+1 to what Chris has said. I think the DX200 presents it as it is....if there's not much bass, have a chat to the mastering engineer of the track.
So far of the 3 players I've spent time with to me the :-
DX200 - neutral dry presentation
AK380Cu - neutral but with a smoother presentation than the DX200
NW-WM1Z - A little warmer/thicker with a fluid analogue-like presentation. Smaller soundstage compared to the above 2.
I've not tried the other Fiio X5G3, Opus 3, new...