Hi everyone, lately I’ve noticed that whenever I use metal bodied IEMs (like the latest Xiaomi Hybrids and KZ ZSA) attached to a device that doesn’t run solely on batteries, I feel pain in my ears from what I believe are tiny electric shocks. This doesn’t happen with any of my full sized headphones nor plastic bodied IEMs. For example, as long as my iPad runs on battery I’m fine, but the moment I link it to the charger the tiny shocks occur (and here comes the surprise: I thought the battery acted as a “stabilizer”, but I guess I was wrong (oh well, it wouldn’t be the first time). And since my Schiit stack runs from my mains, the same exact thing happens). Have you guys got any explanation for this phenomenon? I actually am a bit worried about it, since it surely can’t be good for my ear canals. And if it was due to an instability in my main power (the house is very old), what could be a solution?