I doubt that. After some research I do believe that Nexus 5 sounds decently good, but it could do a little better in frequency response accuracy and the output power is below average (not shown below).
Here's the table I merged from several different gsmarena reviews:
What do these values mean.
Frequency response: Closer to 0 values are better
Noise level: 0=worst; -99='best'
Dynamic range: Higher values are better
THD: Lower values are better
IMD + Noise: Lower values are better
Stereo crosstalk: -99='best'
As I suspected (and experienced), my old device - Desire HD performs very poorly (just look at that stereo crosstalk!), and I'am glad I haven't bought a Sensation a year ago too.
Edited by SmOgER - 1/9/15 at 4:25am