfortable loudness level. Earthquake
Sound Corporation does not assume liability for damages
resulting from the direct use of the XJ-1000FR , and urges users
to play the XJ-1000FR at moderate listening levels.
THE CHART (ON THE SIDE) SHOWS THE U.S. GOVERNMENTS
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA)
REGULATIONS WHICH WERE IN EFFECT AT THE TIME OF THIS
PUBLICATION FOR PERMISSIBLE NOISE EXPOSURE,
PER 29CFR1910.95, TABLE G-16.
97
10 0
10 2
10 5
11 0
11 5
3
2
1 - 1 1/ 2
1
1/ 2
1/ 4 o r l ess
S O U N D L E V E L
DBA
90
92
95
8
6
4
D U R AT I O N
I N H O U R S
CAUTION:
Earthquake Sound Corporation
2727 McCone Avenue
Hayward, CA 94545
Tel: [phone]
Fax: [phone]
Customer Support
[email protected]
Tel: [phone]
Fax: [phone]
Amplifier Package Includes:
- One (1) XJ-1000FR Amplifier
- One (1) Remote Control
- One (1) Power Cable
- One (1) Set Rack Mounting Ears
With Screws.
- One (1) CD: User Manual / Software
application

Warranty Information
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XJ-1000 FR
Product Registration
This XJ-1000FR Power Amp can be registered by returning the Product Registration card
attached to this manual. Please also retain the sales receipt which represents proof of
purchase and helps expedite warranty issues.
Five (5) years limited warranty:
Warranty does not cover products that have been modified or
Earthquake warrants the original purchaser that all Factory abused, including but not limited to the following:
!
Sealed New Audio Products to be free from defects in material Damages to cabinet/casing finish due to misuse, abuse or
and workmanship under normal and proper use for a period of five improper use of cleaning materials/methods.
!
(5) years from the date of purchase (as shown on the original sales Fading and or deterioration of speaker components & finish
receipt with serial number affixed/written on it). The five (5) year due to improper exposure to elements.
!
warranty period is valid only if an authorized Earthquake dealer Bent amplifier casing, damaged finish on the casing due to
properly installs the product and the warranty registration card is abuse, misuse or improper use of cleaning material.
!
properly filled out and sent to Earthquake Sound Corporation. If a Burnt tracers on PCB.
!
non-authorized party installs the product, a ninety (90) day Product/part damaged due to poor packaging or abusive
warranty period will be applied. shipping 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 properly filled & returned to Earthquake with a
!First year: Earthquake pays for labor, parts, and ground Acopy of the sales invoice. Warranty card is located on the
freight (only in US mainland, not including Alaska and last page of this manual.
Hawaii) (shipping to us is not covered).
!Second, third, fourth & fifth year: Earthquake pays labor
only. Customer must pay for parts and freight both ways. (E) Service Request:
To receive product service, contact Earthquake service
department at [phone] and request an RMA number
(B) Caution: (Return Material Authorization). Items shipped without a valid
RMA number will be refused. Make sure you provide us with your
Your Earthquake amplifier is an integral part of a complete system complete/correct shipping address, a valid phone number, and a
with multiple components. There is a chance that the problem you brief description of the problem you are experiencing with the
are experiencing is originating from another component. We urge product. In most cases, our technicians might be able to resolve
to contact us (1-800-576-7944) before sending the unit for service; the problem over the phone; thus, eliminating the need to ship the
our technicians might be able to resolve the problem over the product.
phone; thus, eliminating the need to ship the product.
Products (sent for repair) that are tested by Earthquake (F) Shipping Instructions:
technicians and deemed to have no problem(s) will not be covered
by the five (5) year limited warranty. Customer will be charged a Product(s) must be packaged in its original protective box(es) to
minimum of one (1) hour of labor (at the ongoing rates) plus minimize transport damage. Shipper claims regarding items
shipping charges back to customer - regardless of the product damaged in transit must be presented to carrier. Earthquake
date of purchase. Sound Corporation reserves the right to refuse improperly packed
product. Original sales receipt must accompany product returned
Each product sent for repair must be packaged in its original for service. We encourage you to include with the package a
packaging. Otherwise, there will be repackaging charge in written description of the problem. Ship product to: Earthquake
addition to labor, parts and shipping charges. Sound Corp. 2727 Mc Cone Avenue, Hayward, CA 94545. Ph
[phone]. You are responsible for the cost of shipping the
product to Earthquake Sound Corporation.
(C) Earthquake will repair or replace - at our option - all
defective products/parts subject to the following provisions: (G) Disputes Resolution:
!Defective products/parts have not been altered or repaired All disputes - between clients and Earthquake Sound Corporation
by other than an Earthquake factory-approved technician. - resulting from the five (5) years limited warranty policy must be
!Products/parts are not subjected to negligence, misuse, resolved according to the laws & regulations of the county of
improper use or accident, damaged by improper line Alameda -California.
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:

