I woke up this morning to an annoying buzz

I purchased these for my shop and two weeks after installing I now have a loud buzzing coming through all of the speakers.

We had return the first set because they started to distort and there was an unbearable low frequency buzz constantly even when the system was powered down in the sub

but I have only had it for 2 months and now all speakers are making loud buzzing

Just got it kess then 15 minutes ago, set it up and already there is this annoying slight buzzing in the speakers

I turned off the system and the noise disappeared and I turned them back on a moment later and they were working fine until 30 seconds later the buzz came back and overwhelmed all other audio until everything was inaudible

good sound good quality for thee price friendly set u and user friendly