Hi I finally made the call and replaced the Beo4 with a Beosound Essence MKII together with a BeoLink Converter NL/ML. Problem: How can I join / play the Airplay source (from Beosound Essence) in the Masterlink rooms? Example: Airplay plays in the living room, I would like to join the kitchen to it (IR Eye with Play button). Radio works as expected, I can press Radio in any Masterlink room and it plays the B&O Internet Radio. Config: NL/ML Converter as Audio Master Login to view image Login to view image Which one is the Airplay source? Nothing seems to work, everytime I hit A.MEM, the Airplay from Essence stops playing. Login to view image My workaround: Connected now the Airport express to Line-In of NL/ML Converter, and then Beosound Essence can join that with a long press on the Essence remote - not 100% intuitive :( Old setup: Login to view image https://forum.beoworld.org/forums/topic/guidance-on-masterlink-system-with-10-link-rooms/