I have an issue that I wanted to see if someone could help me solve. The tip of the headphone jack on my Hi-Fi man HE-500 headphones has completely corroded. Is plugged into a Lyr headphone amplifier from Schiit Audio. Did the headphone amp fry the tip of the headphone jack or was it just a bad headphone jack? Anyone else have this problem? Issue occured after approx 6 mos in service.