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Congratulations......................................

Features.................................................

Crossover Setting...................................

Phase Setting.........................................

Using with Q10B.....................................

Using with MQB-1...................................

Using with THOR In-Wall SUB10...........

Schematic...............................................

Warranty Information........................

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CONGRATULATIONS

TABLE OF CONTENTS

Congratulations and thank you for purchasing the XJ-300R amplifier. The 
XJ series are stand alone compact amplifiers that allow custom home 
installation to have a powerful high efficiency amplification while fitting 
into small places.  The XJ-300R comes with a set of standard ears that 
allows the user to install it in a standard single rack mount.  Whether you 
are looking to power a subwoofer or a tactile transducer, the XJ-300R is 
guaranteed to deliver.

Powered by a switching regulated power supply, the XJ delivers a steady 
and regulated output which delivers a linear amplification to your load.  
Only through linear amplification do you get the chance to deliver 
accuracy in amplification.   

What is class J?
Class J is a monitoring circuit that optimizes class D amplifiers.  The 
class J is a class D amplifier which has a microprocessor algorithm that 
trades in high efficiency for high quality throughout the audio spectrum.  
In simple terms, the class J gives you the highest efficiency possible 
without compromising quality.  

The XJ amplifiers possess an oversized power supply: 8 ohms, 4 ohms, 
and even 2 ohms. These amplifiers will deliver clean, accurate sound 
with massive damping factor.

Enjoy!

Summary of Contents for XJ-300R

Page 1: ...erves 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 U S Toll Free 800 579 7944 Fax 510 732 1095 ...

Page 2: ...er or a tactile transducer the XJ 300R is guaranteed to deliver Powered by a switching regulated power supply the XJ delivers a steady and regulated output which delivers a linear amplification to your load Only through linear amplification do you get the chance to deliver accuracy in amplification What is class J Class J is a monitoring circuit that optimizes class D amplifiers The class J is a c...

Page 3: ...e using the XJ 300R to drive a subwoofer including Earthquake s THOR In Wall SUB10 then you will need to set the crossover below 100Hz If you have a large subwoofer such as a 12 15 or even 18 then you will have a great response with the crossover set to the 12 o clock setting or minimum setting For use with a 8 or 10 subwoofer you will find the 12 o clock and 2 o clock setting to be the best range...

Page 4: ...XJ 300R with Q10B Q10B 8 Ohm Application XJ 300R with MQB 1 MQB 1 4 Ohm Parallel Application MQB 1 8 Ohm Standard Application 7 6 ...

Page 5: ...edance 8 2 kilo ohm line level inputs 32 ohm speaker level inputs Internal System Gain 42dB from left input jack to speaker with the Bass Level control at 0dB 54dB with the control full clockwise Output Power into 4 ohm load 280 WRMS Output Power into 8 ohm load 140 WRMS PRODUCT SUPPORT Please contact Earthquake Sound Technical Support Department for questions regarding any of the products mention...

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