Speakers (Studio monitors) start making a weird static noise after some time.

[wolfff]

 

 

 

As you can see, in this video i have put on some music and after a small while the static noise pops up and starts getting harder and harder.

 

I use a pair of jbl 305p mk2 speakers, a rode ai 1 audio interface.

 

All i did before this happened was me changing the whole layout of my setup so i re-plugged everything and changed positions and then this started happening.

 

What is wrong with my speakers? how can i fix this?