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AES-15-1991 (PA-422) Standard Communication Interface for Sound Reinforcement Systems

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AES15-1991 (ANSI S4.49-1991): AES Recommended practice for sound-reinforcement systems-Communications interface (PA-422) standard has been in existence since 1991 September. This paper describes the history of the development of the standard. The chain of events and the technical aspects are the main subjects covered.

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