Lighting, Projection, Sound Systems School auditoriums and theaters are being built and upgraded with modern lighting, multi-media projection and sound systems. Special lighting requires circuits, wiring and switchboard controls. Video and computer projection systems, recording equipment, CD and tape playback systems, other audio/visual equipment, microphones, public address systems and video conferencing equipment are found in many schools. Audio systems, lighting and electronic scoreboards are installed in many gymnasiums and at athletic fields. © 2004 The Hartford Steam Boiler Insurance and Inspection Company.     All rights reserved.