buzzing comming out of my speakers

[ruriklego]

Whenever i turn on my speakers there is like a humm
it's a steady humm like i'm next to a high voltage thing
i can unplug and replug it several times to remove the humm but after 5 min it comes back
is there something wrong with my setup? did i break it?? CAN I REPAIR IT???
please help if you know something about this.
thankyou

 

[americanaudiophile]

If it happens without anything connected to the speakers then I suspect an internal problem. Could be a bad power supply so if they have an external one that could be bad.
If it only happens when they are connected then a ground loop might be the problem.
http/web.mit.edu/~jhawk/tmp/p/EST016_Ground_Loops_handout.pdf
https/www.amazon.com/Pyle-PLGI35T-8-Inch-Stereo-Isolator/dp/B004HJ35F2

 

[lucaswyrm]

Well, Sometimes Speakers Do That If There Is A Some Kind Device Really Close To It, Who Has A Electricity In It, Try Moving Speakers Elsewhere Or Nothing By Them...

 

[friedlander.m.s]

i can unplug and replug it several times to remove the humm but after 5 min it comes back

Not a ground loop.

Try a different pair of powered speakers.
The power supply in the powered speakers may be bad.

Plug in head phones. Do you hear the hum in the headphones?
UN-plug cable TV from entire house. Did the hum go away?

Sometimes Cable TV Cable internet can cause a hum also.