If anybody is trying to refurbish their ancient HD580's I've actually had success with Sennheiser where you send them a decrepit pair of HD580's and they send your stuff back basically brand new with any iffy parts replaced which in my scenario included pads, cable, headband.. and there may have been a driver swap but I don't remember. I do remember things sounding better, but I still have my 580's! The price was like $100 at the time and their service, communication, and overall feel of the brand as a whole from that experience was very luxurious and accommodating.