Barcelona's opera house, the Gran Teatre del Liceu, fulfils its role as a culture and arts center and is one of the symbols of the city. To invite people to get closer and to be attracted to follow a theatre tour, the museum needed in audio installation on the street side of the building.
Because there was no way to get the audio source outdoor, the installer has chosen for 3 pairs of SDQ5P-BL with the audio feed by a wireless set. The result is impressive and now people can hear the opera while they walk Las Ramblas.