High pitched tone at startup?- stops after 10 minutes or so


Even without connected anyting, just the power cable and my headphone, there is a anoying high pitched tone. If i have connected speakers: i will sound through the speakers. After a while it is gone and kt works perfectly :)? I tried to plug into several sockets.

Who reconizes this? - how to solve?

Greetings from The Netherlands,


Hello This sounds like a technical issue, our technical support team will be able to assist: https://denondj.com/support