Earthquake Sound Stereo Amplifier XJ 300 FR User Manual

XJ-300 FR  
2 Channel or Monoblock Class “J” Amplifier  
User’s Manual  
Earthquake Sound Corp. | (510) 732-1000 | www.earthquakesound.com  
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Safety Instructions  
1) Read these instructions in their entirety.  
2) Store this manual and packaging in a safe place.  
3) Heed all warnings.  
4) Follow instructions (do not take short cuts).  
5) Do not use this apparatus near water.  
6) Clean only with a dry cloth.  
7) Do not block any ventilation openings. Install in accordance with the  
manufacturer’s instructions.  
8) Do not install near any heat sources such as radiators, heat registers,  
stoves, or other apparatuses that produce heat.  
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A  
polarized plus has two blades with one wider than the other. A grounding-  
type plug has two blades and a third grounding prong. The wide 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.  
11) Only use attachments & accessories specified by the manufacturer.  
12) Use only compatible rack or cart for final resting position.  
13) Unplug this apparatus during lightening storm or when unused for a long  
period of time.  
14) Refer all servicing to qualified service personnel. Servicing is required  
when the apparatus has been damaged in anyway, such as: power-  
supply cord or plug is damaged, liquid has been spilled or objects have  
fallen into the apparatus, the apparatus has been exposed to rain or  
moisture, does not operate normally, or has been dropped.  
15) To reduce the risk of fire or electric shock, do not expose this apparatus  
to rain or moisture.  
Specifications are subject to change without notice  
XJ-300FR Manual  
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Unpacking System Components  
• Keep the original carton and packing materials for future shipment or  
storage.  
• Check for any visual signs of damage. If you encounter any concealed  
damage, consult your Earthquake Sound dealer before proceeding with unit  
installation.  
• Retain the sales receipt as it establishes the duration of the limited warranty  
and provides information for insurance purposes.  
System Installation Considerations  
There are several factors to consider before installing Earthquake Sound’s  
XJ-300FR.  
• What are the intended listening zones?  
• What system options and accessories might be required for features such  
as local sources, etc.?  
• From where in each zone will the listener prefer to control the system? Where  
will the remote gains be located? Where will the speakers be located?  
• Where will the source equipment be located?  
Connection Tips  
• Keep all power cords away from all signal cables to prevent humming from  
induced noise.  
• Choose reliable signal cable cords (Earthquake Sound also specializes in  
high-performance RCA cables and patches).  
• All speaker wires that are ran through the walls should be twisted to reduce  
potential hum noise pick up.  
• Label both ends of all wires with the corresponding room location.  
• It is best to use a grounded electrical outlet to power the amplifier. Lack of  
input ground reference could be unsafe. Consult your electrical contractor  
about proper grounding.  
4
XJ-300FR Manual  
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Introduction  
The XJ-300FR amplifier is an extremely versatile and modular amplifier. It can  
be used as a two channel, 2.1 channel, or bridged as a 1 channel amplifier.  
The XJ-300FR runs completely cool while outputting twice the power of most  
amplifiers its size. Therefore, it is extremely flexible and can be used in many  
different applications.  
Multiple Mounting Options  
The XJ-300FR is only one rack space tall and has a half-rack width chassis.  
This smart design features a patented interlocking design so two XJ-300FRs  
can be connected side by side and be rack mountable. Other amplifiers of  
the same size run too hot to mount them near anything else which defeats  
the purpose of their size. Because the XJ-300FRs run completely cool, you  
can comfortably mount other components directly above or below them in  
the rack. This means ultimate convenience for the installer. There are also  
additional mounting holes on the sides of the amplifier so that short brackets  
can be attached and the amp can be mounted directly to a wall or inside a  
cabinet.  
Speaker Set-up Options  
One or two XJ-300FRs can power a 2.1 channel system. This depends on  
how much power you want to output to your speakers. One XJ-300FR can  
be used for two speakers while the other can be bridged as a monoblock.  
Alternatively, you can use two linked XJ-300FRs as a 4 channel system. For  
a more high powered system, bridge both of them and designate one speaker  
or sub to one amplifier and another speaker or sub for the other. The installer  
is completely in charge of how the amplifier’s power is distributed.  
Applications  
The XJ-300FR has countless applications because of how customizable the  
channel set-up is. If you need to install in-ceiling speakers in the kitchen,  
tower speakers in the living room, or rock speakers outside, the XJ-300FR  
can perform accurately in every situation.  
