Hey, I have a few questions but first the situation I'm in. So I wanna buy the DT770 Pro 250 Ohms and I don't know which Preamp I should get for them. It should be relative portable so I can get it to my friend's and I want to produce music so it would be good if I can hear quiet samples too...

Hey, my name's Johannes and I'm from Germany. I'm very new to the matter of let's say good headphones. Currently my gear is my motherboard on-board chip and a Razer Kraken Pro but I want to upgrade it after christmas :)