It could be also the effect of 1Z smoother more musical sound sig versus more revealing reference sig of DX200. Sometimes we focus so much on the sound of headphones, that we forget about the source having its own contributing factor (not just synergy but the actual sound sig of the source). A few people already mentioned to me they are not crazy about dx200, and after a further chat they disclosed about wanting more impact and weight in the low end, on top of the L-shaped (or V-shaped) sig of their headphones. I guess DX200 is not for bassheads, but rather for purist I find DX200 to be a true Reference quality DAP, even more than LPG where mid-bass has a little more slam in comparison to DX200. I mean, when we describe a sound as being warmer or brighter, in my opinion it's just a relative comparison to something else we use as a reference. Based on everything I have tested and reviewed so far, DX200 became that "reference" to my ears.