From our hands to your ears... Thank you.
Joseph J. Sahyoun;
Your Brother In Sound
President & Chief Engineer
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A Word From The President
First of all, thank you for purchasing this XJ-1000FR power real innovations and real technology invented right here in
amplifier. The multi-patented series of XJ power amplifiers the USA, by hardworking and dedicated engineers.
employs some of the most advanced GREEN
technologies ever made.
The XJ-1000FR is constructed upon a novel PWM power
supply that delivers DC power at an incredible 99.5%
efficiency. The DC power is used to feed the output
The XJ amplifiers deliver more sound using less power - in amplifier with the necessary energy to reproduce clear,
line with today's energy conservation trend. Right of the powerful output.
get go, you can see that the XJ amplifiers are light, small
and have no noisy fans. It converts with record efficiency
power from the “wall outlet” to “music in your ears”. The power supply uses more than 6 layers of copper-clad
PCB to control and fully ground high frequency radiations.
The output circuitry employs its own PWM stage to deliver
clean accurate sound. A sound quality so good that it rivals
For years, there have been many attempts to make high the best of class AB designs
efficiency amplifiers using Pulse Width Modulated (PWM)
output; PWM amplifiers are also known as class “D”
amplifiers - referred to as digital amplifiers. For the most The input audio stage employs a digital signal processor
part, these technologies suffered from several issues: (DSP) to shape and control the signal without
compromising signal / noise ratio or separation. The DSP
1- Could not handle full range signals, so these amplifiers also controls the sophisticated DCDC (dynamic control
worked only for subwoofer applications. drive circuitry) that regulates the DC power so it is just “a
notch”above the need of the amplifier - based on the audio
2- some class “D” were designed to operate in full range, signal while maintaining low THD and noise.
this is common in the pro-sound market where the high
power applications masked the high level of distortion
produced by the amplifier. For home audio, the high speed The XJ FR line is designed with an advanced multi-path
switching PWM radiated out of the amplifier and effected digital feedback system that connects and optimize the
other equipments surrounding it. audio analog input, the audio PWM output, and the PWM
power supply in an “on time” balanced relationship.
So how did we do it?
I hope that you will enjoy this amplifier, we worked hard to
Earthquake Sound Corporation, an engineering driven perfect it. We will value any feedback you might have on its
company, lead for over 26 years the field of audio performance and design.
innovations. A plethora of audio patents is proof that we
constantly stay at the cutting edge of technology.
Thank you for choosing Earthquake.
Leading the way means that we can not take the “easy
route” of using off the shelf hybrid chips: generic “me too”
solutions or other compromises. We blazed the trail with

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Safety First
XJ-1000 FR
Important Safety Instructions
1) Read these instructions in their entirety. 11) Only use attachments & accessories specified by the
manufacturer.
2) Store this manual and packaging in a safe place.
12) Use only with a cart, stand or table that can support the
3) Heed all warnings. product weight. Use caution when
moving or positioning your rack or
4) Follow instructions (do not take short cuts). cart so that it will not tip over, which
may cause serious injury to you or
5) Do not use this apparatus near water. your products.
6) Clean only with a dry cloth. 13) Unplug this apparatus during a lightning storm or when
unused for long period of time.
7) Do not block any ventilation openings. Install in
accordance with the manufacturers instructions. 14) Refer all servicing to qualified service personal.
Servicing is required when the apparatus has been
8) Do not install near any heat sources such as radiators, damaged in any way such as: power-supply cord or
heat registers, stoves, or other apparatuses that plug is damaged, liquid has been spilled or objects
produce heat. have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate
9) Do not defeat the safety purpose of the polarized or n o r m a l l y , o r h a s b e e n d r o p p e d .
grounding-type plug. A polarized plug has two blades
with one wider that the other. A grounding-type plug 15) To reduce the risk of fire or electric shock, do not expose
has two blades and a third grounding prong. The wide this apparatus to rain or moisture.
blade or the third prong is provided for your safety. If
the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.
10) Protect the power cord from being walked on or
pinched, particularly at plugs, convenience
receptacles, and the pint where they exit from the
apparatus.
The following symbols are used in this document:
Appears on the component to indicate the presence of uninsulated, dangerous voltage inside the enclosure –
voltage that may be sufficient to constitute a risk of shock.
Calls attention to a procedure, practice, condition or the like that, if not correctly performed or adhered to, could result
in injury or death.
Calls attention to a procedure, practice, condition or the like that, if not correctly performed or adhered to, could result
in damage to or destruction of part or all of the product.
Note: Calls attention to information that is essential to highlight.

