Without tricks I had, however, at higher volumes also quite a buzz and if I have all turned up to reduce the output power of the MP3 player, a channel was completely gone.
I then tried out the recommended here Trick (Thank you!) With the scotch tape on the scanner, making it the hum almost gone (except if it's tomorrow has degrees below zero and everything is cold) and by the now normal output level of the player to come both channels well. The sound is also convincing. Throughout a recommendation.
