One is supposed to to be able to tell the difference? in behaviour though im finding so.
BL20 late version connected to avant 55
When in Wisa, if one has an option (as i do) for TV speakers only, the beolabs still illuminate, although they are muted ( but can here a slight hiss from tweeters)
Also if using Netradio or any device needing the internet, its seems that sometimes it says internet disconnect when it isnt.
When wired they behave as they should, ie not switching at all when calling for TV speakers only.