Question Amplified speakers causing surge in PC

Apr 7, 2019
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Hello there,

My Microlab B72 speakers (specs below) generate an electrical surge when I turn them on, causing my PC monitor to quickly turn off and back on. I noticed that the 1/8 jack used to plug the speakers into the computer has electrical current in it. I can feel a little buzz when touching it with my fingers.

I tried contacting the manufacturer without success. It's worth mentioning that the speakers do not have a ground. The power jack is the typical two pins 220v used in northeastern Brazil. I tried inverting it in the outlet of the surge protector power bar. What can be causing this surge and what can I do about it?

Thanks in advance.

Speakers specs on manufacturer's website:
http://www.microlab.cn/product_detail.asp?id=375&bigclassid=15&smallclassid=71
 
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