Not sure I can help much - I think I'd only duplicate the things you found from your own simple search. Did you see things like these?
https://www.youtube.com/watch?v=PipmCtjnus4
https://www.youtube.com/watch?v=N5pJc7_2Usg
https://www.youtube.com/watch?v=BrvETLjKloY
Loads more out there: Just search the Internet for - say - "clean Bose wave system "
,mnkjb
February 2019