I request to the developers, for AOSP roms please select the AMOI n828 as 'port rom' or any other rom which provides better sound quality.Because the audio output that we get from these rom is as amazing as xperia rom. One of the rom is Dreamy rom which has amazing audio output. So listening to songs in that rom is as freaky as listening it on xperia based roms.
As many of them here are music freak so please take care towards it because many roms like SLD, Tsunami, Kitkat themed rom are AOSP based rom but do not have a good audio output. So while listening to songs in earphones sounds quite pitchy.