Earthquake Sound Stereo Amplifier XJ 600R User Manual

MODEL  
XJ-600R  
DIGITAL FEEDBACK CLASS “J” MONOBLOCK AMPLIFIER  
USERS MANUAL  
Sound That Will Move You  
 
XJ-600R Subwoofer Power Amplifier  
Unpacking and Warnings  
ITEMIZED LIST OF INCLUDED ACCESSORIES:  
1. One (1)AC Power Cable  
2. One (1) Users Manual  
3. One (1) Registration/Warranty Card  
4. One (1) Remote Control  
4. Rack Mounting Brackets and Screws  
When you have safely removed the amplifier from the packaging and placed it in a safe area, perform a thorough physical inspection and report any damage to the dealer  
that you purchased the unit from. We suggest that you keep the original packaging, and that it should be stored in a safe, dry place in case you’re required to transport the  
unit.The customized packaging is specially designed toprotect the amplifier frompotential damage thatcan arise when shipping such a product.  
To reduce the risk of fire or electric shock, do not expose this product to rain or moisture. Don not attempt to “lift the ground” by removing  
WARNING!  
the ground pin from the AC cable. Make sure that your household electrical wiring supports proper AC grounding techniques before  
plugging in this product. Keep the heat sinks and top cover free of dust to allow for proper heat dissipation. Never expose this product to  
extreme temperature. Always connect the audio signal path cable prior toconnecting theAC mains.  
No user-serviceable parts inside. Do not attempt to remove cover or repair this product, as severe electrical shock may result and it may  
disrupt your warranty.  
CAUTION!  
Make sure that your localAC voltage complies with the unit’s label. Damage caused by plugging this amplifier into anAC receptacle of the  
wrong voltage will not be covered by warranty.  
IMPORTANT!  
Specifications Are Subject To Change Without Notice  
3
 
XJ-600R Subwoofer Power Amplifier  
Subwoofer Placement Guide  
Why having two gains on a mono subwoofer is  
a goodthing?  
GOOD / This illustration shows a single subwoofer setup  
Often you hear the term “subwoofers are non-directional”;  
this is not true subwoofer placement is harder to pick when to  
low frequencies are crossed . The wider the room, the more  
directional the subwoofer. The easiest solution is to use two  
subwoofers in the front: one on the left and a second on the  
right. The signal to both is mono. In some applications, users  
might have small front speakers or planer speakers. Both  
speakers have an early roll off in the sub-harmonics. The  
planer needs help from 150Hz on down, having two front  
subwoofers placed on the left and the right is a health  
solution tothis problem.  
The blue arrow represents the subharmonic  
frequencies as they move always toward the sub in  
the single sub system.  
The red arrow represents the lows+ mids+ highs as  
they follow the action.  
Note the breakaway and the image separation.  
Best response if the blue and the red are identical.  
BETTER / This illustration shows dual subwoofer with mono signal  
TwoSubs  
While having two subwoofers is better than one, the MONO  
signal that drives these subwoofers keeps them from  
projecting the three dimensional images in the sub-  
harmonics. The use of two subwoofers allows you to cross  
the sub up to 150 Hz sound quality, imaging and staging. The  
two-front-subwoofer-system is an excellent solution to planer  
speaker’s low frequency response early roll off. When  
locating these subwoofers in a close proximity to the stereo  
satellite, the subs will enhance low frequency extention. It  
will be better to have a stereo subwoofer to help in the lower  
bass notes and their placement.  
The blue arrow represents the sub-harmonic  
frequencies as they move always toward the  
middle in a mono-two-subs- system.  
The red arrow represent the lows+ the mids+ highs  
as they follow the action.  
Note the breakaway and the image separation  
If a bass Guitar player was standing on the left side of the  
stage, and he played an EE note (42Hz) then the right sub will  
also respond to that and create havoc on the stage. This can  
occur if you only have one single sub in the room and it’s  
placed on the right side of the room, while the bass guitar  
player is playing his music on the left side of the stage. As  
soon as he hits the EE note the sub speaks out on the right  
and completely destroys the stage. To give you three-  
dimensional front-end bass that allows you to have a low  
frequency dynamic stage, Earthquake designed dual input  
circuits that use buffers to maintain your stereo separation on  
the processor side while mixing stereo front signals to  
produce 3D bass.  
BEST / This illustration shows dual subwoofers with stereo+mono signals  
In this illustration the stereo subwoofers keep the  
sub-harmonics dynamically synchronized in  
motion with the rest of the audio systems.  
Fully complementary sub-harmonics to the mids  
and the highs  
Specifications Are Subject To Change Without Notice  
4
 
