DDJ 1000 Headphones Noise

Hi,

Today i get my new Pioneer DDJ 1000, and all was amazing, but when i was in a quiet room and put my headphones on i noticed a electrical noise. I unplugged all the periferals and left the ddj 1000 with only the power brick and headphones conected, the noise still there.

I read in another thread about people who have the same problem as mine, but i can't reply to that thread. 

So i want to know, this noise is something normal on this unit, or i have a faulty one?????

here is a link to a sample that i recorded with my audio interface, obiously the audio is boosted to listen clearly the issue.

https://drive.google.com/open?id=1nhOEVELwKh3qsuPsQqESxmmlbMAsMFpn

Thanks for your answers.