Re: How to quiet humming speakers?

If you short both the tip and ring to the sleeve it should not buzz loudly.
You're right. I now unplugged the minijack and shorted all three parts
of it, and the humming WENT AWAY completely. When I removed the metal,
it started humming again.

Then I plugged it into my (cheap old) MP3 player instead. It still
hummed.
I powered the player ON. The humming STOPPED. It also didn't hum while
playing.
I stopped the player. No humming.
I powered the player OFF. The humming is there again.
I unplugged the MP3 player. Still humming.
I plugged the speakers into my audio unit again, and now it doesn't
hum!

I also noted that plugging/unplugging the minijack in my audio unit
creates that brief, loud buzzing, but plugging/unplugging the minijack
in my MP3 player gave no loud buzzing.

Does this indicate a poor connection inside my audio unit??!
I hope not because it was expensive, but if so then I would get in
touch with the manufacturer (www.slimdevices.com).
I have several of these audio units, so I just tried swapping in
another one. Turns out it's the same there: when plugged in, the
speakers are quiet only if I wiggle the minijack a little, otherwise
there's a little humming. And WHILE wiggling it's making a buzzing
noise like hell.


Thank you all for your help so far! I hope you can answer this too.
-Torben

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