Yes, probably: The reason for the delay is twofold: (1) Analog-to-Digital conversion happens in real time with a very slight latency, but if you also have to compress the audio for retransmission to multiple recipients over a (potentially uneven transmission rate) network, that takes longer because you have to scan over part of the stream to compress; plus (2) Each generation of wireless speaker will have its own delay to buffer before starting to play, so the source speaker must delay its own output until it can be certain that the slowest of its destination speakers will be able to play in sync.Line in audio delay without video processing in the loop does not make sense unless the B&O products have compatibility issues outside it's own ecosystem. In case, the documentation should state that or prepare people for more unpleasant surprise. Or did I miss something?
The Sonos systems have the same problem, and the same setting in their app to override multi-room transmission in favor of instant local-zone playback. You can imagine that a similar problem is at the root of the Roon multi-zone caveats: RAAT implementations can all be synced up, Chromecast zones can all play in sync, as can all AirPlay zones, but not any of them cross-protocol at the same time. You are right, the documentation should state that. Roon are explicit about this incompatibility. But B&O manuals have always been a travesty of icons & vagueness, so there is no reason to expect them to start now -- especially for a cross-brand experience that they have traditionally never wanted to encourage, much less support.
Makes me occasionally pine for the analog multi-room network: MCL was so straightforward: each zone had its own volume & mute, but the audio was at "electron speed"!
