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Earthquake Sound XJ-300R and XJ-600R Subwoofer Amplifiers


XJ-Series Amplifiers Deliver Truly Advanced Room Correction

Earthquake Sound Corporation, the leading designer and manufacturer of the world’s most powerful amplifiers and subwoofers, has unleashed a new breed of subwoofer amplifiers.

Companies claim that they have room correction built into their amplifiers, which in fact is only level adjustment by volume. Earthquake Sound’s XJ line of amplifiers delivers the tools you need correctly adjust a room to precision audiophile status.

Other companies use a simple equalization method that does not correct, “phase” related problems. Earthquake’s new XJ amps have true room correction that takes into consideration both time/reflection and refraction. These new state of the art amplifiers fix arrival time first then the room’s equalization. Others simply mask the problem by adjusting the volume rather than solving it. Can they call that room correction? The new 99% efficient XJ earthquake amplifiers address the actual phase correction problem along with the room EQ.


The XJ line consists of two high performance power amplifiers: XJ-300R (above): 300 Watts and XJ-600R (below): 600 Watts.

About Earthquake Sound Corp.
Earthquake’s innovative audio technologies connect millions of people around the world with the sound solutions they need. Founded in 1985 by Joseph J Sahyoun and his brother Abraham Sahyoun, Earthquake Sound designs, manufactures, and markets high performance audio systems for use in home and audio-video systems, after-market and OEM automotive systems. Earthquake’s great dealer programs and consumer warranties provide measurable profit margin, while enhancing the overall experience for users. Earthquake is headquartered in Silicon Valley with offices throughout the Americas, Europe, and Asia. For more information, visit


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