Barrel & Pyramidal shaped wall and ceiling diffusers are used to scatter and redirect noise energy to eliminate dead spots and provide a uniform listening area throughout the room. This makes diffusers ideal for Music Rehearsal, Music Performance, Auditorium, Theater, Choral and Band Rooms. Constructed of ridged E-glass and molded into one piece shapes to provide high impact strength and hardness with light weight. Essi offers standard 20 Barrel Shaped sizes and 3 Pyramidal Shaped sizes. Standard White Gel Coat, Paintable Gel Coat or Fabric finish allow coordination with adjacent absorber panels. Optional (IA) Internal Absorber increases absorption at all frequencies or (IL) Internal Liner increases reflection at all frequencies. A variety of available mountings allow installation virtually anywhere within the room.