The MusicCast system from Yamaha is the test winner in most reviews. Especially in terms of sound quality, it is 1A.
In addition, you can adjust the tuner of each box individually according to your own taste.
I am very satisfied with my components.

Unfortunately, neither I nor my colleagues in the immediate vicinity have any specific experience with these two products. However, I have forwarded this to the community so that we can hopefully stimulate an exciting discussion here.
@Community: What do you think?