First of all, sorry for my bad English.
Well, It’s difficult to find some documentation about this amplifier. I’d like to use it with a RPi 2 B+ and some headphones; i own lots of in-ear earphones and a pair of over-ear headphones (Sennheiser HD598). My question is: do I really need this amp to drive in-ear earphone or over-ear headphones?
Thanks guys =)