Studio communication system

This desktop talkback/IFB unit enables the director to talk to the talent, wearing an earphone. An auxilliary input is available, that allows program audio or mix-minus audio to be send by default.
This audio is interrupted and switched to microphone input by pressing the button on the unit.
You need earphones when using phone-in or skype, in order to prevent echos.
When you need more earphones, an distribution amplifier like Behringer HA400 can be used.