Front Panel
Rear Panel
1267
14
13 13
1211
10
8
9 9 15
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Front / Rear Panels
XJ-1000 FR
ON/OFF control
Function operation
keys
Mute control
Preset EQ
mode Select
Directly back to the
IR CONTROL: NEC PROTOCOL
CUSTOMER CODE: 00HFFH
main screen
Store hot key
Recall hot key
Remote Control
8
1- Power Switch: turns amplifier ON / OFF. Amplifier must be ON for the 12V
trigger and the music auto sensing modes / functions to operate.
2- Remote Eye: receives remote control signal.
3- Potect LED: “RED” color indicates that amplifier is in protection mode (short
speaker wire or other reasons. Turn OFF the amplifier immediately).
4- Clip LED’s (CH-A & CH-B): “RED” color indicates that the input signal on
the channel/s (A or B) is clipped (reduce volume on the clipped channel).
5- LCD Display Module: shows the amplifier status, menus and settings.
6- Button Switches: represent the functions keys.
7- Encoder Switch: controls the operation of the functions.
8- Left / Right RCA Inputs: feed line-level stereo (left / right) signals into the
amplifier. NOTE: either left or right RCA jacks can be used to feed a mono
input.
9- Left / Right XLR Balanced Inputs: feed balanced line-level stereo
(left/right) signals into the amplifier. NOTE: either left or right XLR jacks can be
used to feed a mono input.
10- Stereo / Bridged Switch: use this control / function when running the
amplifier in bridge or in stereo mode only.
11- External Trigger Input: powers up / triggers ON the amplifier from other
devices such as processors, receivers or any device with 12 Volts trigger
output.
12- USB Port: for operating the amplifier and / or uploading new firmware.
13- Left / Right Speaker Output: for speaker connection (stereo mode or
bridged mode).
14- 110V / 220V AC Voltage Selector: allows the amplifier to operate on 110V-
120V 60Hz and on 220V-240V 50Hz AC.
15- Power Cable Connector: connects amplifier to power source (rated 15
amperes).
CLIPPROTECT
CH-B CH-A
3 4 5

Output level meter
Lock Enable
Bridge On
Filter On
Subsonic On
Externa l Trigger Enable
Unmuted Muted
EQ mode
XJ-1000FR Boot screen
XJ-1000FR Main screen
Volume Control
Explanation of symbols on screen
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LCD Display Functions
XJ-1000 FR
XJ-1000FR
Press remote control “UP / DOWN” keys to change
functions. Press encoder “ENTER” to change functions.
The LCD display shows the status of DSP settings and the
output level (volume level).
This procedure takes approximately 3 seconds during which
the model number and company name are displayed.
Transition to main screen is carried automatically.
Press remote control “LEFT / RIGHT” keys or press encoder
“LEFT / RIGHT” to change the settings. Press “ENTER” to save.
“VOLUME” control is available from main screen. Press remote
control “LEFT / RIGHT” keys or press encoder “LEFT / RIGHT” to
change the volume level (from -80dB to 0 dB). Equal volume level
should be set (recommended) between both main speakers.

When the selection is complete/set, the option in the main screen will display the corresponding icon.
LPF (low pass) & HPF (high pass) Filters Control
Subsonic = OFF
Filter = OFF Filter = Low Pass (LPF) Filter = High Pass (HPF)
Subsonic Filter Control
(50Hz~4000Hz) (50Hz~4000Hz)
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Programing Instructions - filters
XJ-1000 FR
Subsonic = ON
Low pass & High Pass filters can be set from 50Hz to 4000Hz.
“OFF / ON” settings enable or disable the subsonic filter. The subsonic filter
frequency can be set from 16Hz to 30Hz (in 1 Hz increments). This filter
allows user to limit / control the low frequency range of the subwoofer; it is
generally used to protect subwoofers from over excursion and damage
when operating below tuning frequency.

