My home network is simple. I have a cable modem and wireless router. I have an airport express in client mode hooked to a stereo. I use MacOS and IOS devices to Airplay music to the stereo. I do not need multi-room functionality. I am worried that I will loose this functionality under Airplay 2. Now that 11.4 beta has been released, does anyone have experience with this kind of setup that can let me know if it is working or not? How does Airplay 2 work with older devices like the Airport Express? Thanks.