Just wondering what portable sources folks use with their headphones. I have Samsung Galaxy S android phone which is my main mobile music source, also have philips Gogear clip on mp3 player for when out running or cycling. Also have an Ipad (1st version) which i have never used for music, but will try it out as have just ordered my 1st set of full size cans....Shure srh440, so looking forward to seeing if my existing sources are ok or I should be looking to improve that too??? Also ordered the Fiio E11 amp too as this seems to be getting great reviews and for me was a cool item to add to my collection. haha.