I recently started using my Sony HAP-S1 to play more music and have noticed an issue in which certain songs have late starts, I'm talking fractions of a second. For instance, a song that begins with a bass drum kick paired with a cymbal crash will instead begin with the resonance of that cymbal.I've messed with fade options, gapless playback, etc. I play flac files, and the native files play fine off of my computer and phone. I have the latest firmware.