Hi, i seek some info about high gain feature on fiio x3. I thought it just adds more volume for high impedance headphones, so i ignored this feature but recently i did some listening and find out, that i like sound of my es10 (portable closed 42ohm hp with 53mm drivers) more with high gain.
1. How could this be? What high gain exactly means from technical perspective? Something with higher voltage?
2. Does high gain drains more battery than low gain on same loudness level (not volume level)?
3. Does somebody else like the sound more with high gain? If so, what headphones do you use?