EarthQuake XJ-300 FR Bedienungsanleitung
User’s Manual
Earthquake Sound Corp. | (510) 732-1000 | www.earthquakesound.com
XJ-300 FR
2 Channel or Monoblock Class “J” Amplifier
2 XJ-300FR Manual Earthquake Sound Corp. | www.earthquakesound.com
Earthquake Sound Corporation
2727 McCone Avenue
Hayward, CA 94545
Tel: 510-732-1000
Fax: 510-732-1095
Customer Support
Tel: 800-576-7944
Fax: 510-732-1095
© 2011 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.
The Sound That Will Move You.
Safety Instructions
Safety First
This documentation contains general safety, installation, and operating
instructions for XJ-300FR. It is important to read this user’s manual before
attempting to use these products. Pay particular attention to the safety
instructions.
Symbols Explained:
Note:
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.
Calls attention to information that is essential to highlight.
XJ-300FR Manual 3Specifications are subject to change without notice
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.
4 XJ-300FR Manual Earthquake Sound Corp. | www.earthquakesound.com
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.
XJ-300FR Manual 5Specifications are subject to change without notice
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
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.
6 XJ-300FR Manual Earthquake Sound Corp. | www.earthquakesound.com
Front Features
3) Auto Music Sensing:
Amplifier automatically
turns on when it senses
signal.
1) Power Switch:
Switch to “ON” to turn
on or to use the Auto on
music sensing feature.
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.
XJ-300FR Manual 7Specifications are subject to change without notice
3) Auto Music Sensing:
Amplifier automatically
turns on when it senses
signal.
4) Bypass/Lowpass:
Set to Bypass to use as a
2 channel or 2.1 channel
amplifier. Set to Lowpass
to use as a 1 channel or
subwoofer amplifier.
5) Phase Setting:
Use to correct subwoofer
frequency arrival times.
Can only use when in “Low
Pass” setting.
6) Crossover Setting:
Room equalization for
subwoofer frequencies.
Can only use when in “Low
Pass” setting.
7) Volume Setting:
Set based on the input
level and power rating of
your load.
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.
8 XJ-300FR Manual Earthquake Sound Corp. | www.earthquakesound.com
Back Features
1) RCA Inputs
The most common
audio input
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.
2) Input Toggle
3) USB Port:
Can receive both power
and signal.
4) Speaker Outputs:
Can be outputted to 2
speakers, two speakers
and a subwoofer, or
bridged to 1 channel.
USB Port
(+)
5.5V
(L) (R) (–)
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.
XJ-300FR Manual 9Specifications are subject to change without notice
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.
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.
10 XJ-300FR Manual Earthquake Sound Corp. | www.earthquakesound.com
Mounting Options for 1 XJ-300FR
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.
Then bolt to any vertical or horizontal
surface.
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.
Wall (or Anywhere) Mountable
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