User EQ ONLY AVAILABLE WHEN IN USER MODE
External Trigger
Equalizer modes
Lock Setting
The “ external trigger” setting is used to allow an external 12 V trigger source to turn the
amplifier ON and OFF with a 12 V trigger from another device.
Six equalizer modes to choose from: No-equalization (flat) / Music / Movie / Dynamic /
Impact / user mode (set by user).
Lock setting locks the DSP setting in memory and prevents adjustment via the DSP push button
controls. To lock, set to “Enable”. To turn off the lock, set to “Disable”.
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Programing Instructions - Equalizers
XJ-1000 FR
Flat
Press the right key on remote or turn the encoder knob to the right to enter function. A +/- 10dB gain level adjustment
is available for each frequency point.
When using the rotary encoder: turn “LEFT / RIGHT” to increase or decrease gain / press “ENTER” to change
frequency point or “EXIT”.
When using remote control: press “UP / DOWN” to change frequency point / press “LEFT / RIGHT” to increase or
decrease gain / press “ENTER” to leave function.

Press right key or encode turn right to enter function.
There are 3 independent memories
that can be used to save all the DSP
settings as a single configuration.
Once you have finished programing
all the features, select a memory
location (1,2, or 3) and press ENTER
key to save.
There are 4 memory locations that
store 4 independent DSP settings.
Memories 1,2,and 3 are programing
by the user using “Memory Store”
function.
2- Select the directory where the software will be
installed. If you do not want to change it, it will be
installed in the default directory. Click the mouse on
the browse button, another window appears in
which you can pick where you want to install the
software.
1- Start installation by entering user information.
*** Please install Microsoft Visual Basic PowerPacks 1.2 BEFORE INSTALLATION.
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XJ-1000 FR Programing Instructions - Memory
Memory Storing
Press right key or encode turn right to enter function.
Memory Recall
XJ-1000 FR PC Based Software Installation Shown
(Follow Similar Procedure For MAC Based Software Installation)

3- Now you must decide the folder name from
where you can access the program start.
4- Once this is done an information screen with
the defined installation options will appear and
once confirmed the installation will automatically
start.
5- Now the drivers’ installation screen will appear.
Once the drivers have been installed on your PC,
the program will inform you of the status of the
installation.
6- Complete the entire installation process of the
software
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PC Based Software Installation
XJ-1000 FR

2 3 4
9
8
7
1
5
6
Software Control Panel
1. Load specified file setting.
2. Click File/Load.
3. Select a configuration file(.dat)
for loading.
4. Load configuration to control panel
for preview.
Load
1. Write specified file setting to amplifier.
2. Configuration data has to be loaded with
File/Load in advance.
3. Click File/Write to amp to transfer setting
amplifier.
4. Finish.
Write
Link amplifier. Amplifier
settings will update the status
of control program
simultaneously.
Connect
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How To Program Using PC
XJ-1000 FR
1- File Menu
1. The parameters save to the specified file
2. The amplifier should be connected to PC
then apply Command Link in advance.
3. Click File/Save to save settings on screen.
4. Select path and edit file name to save.
Save
About
Check Software version.
Exit
Exit this program.

6- External Trigger Control
External trigger switch
External trigger status
2- Volume Control
Mute Sound volume control
(-80dB~0dB)
Green = ON
RED = OFF
7- Memory Store/Recall Control
3- Subsonic Control
Subsonic
ON/OFF
Frequency
setting
(16-30 Hz)
5- Phase Control
(0 °/45 °/90 °/135 °/180 °/225 °/270 °/315 °)
This function allows the user to change
the phase at 45 degree increment.
Click to select
green= SELECT
8- EQ Mode Control
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How To Program Using PC
XJ-1000 FR
4- Filter Control
Filter type select
Slope Setting
(12/18/24/30 dB/oct.)
Frequency Setting
(50~4kHz)
(OFF/LPF/HPF)
Three (3) independent memory
storage modes; they can be
used to save all the DSP
settings as a single
configuration.
There are four (4) memory
storage modes that can store
(4) independent DSP settings.
User can program Mem 1 / 2 / 3
using the memory store
function.
A 4th setting (default) resets all
the setting back to original
factory settings.
(Each increment = 2 ms/milli-second)

