Located in Rzgow near Lodz, Mandoria is the largest indoor theme park in Europe and the only family theme park in Poland entirely styled as a Renaissance commercial city. Initially opened on the area of 15 thousand square meters, it will ultimately cover 50 hectares of terrain. The aim of the system was to provide a unique audio experience both for background music but also for a number of special sound effects which are intended to evoke specific emotions in visitors. The task was not easy due to lack of any acoustic adaptation, large ceiling height (even over 10m) and huge open space with a lot of additional noises such as carousels or roller coasters. Customer was looking for the top quality which would be confirmed by initial and extended audio tests on site between different integrators. And most important – the speakers had to be as discrete as possible – after all, there were no loudspeakers in Reneissance.