Chosen Solution
The head phones are fine when anc is not turned on. But when it’s turned on, A hissing crackling sound with some ringing comes up. It sometimes happens when I tilt my head to my right. Any ideas on what the problem is and how I could fix it?
I have had 3 750NC’s, all of them have ended up like this. I will no longer buy JBL products.
Possibly a dead driver or a wiring issue.
It is almost like there is dust in the internals of the headphones, for me at least. I am really happy with my headphones other than this.