| XJ-300ST  Earthquake XJ-300ST Class J Stereo amplifier
The new XJ-300ST amplifier packs more power and flexibility than any other amplifier. No amplification task is beyond its capability. With an unimposing miniature size and almost unreal amounts of cool running power, this advanced Class J amplifier is the installers go to dream.
The XJ300ST is also exciting news for the tactile transducer/bass-shaker crowd as it sports all the features of the 300R while adding a whopping 20 percent more power.
The special XJ technology allows for a novel 2.1 configuration. With the XJ-300ST 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.
2.1 Speaker Setup 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 1 rack U of 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 XJ-300ST 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 x XJ-300ST.
Need a 4 channel amp? grab 2 x XJ-300ST.
Need to wire a complete 7.1 system with very large front speakers? Grab 5 x XJ-300ST.
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 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 XJ-300ST produces continuous rock solid power - 110 Watts RMS at 8 ohms pr channel and 320 Watts RMS bridged into 8 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.  Optional Long Ears extension bracket for the XJ-300ST Priced and sold per piece. Specifications: - Model nr.: XJ-300ST
- EAN: 0068975901388
- 2 X 110 WRMS (8-Ohm Stereo)
- 2 x 170 WRMS (4-Ohm Stereo)
- 170 WRMS @ 110 volt AC (8-Ohm Mono Bridged)
- 210 WRMS @ 230 volt AC (8-Ohm Mono Bridged)
- 320 W-IHF (dynamic power) @ 230 volt AC (4-Ohm Mono Bridged)
- Wall or rack mountable
- Class “J” Stereo Modular design
- RCA inputs
- +12V Trigger
- Compact size
- Volume control
- Finish: Flat Black
- Weight: 1.7 kg
- Comes with 4 detachable rack ears + 1 connector bracket (for connecting multiple amplifiers)
- OPTIONAL Long Ears extension brackets available
- Frequency Response: 20-20kHz
- High Pass Filter: 15 HZ
- Phase infinitely variable: 0 to 180 degr.
- Crossover: 50Hz - 160Hz
- Signal To Noise: 101 dB
- Load Impedance: 2 Ohms or greater
- THD: 0.08%
- Damping Factor:> 1400
- Power Line Voltage: 110-220 ~ AC50/60Hz
- 10 minutes of no signal puts the amp into sleep mode.
(It takes 0.05 volt of signal to wake up up from sleep mode. With gain to max it takes 0.270 volt to clip the amp at 1 percent). The amp now has a square wave detector built in to its protection circuits. This means it can tell if a signal feed to it is already clipped. IF this happens the amp will shut off. It has to be powered on and off for it to reset after this happens. This new protection system will help prevent damaged tweeters due to line signal clipping. Caution should still be exercised to run all system components within their design limits.
Dimensions: 
More details about the XJ-300ST and the technology behind it
Resources: XJ-300ST Manual XJ-300ST Cut Sheet XJ-300ST Product Release XJ-300ST Speaker Selection Guide XJ-300ST Cable Setup Manual XJ-300ST CE Certification XJ-300ST Schematic 2019 |
