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Product Description

Boston's XB4 subwoofer delivers the dynamic bass foundation that is essential for lifelike reproduction of movie soundtracks and music in the home. This attractive, powered subwoofer will complement any stereo or home theater sound system with its impressive bass output and compact size.This subwoofer utilizes the rugged Deep Channel Design (DCD) bass unit Every one is tested as it comes off the line to be within ?1dB of the lab reference unit, an incredibly tight tolerance. The amplifier has a built-in variable crossover that makes it easy to achieve a seamless blend with the main speakers, while a 24dB/octave lowpass filter prevents the subwoofer from being easily localized by ear, increasing placement flexibility. A crossover bypass function is provided for use with home theater electronics that perform their own bass management.Because of its high-powered amplifier and computer-optimized tuning, the XB4 is capable of impressive deep bass and high output from a remarkably compact enclosure. In addition, it features BassTrac, a proprietary Boston designed circuit that tracks the input signal to the subwoofer and prevents its amplifier from being driven into audible distortion. The benefit: the bass stays clean and strong at any listening level.Auto on-off amplifier switching and easily accessible controls make the XB4 subwoofer as convenient to use as it is exciting to listen to.