038 REPORT
REDUTA CONCERT HALL
Company: Fohhn Location: Bratislava, Slovakia
In Bratislava’s historic Reduta Concert Hall, home of the Slovak Philharmonic Or- chestra, Fohhn Linea Focus active electronically steerable line array systems have been installed by Centron in the main hall. The brief for the hall’s new sound system included a requirement for the loud- speakers to visually integrate with the architecture, as well as being able to provide direct and simultaneous coverage of both the stalls and balcony areas of the 700- seater performance space. Linea Focus LFI-220 systems, each containing 16 high performance 4-inch speakers, 16 Class-D amplifiers and 16 separate DSP channels, were wall mounted to the left and right of the main stage area. The slim, elegant 2.2 metre loudspeakers were supplied in a special colour to blend with the hall’s magnificent cream and gold décor. Two systems were guaranteed to provide sufficient coverage of the 27-metre long
UNIVERSITY OF GHENT
Company: Audac Location: Ghent, Belgium
The University of Ghent in Belgium has experienced a massive growth in the recent years, and to meet the growth expectations for the future, there was a great need for expansion. The first step in the expansion was the construction of two new auditoriums. One of them accommodates 600 seats, and the other one accommodates 400 seats. But what makes this whole construction special is the wall between these two super auditoriums which can be hidden into the ceiling. On the roof of the building, a large shark fin is mounted wherein the wall can slide, forming a super auditorium with 1,000 seats. In such a large auditorium, it is very important that the sound is intelligible through- out the whole area, but besides the sound quality, there were some additional requirements for this project. Because of the modern architecture of the building, the sound system had to be as discreet as possible, and it had to fit into the whole architectural entity. An additional difficulty was that when the large auditorium is divided into two sections, every section should have a completely separately controllable sound system. But when the wall is retracted into the ceiling, the two separate sound systems should be automatically linked together, forming one complete system for the large auditorium. The realisation of this whole system is achieved by using two fully digital audio matrixes, one for each section, which are linked together, forming one large system for the super-auditorium. For the best sound dispersion throughout the whole auditorium, various EASE computer simulations are made, and have proven that the best result can be
www.mondodr.com
achieved by using the two meters long GIAX designer column speakers, with two pieces installed in each section in combination with SX12 12-inch dual coil bass cabinets, both from Audac. The CS75 ceiling speakers were chosen to support the column speakers in the front section. The amplification of the entire project is provided by Q-Series four channel power amplifiers from Audac.
www.audac.be
hall for presentations and smaller musical events, with Fohhn XS-30 portable active subwoofers added for larger performances. Fohhn’s Dual Beam Technology enables each Linea Focus loudspeaker to generate two separate beams within the vertical axis. One beam from each loudspeaker was programmed to directly target the stalls, while the other beam targeted the balcony, providing the entire audience area with direct, even sound coverage. A specially developed Fohhn algorithm, de- signed to suppress unwanted side lobes in the beams, also ensures highest levels of speech intelligibility and crystal clear reproduction of music throughout the hall. The beam steering capabilities of Fohhn Linea Focus systems make the line arrays highly suited to a range of architectural installations. The loudspeakers’ vertical sound inclination angle and their vertical beam width can be adjusted in real time, in increments of 0.1°, using Fohhn’s intuitive Audio Soft control software. This enables the system to be easily adapted to any changing acoustic conditions. For the concert hall, various presets were programmed enabling each speaker beam to be switched as required. With public safety another important requirement, the loudspeakers have also been integrated with the hall’s internal evacuation system.
www.fohhn.com
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