Hello everybody, I have a few questions.
1. How well would the DT 770 Pro 250 OHM work well with the Fiio E07K Andes and iPod Classic 7th Generation?
2. How are the DT 770 Pro 250 OHM against the Audio Technicas M50's?
3. How long have you had these headphones and what are the pros and cons since purchase?
E07/6/5 are poor amplifiers and aren't even suitable for high impedance headphones. The ipod will need a line-out dock + a better amplifier. Perhaps the E12 if you want to stick with FiiO, I think.
M50 has a more revealing midrange but loses out in other aspects except soundstaging if you get your hands on a "golden sample" M50. M50 makes for a better portable, however.
Pros? It rocks and keeps on rocking! Repeat the previous ad infinitum. It scales with better equipment to a degree. I can't think of any cons of owning DT770, other than that it can be revealing of low-bitrate and poor recordings and isn't versatile with amps. Hardly cons to me, although maybe not to the next fellow.