My pair of Audio-Technica ATH-CK100PRO just arrived but I seem to be having some kind of static issue. I'll try to describe the static issue and if anyone has any idea at all of how I can get rid of it, it would be great. The static is constant even if no music is on. If the volume is turned entirely off, I don't hear it but the moment I turn the volume on even a little, I start hearing the static. So far, the static appears on my Vita, 3DS, DS, PC, Iphone, and Ipod, which is almost everything I have. The strange thing is....when I plug it into my PSP, there is no static at all unless I turn it on max volume. The moment I drop one level from max, the static is gone. The static is strong on Vita, 3DS, DS, and Ipod but weaker on Ipod and PC. On those two, I can block out the static with music but on the other three, even with music, I can hear it slightly. The static goes up slightly when I turn the volume up. I tried using a DAC in between the earphones and the source but it didn't help, the static is still there. By alternating between multiple other headphones/earphones, these are the only ones that have it. The seller is trust-able and I have reason to believe it was fine before arriving. Anyone know what might have affected it to have this static? Anyone know how might I fix it? Could it be an issue with the plug? Or worse case scenario, the earphones themselves?