I know have read every page on this forum. But i really think lg should come with a solution to this. Even if there has to be 2-3 warnings so people who want to destroy their ears can't sue them. But that will take forever.
Thats why i wondered if anyone was making an app to chose the power of the output. It should at least be made tbh.
IIRC the gain selection is based on the ESS Sabre 9602c and not user selectable. Creating a work around defeats the purpose of the entire chipset implementation...
I ran into a similar situation with my RHA MA750i not being able to reach desired volume (due to inline mic/controls no fault of phone or IEMs) and so I was faced with a decision, external amp or new headphone pairing. Stacking an external amp definitely contradicted my original reasoning for purchasing the LG V10 so the (joy of) headphone hunting began.