Acoustics First® Quadratic Diffusers (Model Q) provide balanced sound throughout a performance space and help reduce excessive sound concentration or “hot spots”. Undesirable specular sound reflections from flat ceilings are eliminated without resonance or excessive dampening. The wells of the Acoustics First® Quadratics are angled to extend the units range and scatter higher frequencies that would otherwise reflect in a straight line-of-sight path, back into the room.