Earthquake XJ-300ST Class J Stereo amplifier

£400.00 inc. VAT
£333.33 exc. VAT

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The new XJ300ST packs more power and flexibility in its small chassis than any other amplifier of comparable size. New features include Auto On function and 12V Trigger.

SKU: XJ-300ST Categories: ,


The special XJ technology allows for a novel 2.1 configuration. With the XJ300ST it is possible to connect a third speaker between the two main channels. This matrix, mono channel plays the combined content of both channels. This is extremely useful for powering 2 satellites and a subwoofer that has an inbuilt crossover.

Adding to this flexibility comes the new patented EQ Interlock design – two amplifiers can be clicked together resulting in a 4 channel amplifier using only a single rack space. The XJ-300ST can also be mounted on the wall or inside the cabinet by fastening the short mounting ears to the pre-assigned holes on the side of the amplifier.
With endless configuration scenarios, the XJ-300ST amplifiers can be used as mono (bridged) amplifiers, 2.1 channel amplifiers, 2-channel amplifiers, 4/8/12 and 16 channel amplification with industry leading power density and efficiency.

All the installer or avid user needs to begin any size installation is a given number of XJ300ST amplifiers. No need to buy a cumbersome mix of different amplifiers to achieve a certain number of channels or power level. Besides the simplicity this is an inventory dream for any installer.

Need a subwoofer amp? grab 1 XJ300ST.
Need a 4 channel amp? grab 2 XJ300ST.
Need to wire a complete 7.1 system with very large front speakers? Grab 5 XJ300ST.
Bridge one for each LCR and use the remaining two for the 4 rear channels.
All this using only 3U of rack space!

Approaching 99 percent efficiency, the XJ amp never gets super-hot and can be placed in a tight rack with components on all sides. At only 1U rack high and half a rack in width, this is an amazing achievement.
The XJ300ST produces continuous rock solid power – 110 Watts RMS at 8 ohms per channel, 170 Watts RMS at 4 ohms per channel and 320 Watts RMS bridged into 4 ohm.
This massive power capability is possible due to the advanced nature of the patented Class J output stage. The switching frequency of the output and the amplitude of the power supply is modulated in real time based on the frequency and amplitude content of the input.
No other amp can match the efficiency and power of Class J.

Please note: All outputs are mono when the Low Pass setting is in the “ON” position.

Wall or rack mountable
Class “J” Stereo Modular design
RCA and USB inputs
Auto Signal Sensing ON / OFF
Volume control

Box Contents
1 XJ-300ST Stereo Class “J” Amplifier
4 Short Mounting Ears
1 Rear Bracket +Screws
1 Power Cord
User Manual

Technical Information
Model: XJ-300ST
Frequency Response: 20Hz – 20kHz

Power Output:
2 x 110 WRMS (8 ohm Stereo)
2 x 170 WRMS (4 ohm Stereo)
170 WRMS (8 ohm Mono Bridged)
300 WRMS (4 ohm Mono Bridged)

Signal To Noise Ratio: >97dB
Load Impedance: 4 ohms or greater
Crossover: 50Hz -160Hz
High Pass Filter: 15 HZ
Phase infinitely variable: 0 to 180 degrees THD: 0.08%
Damping Factor: >1400 Input Impedance: 10Kohm
Power Line Voltage: 110-220~AC 50/60Hz
Dimensions: 21.59 cm (W) x 20.32 cm (D) x 4.76 cm (H)
Weight: 1.7 kg
Finish: Flat Black

Additional information

Package Weight 3.8 kg


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