No, this is something completely different, very short and quiet popping sound that you mean is there, but it is really very short and extremely quiet. But what happened yesterday, was an extremely loud popping sound - this loud, that I was afraid it would damage my IEMs, so I have done testing with a very cheap model instead - every time I tried to switch class A mode. This popping sound was longer and much stronger. And of course the most important difference - there was no music at all after switching it on, but the player worked fine with economy mode.
Now it is still working, so let's see when this happens again, hope not too soon.
Now it is still working, so let's see when this happens again, hope not too soon.