The three-way Synergy Series Premiere KSP-400 powered tower was first introduced in 1997 and manufactured by Klipsch until 1999. While no longer in production KSP-400 model loudspeakers 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.