hey guys finally got my audio-technica ath-m35 from dealer himself(will post the pics in show off section soon).when i connected the headphones to my samsung galaxy note 2 the volume which i got was too low even when the cellphone's volume was full.so why is it happening?do i require a headphone amplifier?if yes,then after adding the amplifier will volume and bass will increase?and if i add the amplifier to my computer will the performance increase even more?if i need an amplifer,please tell me which one should i go for?and how does a amplifier functions?i mean does it runs on battery?thanks