Meaning of Electroacoustic System (EAS)
The history of Public Address (PA) systems dates back to the early 1920s when the first attempts were made to transmit audio signals over electrical lines. In the 1930s, companies like Siemens and Telefunken began developing PA systems for use in public buildings, factories, and other commercial facilities. However, these early systems were still quite primitive and could only transmit simple voice announcements. In the 1950s and 1960s [...]
