EarthQuake XJ-300FR User Manual

XJ-300 FR

2 Channel or Monoblock Class “J” Ampliﬁer

User’s Manual

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Earthquake Europe Mogensensvej 29 5000 Odense C Tel: +45 2043 8007

Customer Support E-mail: support@earthquakesound.dk Web: www.earthquakesound.eu

www.earthquakesound.dk

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:

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:

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Calls attention to information that is essential to highlight.

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 groundingtype 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: powersupply 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.

XJ-300FR Manual 3Speciﬁcations are subject to change without notice

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.

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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

XJ-300FR Manual 5Speciﬁcations are subject to change without notice

Front Features

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.

3) Auto Music Sensing:

Ampliﬁer automatically turns on when it senses signal.

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