Included in the Box  
1 XJ-300FR Stereo Class “J” Amplifier  
4 Short Mounting Ears  
1 Bracket  
4 Screws for the Bracket  
1 Power Cord  
Specifications are subject to change without notice  
XJ-300FR Manual  
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Front Features  
1) Power Switch:  
3) Auto Music Sensing:  
Switch to “ON” to turn  
Amplifier automatically  
on or to use the Auto on turns on when it senses  
music sensing feature. signal.  
2) LED Light:  
Green light signifies the  
amp is on.  
1) Power Switch:  
In order to enable the auto on music sensing feature, please see 3.  
3) To Enable Auto Music Sensing:  
A) Back toggle switch must be set to “RCA” (the down position).  
B) Front toggle switch must be set to “AUTO ON”.  
C) Power switch must be set to “ON”.  
D) With signal, amplifier comes on right away.  
E) When there is no signal for three minutes, the amplifier shuts off.  
4) Bypass/Lowpass Toggle Switch:  
When set to Bypass, it overrides the phase and crossover controls.  
They are only to control low frequencies.  
5) Phase Setting:  
If you are using the XJ-300FR to power a subwoofer, you will  
need to set the arrival time of the subwoofer’s frequencies to that of your  
speakers. To do this with the highest accuracy, you will need an SPL meter  
supplied at most electronics stores.  
To set the phase:  
A) Send a 50Hz continuous tone signal through the speakers and  
the subwoofer at the same time.  
6
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5) Phase Setting:  
7) Volume Setting:  
Set based on the input  
level and power rating of  
your load.  
Use to correct subwoofer  
frequency arrival times.  
Can only use when in “Low  
Pass” setting.  
4) Bypass/Lowpass:  
6) Crossover Setting:  
Set to Bypass to use as a Room equalization for  
2 channel or 2.1 channel subwoofer frequencies.  
amplifier. Set to Lowpass Can only use when in “Low  
to use as a 1 channel or  
subwoofer amplifier.  
Pass” setting.  
B) Turn the phase knob to zero and place the meter in the listening  
position.  
C) While the system is playing the 50Hz tone, read the meter.  
D) Rotate the phase knob until the meter reads the highest  
possible.  
E) Take note of the position for future reference.  
6) Crossover Setting:  
As a rule of thumb:  
A) If you are powering the THOR In-Wall SUB10, the Q10B tactile  
transducer, or a large subwoofer (12” - 18”), set the crossover to  
50Hz - 100Hz.  
B) If you are powering a MQB-1 tactile transducer, a 10” subwoofer,  
or small front speakers, set the crossover to 70Hz, or the 9  
o’clock position.  
C) If you powering a small subwoofer (8”) or small speakers, set the  
crossover to 100Hz, or the 12 - 2 o’clock position.  
Specifications are subject to change without notice  
XJ-300FR Manual  
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Back Features  
1) RCA Inputs  
The most common  
audio input  
3) USB Port:  
Can receive both power  
and signal.  
2) Input Toggle  
4) Speaker Outputs:  
Can be outputted to 2  
speakers, two speakers  
and a subwoofer, or  
bridged to 1 channel.  
1) RCA Inputs:  
If you are using the XJ-300FR as a mono block (1 channel  
amplifier), connect only the left (white) RCA terminal. Be sure the toggle  
switch is set to “RCA” in order to use this input.  
2) Input Toggle:  
The XJ-300FR is capable of receiving signal through either the  
RCA or USB input. Please note that the Auto-on music sensing feature is  
only supported by the RCA input.  
3) USB Port:  
Capable of receiving power and signal, the USB port is optimized  
for use with the SWAT 2.4 Wireless Transceiver. It uses the standard USB  
5.5V. Be sure the toggle switch is set to “USB” in order to use this input.  
USB Port  
The four metal contacts enable the USB  
to be used for both power and signal. The  
outer metal contacts receive the positive  
and negative currents while the inner  
metal contacts receive the left and right  
audio.  
(+) (L) (R) (–)  
5.5V  
8
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5) 110V/220V Option:  
Should already be set  
to the correct voltage  
depending on your region.  
6) Power Supply:  
Comes with a replacement  
fuse directly under power  
inlet.  
4) Speaker Outputs:  
A) To use the XJ-300FR as a two channel amplifier, connect the  
right speaker to the R+ and R- terminals and the left speaker to  
the L+ and L- terminals.  
B) To bridge the XJ-300FR as a one channel amplifier (or  
monoblock), connect the positive speaker wire to the L+ terminal  
and connect the negative speaker wire to the R- terminal. Do not  
connect anything to the two lower black terminals.  
