Public address system block diagram in detail AutoCAD drawing, dwg file, CAD file

This architectural drawing is Public address system block diagram in detail AutoCAD drawing, dwg file, CAD file. In this drawing there were power supply & distributer, Auto charger, battery, fire sensor, control unit, terminal board, mixer preamp, compact disc player, cassette deck, etc. are given with details. For more details and information download the drawing file.