Seis Akustik created a new audio concept for the church. A digital audio system SDA290pro is now the heart of the system. In addition, 8 coaxial line array speakers, high quality condenser microphones and professional UHF radio microphones ensure good speech intelligibility for all church visitors. The DSP amplifier SDA290pro corrects the sound propagation time (delay) in the church room and optimizes the sound radiation of the loudspeaker systems.
As early as 1981, the attempt to give space and a hearing to the protest movement against the stationing of medium-range missiles, which had just emerged in East and West, was successful in the Nikolai Church with devotions in the chancel of the church. Ultimately this was the birth of the Open City Church. The Prayers for Peace, which were later held regularly every Monday, were of great importance for the preparation and implementation of the peaceful revolution in autumn 1989, with the core date of 9 October. And, what still amazes the visitors most today, where the separating cord to the chancel is expected, we find the sign: "We invite you to the chancel".
As part of the comprehensive renovation of the Nikolaikirche, Frank Simon, head of the Seis Akustik branch in Berlin, provided the tailor-made concept for the renewal of the electro-acoustic transmission system in consultation with the community representatives and Pastor C. Führer. Two remote-controlled SDM8-2 digital automatic mixers with the latest DSP technology, developed by Seis Akustik, now form the centre of the new system. In close cooperation with the head of the ecclesiastical building authority and the monument protection authority, the loudspeaker technology was also revised.
High-quality condenser microphones from the Seis Acoustics "Design Series" were used for the renewal of the microphones. Our special microphones from the newly developed "Design Series" blend particularly well into the existing ambience with their high-quality surfaces such as stainless steel and brass.
Pastor C. Führer was very satisfied with the new transmission technology:
"The simple operation of our digital amplifier system quickly proved to be a great advantage for us. In practical use, the quality of the installed sound technology became immediately clear thanks to the true-to-life, easily understandable speech reproduction achieved".
The Seis Akustik - Technik installed includes an automatic transmission system with design condenser microphones and sound forming loudspeaker systems, which were specially developed for use in acoustically demanding church rooms. Up-to-date hearing aid technology according to DIN EN 60 118-4 completes the high-quality equipment.
The early Romanesque Merseburg Cathedral and the Merseburg Castle stand on a plateau on the left bank of the Saale. The town gained supra-regional importance in the 10th/11th century, after Heinrich I, who was the first German king to rule from 919-936, had taken it over by marriage. The diocese foundation was then only established in 968. But already in 981 the diocese of Merseburg was abolished again. After the refoundation by King Heinrich II in 1004, Bishop Thietmar of Merseburg himself laid the foundation stones for a new cathedral building on May 18, 1015. The disposition of the early Romanesque cathedral has remained decisive to this day despite several alterations, although the nave was transformed into a late Gothic hall under Bishop Thilo of Trotha (1466-1514). While the early Romanesque spatial conditions can only be imagined with difficulty after profound alterations, they can still be experienced directly in the early Romanesque crypt.
The Barlach town Güstrow impresses with its old town of half-timbered and brick Gothic. Apart from imposing town houses, magnificent Renaissance buildings and the classicistic town hall, its cathedral, consecrated in 1335, which still has Romanesque features, is particularly worthy of mention. Worldwide famous is the figure "Der Schwebende" ("The Floating One") by Ernst Barlach, a memorial for the victims of World War I, which is located in the north nave of the cathedral. The insufficient speech intelligibility for church visitors was now the reason for the responsible persons to deal in detail with the renewal of the transmission technology. The specifications for the new system technology in the cathedral were provided by an acoustic room expertise carried out by a team from Siusi's Acoustics Department on behalf of the cathedral parish. The subsequent simulation carried out with the "EASE" program provided the specifications for the loudspeaker types to be used. Project manager Frank Simon from Seis Akustik convinced the cathedral parish with a test run of a digital audio system developed and manufactured in-house. As the price-performance ratio was also convincing, the decision for the new system was made quickly. The newly developed SDA290pro DSP matrix amplifier, high-quality K9 condenser microphones and line array speakers from the CX series were used. Listeners with hearing aids can participate in the service "barrier-free" via an inductive hearing system.
The cathedral of Halle is the oldest existing church building in Halle an der Saale. The sacred building, located on the edge of the old town, was originally founded by the Dominicans. Since 1688 the Reformed congregation has found a home in the cathedral. The Great Elector Friedrich Wilhelm von Brandenburg gave the church to the congregation "for eternal use". When the persecuted Huguenots came to Halle, the German and French Reformed formed a considerable minority in the city with its own grammar school and retirement homes, with services in German and French. Today there are about 250 parishioners spread throughout the city and the surrounding area. The distances are long, but many take it upon themselves to come to church. Seis Akustik provided the audio concept for the renewal of the loudspeaker system in the cathedral. An SDA290pro digital amplifier system, special CX series loudspeakers and modern UHF radio microphone technology now ensure good speech intelligibility in the demanding church interior and are the solution to the long-standing acoustic problems of the parish.