Sounds like a ground loop issue. You might have to mess about with it a bit.
sloth
joined 2 years ago
And it works!
These things are important when it comes to international products 🤣
Can I ask where you got them? I've got a pair of PMX-100 (the same only a neckband rather than a headband). Neither are made anymore so are a rare find.
I tried a pair yesterday (very briefly) in a shop. Way to much bass for my preference. Felt my eardrums move so much it was uncomfortable.
Fit was comfortable and the anc seemed effective though. Just not for me. I prefer balanced or mid forward.