sorry i didnt clarify very well.
i have a LOD from my ipod to the e11, but it has been on the fritz lately and the left channel only wants to play on certain days thats why im looking for an upgrade/replacement
i was interested in the e07k because it could serve as a dac/amp when i have my laptop and am at home, and be my portable amp. one buy that i could use universally.
looking at the e07k and the e17, they seem pretty close as it is. but with the price point and myself not having SPDIF, i think the e07k is a better option for me.
as music goes i try to sample a lot of different genres. but majority of my everyday listening is down-tempo trance stuff and alternative. but i do listen to a lot of rock and very hard hitting music. i also like a little warmth in my headphones. anything too bright or edgy really fatigues my ears even after shot listening secession.
i havnt listened to very many headphones myself, there arnt any places locally for me to do so. i thought the dt770 pro's would be good to try because i like a little bass in my music (nothing major), and they are mentioned all over the budget recommendation pages. ideally i would like to stay around $150 unless there is the holy grail of entry cans just a few dollars away.
portability isnt an issue with headphones, most of the time that i am away from home and using them is on buses or road trips. i would prefer one headphone and one amp for everything, that would be the most useful for me.