Specifications include, but are not limited to:. 71555 Motion Pictures (See Class 475 for Medical Training Films) Screens: one 40’x20’ Inflatable Movie Screens shall be installed and anchored with a minimum of 3,000 lbs. of ballast at each of four points on each screen totaling 12,000 lbs. per screen. Screen surfaces shall start no lower than 7 ft. above ground level to allow for unobstructed drive-in viewing. Projection/Audio Processing: one 12,000 Lumen Projector with lenses for a 250 ft. throw or better. Vendor shall additionally provide at least one back up projector in case of failure. Audio processing shall be an FM broadcast and include mixers, folded dipole antennas LCD video monitors, video over cat 5 distribution system for 350’, and professional rack mounted DVD players.