XJ-600R Subwoofer Power Amplifier  
Front and Back Panel Overview  
24dB/Oct Lowpass  
Crossover With  
Bypass Option  
Main Power  
ON/OFF Switch  
0-180° Phase  
Correction  
Room Equalization  
Adjustment Center  
Channel and Power  
Status LEDs  
POWER  
SUBSONIC  
ON  
PHASE SHIFT PHASE DELAY  
ROOM CORRECTION  
30Hz  
GAIN  
CROSSOVER  
ON  
POWER  
0
20Hz  
40Hz  
IN  
ON  
MAIN  
AUTO  
CH2  
CH1  
OFF  
180  
0
20ms  
-6dB +6dB -6dB +6dB -6dB +6dB  
OUT  
40Hz  
200Hz  
BYPASS  
OFF  
XJ-600R  
DUAL INPUT - MONO BLOCK - CLASS "J" POWER AMPLIFIER  
25Hz 12dB/Oct  
Switchable  
Subsonic Filter  
Phase Shift  
By Delay Up  
To 20ms  
MAIN GAIN  
Music Sensing Auto  
Turn ON Switch  
Push Button  
One push of the knob will  
adjust input channel-1,  
another push will adjust  
channel-2 and a third push  
will adjust both gains  
simultaneously (master  
gain). The XJ's LEDs will  
indicate which channel is  
selected.  
OFF Position: Required when  
amp is powered via the 12VDC  
trigger input located at the back  
o f t h e a m p l i f i e r .  
ON Position: Amp on all of the  
time (not recommended).  
AUTO Position: If no signal is  
present the amp will go to sleep  
a f t e r 2 0 m i n u t e s  
(recommended).  
XJ Remote Control  
In mute mode, the MAIN LED will be  
flashing on and off.  
MUTE  
One remote can be used to  
simultaneously control the Volume  
on multiple XJ amplifiers  
VOLUME  
CH-SEL  
For selecting control channels  
High Buffered Mixer  
of LFE & Stereo  
110-120V/  
220-240V  
Switch  
Speaker  
Output  
AC Power  
Connection  
Signal Input CH-2  
Signal Input CH-1  
Ground  
HI-LEVEL  
XLR  
RCA  
HI-LEVEL  
SPEAKER OUTPUT  
110-120V  
220-240V  
6.3 AMPS  
MAX  
12VDC IR  
TRIGGER INPUT  
110-120V~/60Hz 110-120V, FUSE T6.3AL/250V  
220-240V~/50Hz 220-240V, FUSE T3.15AL/250V  
CH2 INPUT  
CH1 INPUT  
DC 12V Trigger Input Sensor Input  
Standard 1/8" Standard 1/8"  
Use Only 1 Input For Each Channel  
Fuse Holder  
Specifications Are Subject To Change Without Notice  
5
 
XJ-600R Subwoofer Power Amplifier  
Single Subwoofer (Stereo & Mono) Connection  
The back side of a typical processor or receiver  
GOOD  
Single subwoofer application  
RCA splitters can be used to double the  
input signal strength. Maximum output  
can be reached with 400mv input, using  
one RCA.  
HI-LEVEL  
XLR  
RCA  
HI-LEVEL  
SPEAKER OUTPUT  
110-120V  
220-240V  
6.3 AMPS  
MAX  
12VDC IR  
TRIGGER INPUT  
110-120V~/60Hz 110-120V, FUSE T6.3AL/250V  
220-240V~/50Hz 220-240V, FUSE T3.15AL/250V  
CH2 INPUT  
CH1 INPUT  
SUB  
Specifications Are Subject To Change Without Notice  
6
 
