Arkport CSD had an interesting problem. They were running a significant performing arts program at the high school with no real auditorium. Funding was designated for a volleyball gymnasium but not for a performing arts space. When AVL Designs Inc. was brought into the project, the room had already been designed as a hexagon with seating on four sides for volleyball. The intent was to add a stage on one side of the space, with full fly and theatrical capabilities. It was decided that seating from one side of the space would be removed. Next, the big challenge was how to get the acoustics to work in this oddly shaped concrete block space. AVL Designs Inc. decided to use extensive application of RPG diffuser block, which is a mathematically correct acoustical diffusive masonry system. The combination of this block with a specialized acoustical roof deck, some sidewall reflective elements and an offstage eyebrow – to protect lighting and provide projection into the room – produced a very nice acoustical condition. All of the RPG block was unfinished, which is crucial. Unfinished concrete masonry units have good absorption properties over a wide range of frequencies. Combined with a quality sound system and theatrical lighting package, as well as stage rigging and curtains, this performance venue has had rave reviews for many shows. With the open structure, they are able to fly people for stage productions such as Peter Pan and work with companies like ZFX.