Today I noticed something that puzzled me. The stereo we use at work, which puts out more than enough sound than we need, seemed very quiet today when I hooked up my N4 today for the first time. My volume was up high as was the stereo. I even tried out some sound boost app from the play store and combed my settings to see if there were some sound output limit to prevent ear or speaker damage. But no matter what I tried, it seemed like my N4 would not put out much sound through the headphone jack. I could hardly hear the music over the sounds of the kitchen. It's not an issue with the speaker, my coworker plugged in his iPhone 5 and put both devices at half volume, and it sounded like more than double the volume I got. I was wondering if this has been noticed by others, or if somebody knows more about this. I'm just trying to track down why this could be. Don't want to sound dramatic, but would hate to go a few days without my new N4 if there were a problem I had to return it for. Already have to do that with the new car (under 200 miles and there's an issue with a tail light).