After 40 makes and models of headphones, both full size and IEM style, my path has lead me to the Betyerdynamic DT-990's. Their Vibrant, lush, and well rounded sound characteristics have made these my favorite set so far, however my search continues. Their is no perfect pair of headphones, they all represent the artistry of our tunes a little differently, and that is why we share with one another on forums such as this.
The DT-990's say that I have explored far and wide, but that there is still more work to be done. Making great sounding headphones requires more than technical mastery, it requires the touch of craftsman.
Next stop, Heir Audio.