New Arrivals/Restock

Earthquake Sound XJ-300ST Home Audio 300W Class J Stereo Modular Power Amplifier - Mono, 2, and 2.1 Channel for Passive Speakers, Subwoofers, and Tactile Transducers

flash sale iconLimited Time Sale
Until the end
11
12
26

$239.40 cheaper than the new price!!

Free shipping for purchases over $99 ( Details )
Free cash-on-delivery fees for purchases over $99
Please note that the sales price and tax displayed may differ between online and in-store. Also, the product may be out of stock in-store.
New  $399.00
quantity

Product details

Management number 208610303 Release Date 2026/03/22 List Price $159.60 Model Number 208610303
Category

The XJ-300ST amplifier from Earthquake Sound packs more power and maintains more flexibility than any other amplifier; no amplification task is beyond its capability. With its unimposing miniature size and an unbelievable amount of cool running power, this powerful and compact class J amplifier is an installer's go-to dream. Keeping flexibility and convenience in mind, Earthquake has kept its patented interlocking design so that two amplifiers can be connected, resulting in a 4-channel amplifier configuration using only 1U of rack space. The XJ-300ST can also be mounted on the wall or inside a cabinet by affixing the short mounting ears to the preassigned holes on the sides of the amplifier. With endless configuration scenarios, the XJ-300ST amplifier can be used as a mono (bridged) amplifier, 2.1-channel amplifier, 2-channel amplifier 4/8/12, and 16-channel amplification with industry-leading power density and efficiency. With the XJ-300ST, connecting a third speaker between the main channels is possible. This matrix mono channel (aka "tri-mode" configuration) plays the combined content of both channels. It is beneficial for powering 2 satellite speakers and a subwoofer. Approaching 99% efficiency, the XJ-300ST amplifier runs cool and composed and can be placed in a tight rack with components on all sides. The massive power capability is made 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 amplifier can match the efficiency and power of Earthquake's Class J technology.

  • Miniature, cool-running stereo modular amplifier packs more power and flexibility than any other amplifier - No amplification task is beyond its capability - an installer's go-to amplifier
  • Just 1U rack space tall with a half-rack width chassis; Smart design features a proprietary interlocking configuration so two XJ-300STs can be rack-mounted side by side (optional RM-300FR long rack mounting ears sold separately)
  • XJ technology allows for a novel 2.1 configuration: With the XJ-300ST, connecting a third speaker between the two main channels is possible; This matrix mono channel plays both channels' combined content, allowing for a 2 satellite speaker and subwoofer setup
  • Because the XJ-300ST is so versatile, multiple XJ-300ST amplifiers can be employed to assemble multi-channel audio configurations
  • Power Handling: 2 x 110 WRMS @ 8-Ohm, 2 x 170 WRMS @ 4-Ohm, 170 WRMS @ 8-Ohm Mono Bridged, 300 WRMS @ 4-Ohm Mono Bridged
  • Frequency response: 20Hz–20kHz; Impedance: 2 Ohm or greater; Crossover: 50Hz–160Hz; SNR: > 97 dB; Damping Factor: > 400; THD: < 0.08%; Input Impedance 10 kOhm; Input Connections: RCA; Output Connections: 5-way binding posts; +12V trigger and auto signal sensing
UPC 689759001386
Brand EARTHQUAKE
Voltage 12 Volts
Material Metal and plastic
Item Weight 4 pounds
Manufacturer EARTHQUAKE
Output Power 3E+2 Watts
Mounting Type Wall Mount
Supply Current 25 Amps
Item model number XJ-300ST
Package Type Name flat box" or "slim packaging
Specification Met FCC
Number of Channels 2
Product Dimensions 8.5 x 8 x 1.87 inches
Maximum Supply Voltage 12 Volts
Minimum Supply Voltage 12 Volts
Item dimensions L x W x H 8.5 x 8 x 1.87 inches
Global Trade Identification Number 00689759001386

Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Product Review

You must be logged in to post a review