Trombon COPC-AU Power Amplifier, Version H for Public Address Systems

The subscriber amplifier, in combination with other components of "Trombone SORS", is designed for construction of loudspeaking communication systems (HCS). AU provides reception of dispatcher's voice messages, their decoding, amplification and transmission to subscriber loudspeakers. The dispatcher uses another component of the Trombon SORS system - the Trombon SORS-PD dispatcher console - to transmit voice messages. Messages are transmitted using the main component of the Trombon SORS system - the Trombon SORS-LBS line communication unit