Some time ago I found a pair of Audio-Technica ATH-911's at a garage sale. They were only $10 so I had to get them. So now I'm trying to find some specs and info about them. Currently I'm using them with my Asus Xonar DG and from what I've been able gather from googling is that they're supposed demand a lot of power. I really like them and I'm thinking of getting a amp to give them more to work with. What do you guys suggest I look for?
Pic of the headphones:
(embed doesn't seem to work atm)