When it rains it pours...
I did a potentially stupid thing yesterday (took off the cover/earpad on the HD580 while music was playing) and now there seems to be some distortion* on the left side. It is definitely the headphones (I have switched out the amp/dac). Could this be anything more than getting some fuzz hair on the driver - I don't see anything obvious with the naked eye - or could there be some other damage since the driver was being used when I removed the cover? If there is some dust or hair, how do I get it off, especially if it is not obvious where it is?
*I think it is distortion. When playing low bass, it buzzes a bit like really cheap speakers turned up too loud.