Hello everyone , I am Mustafa from İstanbul  first of all , I am a new user in this forum and my english not good but I understand everything which is clear and simple    anyway :)     I confused because I want to buy good headphone which is balanced ( bass,mid,tiz ) plus good build...

first of all , I am a new user in head-fi  ,  my name is Mustafa from İstanbul    my english not bad but I can understand everything whis is not musical term  anyway , here is the my problem ,   there is a ( low-high) gain but I want to make medium gain in my fiio x3 player so How can I do...