Which device is associated with IFB in this material?

• A. RTS PS20
• B. Key Panel
• C. CRAS Console
• D. RTS 4030

Answer: (D)

IFB stands for interruptible foldback, the private cue channel that lets on-air talent hear a producer or director without the audience hearing. In this material, the device described as handling the IFB feed is the RTS 4030. It’s part of the RTS intercom family and is used to route the cue audio to the talent’s headset, enabling talkback and cues. The other devices serve different roles—PS20 is another RTS station type, the Key Panel is a control surface for selecting sources, and the CRAS Console is the main mixing console. None of those are described as the IFB device in this context.