Sonifex AVN-PD8D - 8-Input 8-Output AES3 to Ravenna / AES67 Interface (with Display)The AVN Portal series is a group of three powerful audio mix engine interfaces (AVN PA8, AVN PD8 and AVN PM8) capable of audio routing, metering and equalisation. They have both physical audio I O and AES67 stream I O and can mix and route freely from any input to any output, useful for a multitude of applications. Communication between products is via RAVENNA AES67 AoIP allowing simple CAT 5 cabling and expansion. They advertise streams using Avahi