If it doesn’t hum don’t worry about it.
I wouldn't. But it does.
Can get it so the hum is generally low level but it's enough to bug me and a bit too easily prone to an accidental displacement for my liking ... Any suggestions welcome 😀
What happens if you touch the earth against an exposed bit of the negative RCA?
Edit: nothing I suppose. Duh.
@goodhead started
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If it doesn’t hum don’t worry about it.