XJ-600R Subwoofer Power Amplifier  
Dual Subwoofer (Stereo & Mono) Connection  
The back side of a typical processor or receiver  
BEST  
Three dimensional  
subharmonic system  
using two XJ600-R  
and two subwoofers  
HI-LEVEL  
XLR  
RCA  
HI-LEVEL  
SPEKER OUPUT  
110-120V  
220-240V  
6.3 AMPS  
MAX  
12VDC IR  
TRIGGER INPUT  
110-120V~/60Hz 110-120V, FUSE T6.3AL/250V  
220-240V~/50Hz 220-240V, FUSE T3.15AL/250V  
CH2 INPUT  
CH1 INPUT  
HI-LEVEL  
XLR  
RCA  
HI-LEVEL  
SPEAKER OUTPUT  
110-120V  
220-240V  
6.3 AMPS  
MAX  
12VDC IR  
TRIGGER INPUT  
110-120V~/60Hz 110-120V, FUSE T6.3AL/250V  
220-240V~/50Hz 220-240V, FUSE T3.15AL/250V  
CH2 INPUT  
CH1 INPUT  
RIGHT  
7
LEFT  
Specifications Are Subject To Change Without Notice  
 
XJ-600R Subwoofer Power Amplifier  
Room Correction  
The XJ-600R offers a room correction technique that surpasses that of all previous  
attempts. The intelligent “Back EMF” drive circuit interacts with the subwoofer design  
and memorizes system tuning frequencies and system type. The information which is  
stored in microprocessor turns on a preset group delay curve that serves as a  
correction reference. This information deals only with time correction that moves the  
peaks and the dips in a room to a flat. Once that is achieved the user will resort to the  
final correction- EQ the room. For that reason Earthquake’s XJ-600R is truly an  
intelligent system. 20Hz, 30Hz and 40Hz frequencies can be cut or boosted by a  
whopping 12dB, these corrections help in producing wider range of listening position  
thatis unprecedented forthe room.  
(Note: boosting the response at 20Hz is very demanding for your subwoofer. Consult  
with your subwoofer maker, and determine if their subwoofer is designed to take a  
boost atsuch low frequencies.)  
When setting the room EQ, DO NOT over power the speakers as  
this may cause them to bottom out or cause other more severe  
problems that your warranty will not cover. To set up the room  
EQ, you will need a Spectrum-Analyzer, or you can use the rule of  
thumb.  
Specifications Are Subject To Change Without Notice  
8
 
XJ-600R Subwoofer Power Amplifier  
Amplifier Specifications  
POWER OUTPUT  
1 x 700 watts RMS @ 2-Ohms  
1 x 570 watts RMS @ 4-Ohms  
1 x 320 watts RMS @ 8-Ohms  
FREQUENCY RESPONSE  
10Hz - 2.4kHz  
TOTAL HARMONIC DISTORTION  
<0.08%, (1W/4ohm)  
SLEW RATE  
50 volts / microsecond  
SIGNAL TO NOISE RATIO  
LOAD IMPEDANCE  
> 89dB (balanced) 85dB (unbalanced) @ rated power  
2 ohms or greater  
DAMPING FACTOR  
CONTROLS  
> 500  
Power • Room equalization • Room equalization IN/OUT • Subsonic  
filter • Phase shift • Lowpass, Bypass • Channel and power status  
LEDs • Dual gains internally mixed • Music sensing ON/OFF • DC  
turn ON/OFF  
INPUT CONNECTIONS  
OUTPUT CONNECTIONS  
MODE SWITCHES  
XLR / RCA • High-level  
Binding posts  
Phase switch 0° - 180° - Variable time delay 0 to 20 millisecond  
PROTECTION CIRCUITRY  
Short circuit, open circuit, RF burnout, over temp, turn on/off transient  
protection, DC protection, limiter circuitry  
POWER REQUIREMENTS  
SIZE AND WEIGHT  
110-120VAC~/60Hz  
110V-240V~/50Hz  
H=1-3/4" x W=19" x D=14-1/2"  
44mm x 483mm x 367mm  
18.76lbs. • 7.6Kg  
1U  
RACK MOUNT SPACE  
Specifications Are Subject To Change Without Notice  
9
 
