Events :: 5. October 2016

Bittner Amplifiers Power Variable Room Acoustics in the New Multifunctional Hall of the Congress Centrum Alpbach

Bittner amplifiers power an Amadeus Active Acoustics System in the new Elisabeth-Herz-Kremenak plenary hall at the Congress Centrum Alpbach (CCA), Austria. The variable room acoustics and 3D Audio system turns the hall into a truely multifunctional venue for lectures, galas, and high-quality concerts like symphonic concerts or church music. The hall seats up to 750 visitors. In the back of the hall, three separate seminar rooms may be created by dividing walls.

Amadeus Active Acoustics is a modern regenerative acoustic system. To create a natural impression, the system not only has to be well designed and tuned by an experienced team of sound and system engineers and musicians, but also needs appropriate system components.

In the plenary hall, three Bittner 8X200 amplifiers power the speakers in the front ceiling area of the hall, three 8X100 amplifiers are assigned to the wall speakers and an additional two 8X100 to the ceiling speakers in the divisible back area. A Bittner 4X600 DUAL amplifier is used to drive the subwoovers. As loudspeakers, 18 CFX61 and 22 CFX41, four CFX12S subwoofers (all Renkus-Heinz) as well as 18 Atlas Sound FAP63T ceiling speakers are being used. Signal transmission to the Amadeus processor is via four Atlas Sound Dante BlueBridge processors.

The Amadeus system has been set up for six different types of events: Off, Opera, Small Orchestra (optimized for Mozart), Symphonic Orchestra, Church Music, Sacral Music. The parameters are stored as presets that are selected by a simple touch on the customized web interface.

The system was ordered by Alpbach Tourismus GmbH and the CCA. Distributor of the Renkus-Heinz and the Amadeus system is MediasPro, Eckersdorf, Germany. AV Technik Waidhofer, Judenburg, Austria, supplied the Bittner amplifiers to PKE Electronics AG, Vienna, who was in charge of the system technology and installation. Dipl.-Ing. Jamilla Balint, TU Graz, designed the room acoustics. Rohde-BeSB, Salzburg, designed the electroacoustics and produced the 3D Audio sound scenes.


  • © Magdalena Stranzinger

  • © Magdalena Stranzinger