Hey, I am listening to some music Johnny Cash - Hurt on my HiFiMan HE-500 headphones running through a DAC and then through my Schiit Lyr Amp. I am noticing some very annoying scratchiness/distortion which, to my ears, appears to be coming from the bottom of the left phone around 3:02 and gets worse all the way until 3:27 of the song. Can anyone that has a pair of HiFiMan HE-500s listen to a FLAC or 320 Mbps version of this song and see if you notice the same thing? I am afraid something is wrong with the headphones... Thanks.