I've just gotten one with Burr Brown to try and am ABing it vs the HP-P1 as I write. (no LOD cable included and in fact I'm using the white standard Apple sync/charging cord because it so much easier to keep plugging and unplugging when going back and forth)
My hat is off to you guys who can so succinctly evaluate and then express in writing what you hear. Just when I think I've nailed a difference, whether it is bass, separation, clarity.......I compare again with a different song/artist and it changes again. LOL
Funny but also very frustrating when trying to make a decision.