MPA-1100 Series Loudhailer Speakers, Microphones, and Amplifiers with Public Address applications. (MPA-1100, Loudhailer System). The MPA-1100 series Loudhailer is a multipurpose device that is used as a ship to shore hailer, ship to ship hailer, foghorn, audio amplifier, intercom, and/or alarm system. As a loudhailer, it amplifies the sound through the speakers to a 200-400 […]
