Eventide BD600+Eventide BD 600 The Eventide BD 600 Broadcast Delay is a device used to delay broadcast audio for obscenity control. When activated this unit will delay programming up to 80 seconds in 8 second increments and fill with silence or recorded audio when obscenities are uttered. Panic A Secondary backup called PANIC is a WAV file stored on a compact flash card that plays while the delay is built in real time allowing programming to continue uninterrupted.