The very famous old Weimar hall was replaced by a new building with a concert hall in 1999. The new hall is also used as a multi-purpose hall for various activities such as concerts, musicals, pop concerts and conferences. The media design includes sound and video with computer based connections. The hall contains a sound system with hidden speakers above the stage and in the back part of the hall although the ceiling is about 12 meters high. The reverberation time of the hall is approximately 1.7 s in a closed smaller room compared to around 2.2 s in a more open space created by moving walls. The sound system was designed for the long reverberation time. In addition, the Weimar Hall houses a conference center for which the sound system also had to be designed. The different systems are connected through a digital routing system based on fiber optics, including the control rooms. This hall is now used for many events. The paper will describe results and experiences.
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