Is it just me or is the audio quality abysmal out of the Nexus 5's 3.5mm headphone jack? With my ATH-m50x it sounds like someone is making popcorn in the background of every song I play. The crackling is so intense that it ruins a lot of my tracks. One of the best examples I can find is Lamb of God - Black Label. If anyone can try this song out on Google Music or Spotify on their phone and let me know if it sounds abysmal as well I would highly appreciate it.
All of my music is on Spotify, and I use their "Extreme quality" download option which is 320kbps. Man, it sounds HORRIBLE!
I'm going to try a headphone amp this weekend because this is ridiculous. I tried out the same song my my Samsung Galaxy S2 i9100 yesterday and it sounded crystal clear!