I finally entered the "midrange" with my "new" HD580 for 170$ which is from a guy who apparently used it for 15 years. He almost sold it for 17$ as a mistake (I had to pay for it when it got delivered) but I corrected him later and he got the full asking price after I noticed him about the...

Hello there, I need some info regarding a HD580 precisions shown below. Does it correspond to the Black Silk model (made in Ireland) ? What should be reasonable cost in the EU ? Thank you in advance! Cheers

I'm currently restoring my Sennheiser HD 580's by replacing the earpads/foam & headband, but as i was removing the earpad foam i noticed dissolved foam, dirt, and dust were laying on the driver, they're roughly ~10 years old. -How would i go about removing all of that, i'm worried about...