I'm quite knowledgeable about audio equipment until it comes to DACs and amps. I'm going to be purchasing the Grado sr80i's and I hear that they work best with an amp just like every headphone. Should I spend that money on an amp instead? I own Beyerdynamic DT770 Pro 80ohm headphones, and I know that they would improve with an amp. I will be using the amp at home but I want to use it with my ipod and my computer, I'm not sure if there is anything around my price range that is portable and have those features. Forgive my ignorance, and if you feel that I should be educated on something DO NOT hesitate to link me to a page that could teach me or teach me yourself. Thanks.
Edit: The Fiio E07K seems to be what I want. Opinions?
(this was posted on portable headphone amps, but I don't think that's where I should've posted it)