The Cogeco Amphitheater is a 9,000-seat open-air amphitheater positioned between two rivers. Without acoustical intervention, the sound would leave the stage and quickly fade. Octave was hired as the acoustics consultant to project the sound out effectively. The strategy chosen was to use the lower level walls and electronics to project and reflect the sound. At the same time, the monumental iconic red roof line would then dampen and absorb the sound to avoid echoing. AMICO perforated aluminum is used as an acoustically transparent protective façade surrounding Rockwool fiberglass acoustic panels designed to absorb sound. The aluminum was able to benefit the project because it could protect and extend the life of the acoustic panels in the harsh, humid environment that varied from -30°C to 30°C, as well as take on color to create the exemplary red structural form that architect Atelier Paul Laurendeau so keenly designed.