I am posting this in this forum. It is also in the portable headphone forum, but probably fits here better because neither of these headphones is classified as 'portable'. With that said, I am looking for a high quality closed back phone to use with an iPhone or Archos and MacBook. I was not...

I am looking for a high quality closed back phone to use with an iPhone or Archos and MacBook. I was not planning on using a portable amp. I have done research on the 780 (35 ohms) and the 900s (40 ohms) and can't decide between the two. I listen to all kinds of music and will be using these for...