C) To use the XJ-300FR as a 2.1 channel amplifier, connect the  
right speaker to the R+ and R- terminals and the left speaker to  
the L+ and L- terminals. Then, connect the subwoofer positive to  
the L+ terminal and the subwoofer negative to the R- terminal.  
5) 110V/220V:  
Do not attempt to change the voltage setting. The amplifier should  
already be set to the correct voltage depending on your region. If not, please  
contact your local Earthquake Sound dealer.  
6) Power Supply:  
To access the 250V replacement fuse, use a flat head screwdriver  
to pry off the plastic cover.  
Specifications are subject to change without notice  
XJ-300FR Manual  
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Mounting Options for 1 XJ-300FR  
Wall (or Anywhere) Mountable  
The XJ-300FR can uniquely be mounted to a wall or inside a cabinet.  
Simply screw in the four short ears to the matching holes on the sides of the  
amplifier chassis.  
Then bolt to any vertical or horizontal  
surface.  
The XJ-300FR also comes with four rubber feet to not damage the bottom in  
the instance that it simply sits on a shelf or cabinet.  
10 XJ-300FR Manual  
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Linking 2 XJ-300FRs  
The XJ-300FR’s ingenious design lets the user link two amplifiers together  
depending on the desired channel set-up.  
1
1
2
1) Match the bolts on the left side of one amp with the linking holes on the  
right side of the other amp.  
2) Once they are connected, push the right amp forward while pushing  
the left amp backwards until they are locked together. They are linked  
correctly when the faceplates are flush.  
3) Bracket the backplates of the amps together for added reinforcement.  
WHEN LINKING THE AMPS, DO NOT APPLY PRESSURE  
ONTO THE FRONTPLATES OR BACKPLATES. THIS  
COULD DAMAGE THE TERMINALS, KNOBS, OR TOGGLE  
SWITCHES. AMPS DAMAGED IN THIS WAY ARE NOT  
COVERED BY THE WARRANTY.  
3
Specifications are subject to change without notice  
XJ-300FR Manual 11  
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Mounting 2 XJ-300FRs  
Screw short mounting arms to the outer sides of the amplifiers so they are  
rack mountable.  
Or screw two mounting arms on each side so the set is wall mountable.  
12 XJ-300FR Manual  
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Connecting to a Subwoofer/Tactile Transducer  
Make sure the front toggle switch is set to “Low Pass” if  
connecting to a subwoofer or tactile transducer.  
Note:  
Wiring with the THOR In-Wall Subwoofer  
Receiver/Processor  
_
+
Wiring with the Q10B Tactile Transducer  
Receiver/Processor  
_
+
Specifications are subject to change without notice  
XJ-300FR Manual 13  
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Connecting to Tactile Transducers  
Make sure the front toggle switch is set to “Low Pass” if  
connecting to a subwoofer or tactile transducer.  
Note:  
Wiring with 2 MQB-1 Tactile Transducers  
Receiver/Processor  
_
_
+
+
Do not wire 1 MQB-1  
with the mono bridge  
setting. Use either the  
left or right speaker  
output.  
Connecting to Outdoor Speakers  
Make sure the front toggle switch is set to “Bypass” if  
connecting to speakers or a 2.1 channel system.  
Note:  
Wiring with AWS All Weather Speakers  
Receiver/Processor  
_
_
+
+
AWS 602 or AWS 802  
This may overload the  
speakers. Be sure to  
not set the volume too  
high.  
14 XJ-300FR Manual  
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Connecting to Outdoor Speakers (cont.)  
Wiring with the ROCK-on 2.1 channel system  
Series Wiring  
Granite-10D Subwoofer  
Receiver/Processor  
_
+
_
+
_
_
+
+
This may overload the  
speakers. Be sure to  
not set the volume too  
high.  
Granite-52 Speakers  
Option 2  
Though 1 XJ-300FR is capable of powering the Granite 2.1 system, you can  
use 2 linked XJ-300FRs for more power. Set the bridged amplifier to “Low  
Pass” to power the subwoofer and set the other amp to “Bypass” to power  
the speakers.  
This may overload the speakers.  
Be sure to not set the volume too  
high.  
_
_
+
+
_
_
+
+
Granite-10D Subwoofer  
Granite-52 Speakers  
Specifications are subject to change without notice  
XJ-300FR Manual 15  
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Connecting to SWAT 2.4 Wireless Transceiver  
Make sure the back input toggle switch is set to “RCA” if  
connecting to the SWAT 2.4 Version 1.  
