The MS-704 is a 2RU four-channel main station with programmable front panel buttons, individual channel short-circuit protection, individual channel volume control, and a regulated fail-safe power supply.

• Supports up to 55 beltpacks or 10 speaker stations on 4 channels
• Automatic short-circuit protection and reset with LED indicators
• Visual and audible call signaling
• 3 interruptible IFB channels
• Individual volume controls for each channel
• Program feed to both channels with selectable Program Interrupt
• Remote Mic Kill
• Stage Announce with relay
• Channel A & B Link switch
• Built-in speaker
• Universal voltage power supply