Designed in early 1900 by engineer Ramos de Azevedo, in concert with Italian architects Claudio Rossi and Domiziano Rossi, Theatro Municipal in Sao Paulo Brazil is considered as one of the most important cultural venues in South America.  It is home to the Municipal Symphony Orchestra of São  Paulo, the Municipal Lyrical Choir of São Paulo, the City Ballet of São Paulo, and the String Quartet of the City of São Paulo.  In addition, the venue also has a long tradition of hosting prominent international opera companies.

In the Adelaide Festival Center Theatre, independent E-coustic Systems processing is incorporated in both the house and the stage. This allows the venue to successfully present Opera and Ballet with the orchestra in the pit, and Symphony with musicians positioned on the raised stage extension. The stage system can be adjusted independently from the house, and provides a uniform sense of hall return throughout the stage area. The renovated Theatre with E-coustic Systems installed debuted Wagner's Ring Cycle, which was met with high critical acclaim from reviewers worldwide.

The Amsterdam City Opera is a modern structure with a wide seating area and two rings that provide good site lines to the stage. The venue has aocustics that are excellent for speech, but envelopment is lacking for orchestra. Two LARES mainframes are used, one for the ceiling array and one for both rings.