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The Synergy Series KSW-150 subwoofer was first introduced in 1996 and manufactured by Klipsch until 1998. While no longer in production KSW-150 model subwoofers are still owned and listened to by Klipsch fans around the world as part of two-channel audio and home theater surround sound systems. To connect with other people who are passionate about audio and interested in Klipsch products visit our open forum bulletin board.