Having a strange hissing problem with my Mu-so Qb. I have seen others report it, but no solutions to remedy it.
When I power the speaker on, it produces an extremely quiet hiss, at a level I would completely accept and is very very quiet. The hiss does not scale with the volume setting.
As soon as music is played, a much louder hiss is produced. It doesn’t matter what the source is, I’ve tested it with radio, analogue input and Spotify, they all produce the hiss. Again, it does not scale with volume, but it’s audible about three meters away when the music is quiet.
Have tried with different sockets and plug orientations. Convinced this isn’t hardware, as it appears to happen only after music is played.
Anyone else observed this and have any ideas?