Originally Posted by AmberOzL
Getting warm is because of the amp power I guess, the more powerful the amp, warmer it gets I think. I am not sure though, don't count on me. Maybe best is asking to James.
yes, it is because the amp power. and it will not so hot if you use the line out or digital out of X3. also it depend on the impedance of the headphones and the volume too.
anyway, it will be more easy to share it like " it is hotter than an Galaxy S3 when playing XXX " , and it will not hotter than most dual core Android phone if you can trusted me and not to talk compare with
some other DAP which have even bigger power output and a desktop DAC inside.