XJ-600R Subwoofer Power Amplifier  
Troubleshooting Information  
XJ-600R troubleshoot guide:  
This menu is built around installer's feed back and some basic issues they may face in the field. It is intended to provide you with ideas on how to troubleshoot & isolate  
the problem.  
WARNING: Do not tamper with the internal circuitry doing so may cause damage to you, the amplifier and will indefinitely void the warranty.  
Problem:  
1. No PowerAtAll: Make sure the main power switch is ON (pressed in/left front panel), check forAC power presence, then check if main circuit breaker is tripped off or if  
power cord came unplugged. If all the above passed the test, check the fuse located in the power inlet, horizontal drawer case. Replace it with the appropriate size. If the  
amp still doesn't work or continues toblow fuses then proceed tocall Earthquake's tech department.  
2. Amp Powers Up But No Output: GREEN light is On; switch the Auto turn On selector (right front panel) to the off position and shut down the signal source  
(processor/receiver). LED status should be RED now. Next, switch the selector to the middle position,AUTO; now turn on the signal source and watch for the LED status  
toturn GREEN. IfLED does not turn GREEN then the amplifier is not detecting a signal. Check the audio connection &set-up before the amplifier.  
3. RED LightAlways Stays On: Unplug the amplifier from the wall outlet and wait 20-seconds then reconnect the power plug. Now power up amplifier without any signal  
connected toitand watch forthe LED statustoturn GREEN.  
If you have tried and failed with all of the provided solution then you should call Earthquake for further assistance: 800-576-7944  
Specifications Are Subject To Change Without Notice  
10  
 
XJ-600R Subwoofer Power Amplifier  
Consumer Warranty & Guidelines  
Earthquake warrants the original purchaser that all Factory Sealed  
New Audio Products be free from defects in material and workmanship, under  
normal and proper use, for a period of five (5) years from the date of purchase  
(as shown on the original bill of sale with serial number affixed/written on it). The  
five (5) years warranty period is valid only if the product is properly installed by  
an Earthquake authorized party, and the warranty registration card is properly  
filled out and sent to Earthquake Sound Corporation. If the product is installed  
by a non-authorized party, a ninety (90) days warranty period applies.  
-
-
-
Bent speaker frame, broken speaker connectors, holes in speaker  
cone, surround &dust cap, burnt speaker voice coil.  
Fading, deterioration of speaker components & finish due to improper  
exposure toelements.  
Bent amplifier casing, damaged finish on the casing due to abuse,  
misuse, or improper use ofcleaning material.  
Burnt tracers on PCB.  
Product/part damaged due to poor packaging or abusive shipping  
conditions.  
Subsequent damage toother products.  
-
-
(A)Five (5) years limited warranty plan coverage guidelines:  
-
Awarranty claim will not be valid if the warranty registration card is not properly  
filled &returned toEarthquake with a copy ofthe sales invoice.  
-
-
-
First year: Earthquake pays for labor, parts, and ground freight (only in  
US mainland, not includingAlaska and Hawaii) back tocustomer.  
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 forparts and freight both ways.  
(E)Service Request:  
To receive product/s service, contact Earthquake service department  
at (510) 732-1000 and request an RMAnumber (Return MaterialAuthorization),  
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 toship the product.  
(B)Warning:  
Products (sent for repair) that are tested by Earthquake technicians  
and deemed to have no problem, will not be covered by the five (5) years limited  
warranty. Customer will be charged a minimum of one (1) hour of labor (ongoing  
rates) plus shipping charges back tocustomer.  
(F)Shipping Instructions:  
(C) Earthquake agrees to repair or replace - at our option - all such defective  
products/parts subject tothe following provisions:  
Product/s must be packaged in its original protective box/s to minimize  
transport damage. Shipper claims regarding items damaged in transit must be  
presented to carrier. Earthquake Sound Corporation reserves the right to refuse  
product improperly packed. Original purchase receipt 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  
ConeAvenue, Hayward, CA94545. Ph (510) 732-1000. You are responsible for  
the costofshipping the product toEarthquake Sound Corporation.  
-
Defective products/parts have not been altered or repaired by other  
than an Earthquake factoryapproved 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.  
(G)Disputes Resolution:  
(D) Warranty Limitations:  
All disputes - between clients and Earthquake Sound Corporation -  
resulting from the five (5) years limited warranty policy must be resolved  
according tothe laws &regulations ofthe county ofAlameda -California.  
Earthquake warranty does not cover products that have been modified or  
abused. Including but not limited tothe following:  
-
Damages to speaker cabinet and cabinet finish due to misuse, abuse,  
use ofimproper use ofcleaning materials/methods.  
Specifications Are Subject To Change Without Notice  
 
Sound That Will Move You  
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: 510-732-1000 Fax: 510-732-1095  
 

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