My bad, I accidentally put down flac but I don't actually have that. 

I have wav, apple lossless, flac, and mp3. I don't have any amps at all.

Im looking for new headphones. I listen to electronic, rap, classic rock, alternative and a lot of other variations of rock, and some reggae. What would be the best headphones for under 300? Also, what amp would go best with those headphones? I don't care about noise isolation or leaking any...