The field of application for our sound transparent fabrics is surprisingly broad. They also play an important role in organ building, for instance. It is quite possible that you will come across products from Akustikstoff.com when visiting a church, for example in Ahaus in northwest Germany. 

The pipe organ, whose roots reach back to antiquity, has played a central role in Christian liturgy since the Middle Ages. Elaborately designed organs are special treasures of numerous churches and impress with their enormous sound variety. Mozart once called the pipe organ the “king of instruments”. Like other instruments, however, organs need regular professional care and occasional restoration. For many parishes such a restoration project is a welcome opportunity to expand and redesign the instrument in order to broaden its musical range and move it closer to modern sound ideals. 

One example is the widely known Church of St. Mary’s Assumption in Ahaus, Germany: The local Catholic parish commissioned the old-established organ builder Orgelbau Fleitner from nearby Münster with extensive restoration and extension work. The task was to clean the old parts of the church organ, reassemble them, and make reasonable additions. 

Church organ in St. Mary's Assumption in Ahaus, Germany, with grey sound-transparent fabric from Akustikstoff.com.

A particular challenge for organ builder and voicer Eberhard Hilse, one of the owners of Orgelbau Fleitner, was to harmoniously adapt the appearance of the instrument to the church interior, which dates from the mid-1960s. Hilse chose our acoustic fabric to implement a visually appealing design without compromising its sound and acoustics. 

Completed in February 2018, the three-manual instrument is 9.35 meters high and boasts the impressive total of 2,520 pipes: The swell at the top has 772 pipes, the grand organ in the middle has 840 pipes, the positive behind the console 728 pipes. In addition, there is the pedal with over 180 pipes. The largest pipes belong to the principal 16′, which can be seen at the front of the organ and is assigned to the pedal. The largest of these pipes in the front left with a total length of 664 cm has a diameter of 250 mm and weighs about 105 kg.

Church organ in St. Mary's Assumption in Ahaus, Germany with sound-transparent fabric from Akustikstoff.com