Reli said:
Oh, that is just a Record Mute switch. Nobody ever uses it.
Chordeater, what kind of device are you trying to play? An iPod? Make sure the iPod's charger is not plugged into the same outlet as the boombox, or it will make a "buzz" sound.
Record Mute, OK, thanks ViennaSound for your help.
I tried to play music from an external soundcard (UA-25EX) and from my smartphone, with same results. BUT ... there's an electrical workshop near my job dedicated to TV repairing mostly, and the technician have opened the boombox searching for bad contacts and the likes. Since he have found it's difficult to dissasemble, he hardly checked anything, but something happened after all, because this evening I was listening to the SuperSound 16000 without the awful buzz, only a slight and reasonable hiss.
And yes, it sounds very good for his size
