The folks at Lamb’s Fellowship of Murrieta wanted a plan for do-it-yourself acoustic treatments for their new building.  The budget was very low, but there were willing laborers, so a solution was found utilizing them to the fullest.  I came up with a basic design using easy to construct OC 703 absorbers and half round cardboard diffusors.  All treatments were to be covered with fire retardant fabrics. 

Rick Koralewski came out for a Saturday and got them started on the project.  The volunteers completed the room on their own, and reduced an overwhelming reverb time to a manageable one.