8- User Equalizer Gain Control
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How To Program User EQ
XJ-1000 FR
Specifications
XJ-1000 FR
POWER OUTPUT
FREQUENCY RESPONSE
TOTAL HARMONIC DISTORTION
SLEW RATE
SIGNAL TO NOISE RATIO
LOAD IMPEDANCE
DAMPING FACTOR
INPUT CONNECTIONS
OUTPUT CONNECTIONS
POWER REQUIREMENTS
SIZE AND WEIGHT
RACK MOUNT SPACE
1 x 600 watts RMS @ 8-Ohms bridged
2 x 300 watts RMS @ 4-Ohms stereo
2 x 150 watts RMS @ 8-Ohms stereo
10Hz - 24kHz
<0.02%, (1W/4ohm)
50 volts / microsecond
> 112dB (balanced) 108dB (unbalanced) @ rated power
2 ohms or greater
> 500
XLR / RCA
Binding posts
110-120VAC~/60Hz
220V-240V~/50Hz
H=1-3/4" x W=19"(including ears) x D=14-1/2(including connectors)
44mm x 483mm x 367mm
13.52 lbs / 6.15 Kg
1U
1 x 1000 watts RMS @ 4-Ohms bridged
2 x 500 watts RMS @ 2-Ohms stereo
When in SELECT USER MODE, users can
customize their own equalizer curve.
The XJ-1000FR has a built in Digital 1/3 octave
equalizer that allows for 10dB boost as well as 10dB
cut with increment of 1dB per click.
The Boosts/Cuts are applicable to 30 points of the
frequency range (from 20 Hz to 16 kHz)

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XJ-1000 FR
Amplifier “ON” No Sound
a) Completely shut your system down including your
amplifier via the circuit breaker.
b) Now turn on the amplifier only. Check to see if the front
Main Power Switch is on.
c) Check the Input Selector switch and make sure that it is
in the correct position. Either RCA or XLR which ever
you are using. Also slide the Input Selector switch back
and forth to ensure good contact.
d) Set the crossover switch so that it is centered. Slide it up
and down and finally back to the middle position.
e) Confirm that the output wires are connected to the
speaker.
f ) Rock the crossover switch back & forth at the amplifier,
you should hear a thump through the speaker during
this process.
WHEN A THUMP IS HEARD:
Check your input source signal. Make sure they are
connected properly to output from processor/source,
not input of processor.
Try to change source to make sure that at least one of
the sources works.
WHEN NO THUMP IS HEARD:
Check amplifier speaker connections and make sure
the speaker wires are securely connected to the
amplifier speaker output and to the speaker.
NOTE: It is possible that if you have proper
connections and you don’t hear sound, the speaker is
burnt.
,
Turn amplifier ON and circuit breaker shuts down
This can either be a short in amp, a poor circuit breaker in
the house or the power cord is not fully connected. Plug
amplifier into another outlet on a different circuit breaker
with nothing connected. If the amp turns on then the
problem is with your home circuit breaker. If the amplifier
still does not power up, please call Earthquake to consult
with a technician.
Humming noise from speakers
Peak LEDs “ON” Constantly
It is normal when running the amplifier to full power that the
LEDs flicker. If the LEDs are on constantly without
flickering (solid red) it means that the amplifier output is
clipping. Reduce volume level to prevent damage to
speakers or amplifier.
Often humming noise is emanating from equipment that
have their ground prong broken. To isolate this problem:
a) With the amplifier OFF, unplug all RCAs connected to
the amp.
b) Turn on amp and listen to speakers. If buzz has
changed or reduced in level, then the problem is
coming to the amp from another source. The rest of
the hum you hear is normal and related to the fact
that the RCAs are open ended.
c) The above step should isolate your problem: star-
ground all components, except amplifier, by daisy-
chaining a thin wire from the processors chassis to all
sources connected to it.
If Problems Persist:
Contact Earthquake Sound Technical Service
Phone: [phone] or 510-732-1000
Email: [email protected]
The following maintenance should be performed routinely:
- Clean the exterior surfaces of the unit with a soft, dry, lint-
free cloth.
- Do not use alcohol, benzene, acetone-based cleaners, or
strong commercial cleaners.
- Do not use a cloth made with steel wool or metal polish.
If the unit is exposed to a dusty environment, a low-
pressure blower may be used to remove dust from its
interior & exterior.
Maintenance
Trouble Shooting and Maintenance

Earthquake Sound reserves the right to amend details of the specifications without notice.
© Copyright Earthquake Sound Corporation
Earthquake Sound Corporation
2727 McCone Avenue, Hayward CA, 94545
Phone: [phone] U.S. Toll Free: [phone] Fax: [phone]
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