I am a huge fan of his, I idolize him for his work as he guides me to most of my high end purchases often...however in this case he is very wrong. The mx980 sounds nothing like the Pk1 and they are not on the same level, not even close. The Mx980 is neutral, powerful, smooth and has a load more bass with a massive soundstage. The pk1 is snappy, colored, bass light and has an average earbud soundstage.
Great! I'll try to get a pair of the Sennheiser MX980s. Do you know where I can get them cheapest?