IFB Control Panel with Microphone Jack (6.3" X 1.7"), for console or optional rack mount.
The MA-704 Master Control/Talent Access Station provides individual access to four talent channels, and "ALL IFB" access to all the IFB channels in the system. It contains the audio line-driver circuits. One MA-704 is required at each talent access control location. It is designed for stand-alone operation or for direct console mounting.