I'm looking at getting the DT 770 PRO 250 ohm for instrumental/classical music and some movie watching. Mainly getting 770 for the comfort, bass (I like some impact), and closed feature. I am in a dorm so my only source is a Lenovo T530 laptop. I am looking for an amp+DAC/external sound card under $80 to properly power the 770 if possible. Some of the devices I have found so far are the Sound Blaster X-Fi HD USB, Fiio E7, and Fiio E10. I want something that can be directly plugged via USB and not have to run on battery (even though it could have a battery, it would just have to be able to be used and charged at the same time, but I don't care about portability). What amp+DAC/external sound card would suit me? On the other hand, would the 80 ohm version sound better than the 250 ohm using an amp+DAC/external sound card in my price range (or a different closed headphone under $250 like SRH940 or PRO 750, even though they are less comfortable and they have less bass impact I think).
Any advice if appreciated!
Edited by cmander10 - 9/7/12 at 11:29pm