Are any other users of these earbuds getting a high frequency hiss on the left bud, past a certain volume threshold?
On my unit, whenever I get to volume level/step 11 (out of an apparent 15) this hiss pops up on the left earbud, and remains constant all the way up to max volume. If I bring the volume back down to level 10, it goes away, or at least gets enough of an abrupt bum down so as to become inaudible. When there, it’s really apparent on quieter songs or during transitions with silence in the recording.
Really annoying, and a design flaw in my book.