ACS systems are installed in high profile concert halls, theatres, churches, schools of music, university auditoriums etc. around the globe.

Below an impression of halls using ACS systems for variable / improved acoustics.

In the Reference-list.pdf you also find information about a number of installations.

Ottawa, On, Canada, National Arts Centre 

Since the year 2000 the prestigious National Arts Centre, has been successfully using an ACS system. Offering musicians and audiences high quality acoustics for this leading Canadian institution. After many years of successful and hassle free operation in the decision was made to upgrade the system’s processing to today’s standard. In 2016 ACS staff replaced the “heart” of the ACS system. In 2018 the NAC replaced their orchestra shell., ACS loudspeakers and microphones were incorporated in this shell. After the system was tuned it again became part of of the integral acoustical solution


Church of the Resurrection, Leawood, KS, USA –  “Create a sense of Majesty

This 3500 seat church has a relatively short reverberation time. By adding early reflections ACS improves clarity and transfer of sound throughout the hall. ACS can be used to support speech and different reverberation times can be selected for the supportive (church) acoustics for congregational singing, choir, organ, modern music, etc,… either amplified or un-amplified. 40 microphones record sound. choir, chancel, main hall, under and over balcony area’s are all accurately covered assuring that the hall becomes a true acoustical unity. The processed sound is rendered over 120 loudspeakers mounted (as good as) invisible at strategic locations in the hall. 


Doetinchem, the Netherlands, Amphion 

The Amphion,in the Dutch city of Doetinchem, has ACS installed in both their 860 seat theatre and 300 seat flat floor hall. The variable acoustics allow for a wide range of performances, like their well established classical music program. The very well visited performances show the success of the “ACS approach”


Winnipeg, MB, Canada, Centennial Concert Hall 

Because of its size and (mesh) walls the Centennial Concert Hall lacked early energy. And orchestra playing felt distant and lacked clarity , also the reverberation, although present was low in level. The ACS system installed, solved these flaws. The ACS electronic orchestra shell, also part of the installation, improves the ensemble playing conditions for the musicians on stage and also took care of an improved projection of sound towards the hall.

Delft the Netherlands, Auditorium University of Technology

In the auditorium  an ACS system using 24 microphones and 60 loudspeakers enhances the acoustics by adding both early reflections and by making the reverberation time variable within a range of 1,1 through 5 seconds   (RT60 @500-1000Hz)