Note:  
The XJ-300FR is optimized for use with the SWAT 2.4 Wireless Transceiver.  
After the amplifier is wired to the speakers, connect the SWAT 2.4 Receiver  
to the RCA inputs on the XJ-300FR using a mini-jack to RCA Y adaptor. To  
power the SWAT 2.4, connect a USB cable from the SWAT to the amplifier.  
SWAT 2.4 Wireless Receiver  
Connect the SWAT 2.4 Transmitter to your  
music source, processor, or computer with  
an RCA or mini-jack output. Be sure to  
power the SWAT with either the supplied  
wall wart or through the USB port. Now you  
can wirelessly transmit audio to the XJ-  
300FR.  
SWAT 2.4 Wireless Transmitter  
SWAT 2.4 Version 2 will be able to  
transmit both signal and power through  
Note:  
its USB port, thus eliminating the need  
for any RCA connection.  
Music Source  
with audio output  
16 XJ-300FR Manual  
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Specifications  
Model No.  
XJ-300FR  
Output Power  
8-ohm load: 2 x 110 WRMS  
4-ohm load: 2 x 170 WRMS  
Mono Bridged:  
8-ohm load: 170 WRMS  
4-ohm load: 300 WRMS  
Frequency Response 20Hz - 20kHz  
THD  
0.08%  
>400  
Damping Factor  
Signal to Noise Ratio >97dB  
Power Line Voltage  
110 - 120C ~ AC/60Hz/180W  
(110/220V)  
Input Sensitivity for  
Full Output  
max/min: 0 - 5V  
Input Impedance  
Weight  
10Kohm  
3.8lbs/1.7kg  
Dimensions  
8” (chassis)  
9-1/2” (including knobs)  
1-7/8” (no feet)  
2-1/16” (w/ feet)  
8-1/2”  
7/8”  
1-7/8”  
Short Ear  
1”  
Specifications are subject to change without notice  
XJ-300FR Manual 17  
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5 Year Limited Warranty  
Earthquake warrants the original purchaser that the speaker  
or amplifier (product) is 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 the 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 thirty  
(30) days warranty period applies.  
(A) Five (5) years limited warranty plan coverage guidelines (If installed by  
an authorized Earthquake dealer):  
• First year: Earthquake pays for labor, parts, and ground freight  
(only in the U.S. mainland, not including Alaska and Hawaii)  
back to the customer.  
• Second year: Earthquake pays for labor and parts only, customer  
must pay freight both ways.  
• Third, fourth, and fifth year: Earthquake pays for 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, 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  
back to the customer.  
• Each product sent for repair must be packaged in its original  
packaging. Otherwise, there will be a repackaging charge in  
addition to labor, parts, and shipping charges.  
(C) Earthquake agrees to repair or replace, at our option, all such 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, removed, or have been used in anyway that is  
contrary to Earthquake’s written instructions.  
(D) Warranty Limitations:  
Earthquake warranty does not cover products that have been modified and/  
or abused, including but not limited to the following:  
• Damages to unit cover and finish due to misuse, abuse, or  
improper use of cleaning materials/methods.  
18 XJ-300FR Manual  
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5 Year Limited Warranty (cont.)  
• Bent casing, damaged finish on casing due to abuse, misuse, or  
improper frame or broken connections.  
• Fading, deterioration of components and finish due to improper  
exposure to elements.  
• Burnt tracers of PCB.  
• Product/part damaged due to poor packaging or abusive shipping  
conditions.  
• Subsequent damage to other products.  
A warranty claim will not be valid if the warranty registration card is not  
properly filled and returned to Earthquake with a copy of the sales invoice.  
(E) Service Request:  
To receive product(s) service, contact Earthquake Sound’s service  
department at (510) 732-1000 and request an RMA number (Return Material  
Authorization), item(s) shipped without a valid RMA number will be refused.  
Make sure you provide us with your complete and 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 item(s) damaged in  
transit must be presented to the carrier. Earthquake Sound Corporation  
reserves the right to refuse improperly packed product(s). A copy of  
original sales receipt must accompany product(s) returned for service. We  
encourage you to include a written description of the problem inside the  
package. Ship product to:  
Earthquake Sound Corp.  
2727 McCone Avenue  
Hayward, CA 94545 USA  
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 and regulations of the county of Alameda, California.  
Specifications are subject to change without notice  
XJ-300FR Manual 19  
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The 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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