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

[email protected]

Tel: 800-576-7944

Fax: 510-732-1095

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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