I’m also leaning towards the 28 being an 18 successor rather than 20... it would be too confusing otherwise haha. It would make a lot more sense for the 20’s replacement to be called 30. Definitely looking forward regardless though!
Are you talking about B&O's numbering making sense..? Why? It never has 😕
Once Beolab 1 was the top speaker - then came BL 5 - and then the BL 9, as a cheaper alternative to the BL 5 (maybe the "real" sucessor of the BL 1).
The sucessor of the BL 9 was then called BL 20. Not much sense here 😁
My B&O Icons: