
EUR557,05
Marantz M-CR612 Melody X
2.1 Channel, AM, FM, DAB+

Marantz M-CR612 Melody X
2.1 Channel, AM, FM, DAB+
I recently treated myself to one. Unfortunately, after about 30 minutes of active running time, regardless of the input source, an annoying whistling sound comes from the system (not from the speakers). I have tried everything, unfortunately without success. What could be the cause? Is the unit defective?