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Buzzing issues iems
(sh.itjust.works)
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Sounds like a ground loop issue. You might have to mess about with it a bit.
https://www.head-fi.org/threads/how-do-i-get-rid-of-a-ground-loop-with-my-pc-amp-what-exactly-am-i-hearing.927116/
a powered USB hub works great as well if you don't mind the bulk and extra cables.