This project was about acoustically rehabilitating a standard classroom of approx. 11 x 6 x 3 metres with the "Sound Optimizer" system.

This was achieved by installing 12 absorber elements at the edges of the ceiling and in the upper rear wall. The elements were mounted in one afternoon without having to empty out the classroom. Due to this fast possibility the classroom could be acoustically rehabilitated during the school year with-out having to interrupt lessons.

Due to the extraordinary acoustic absorption values of the "Sound Optimizer" used, the rehabilitation could be carried out within a reasonable budget which is in the interest of all school authorities.