RUBY-400 is the main station of an intercom system with built-in power supply; it provides 4 individual channels and 4 independent IFB outputs. Each channel has independent power supply output and short-circuit protection. It can support up to 20 sub-stations. Featuring powerful functions, perfect voice and simple operation, RUBY-400 is ideal for studio, master control, OB vehicle, entertainment, education, and enterprise.
