Sennheiser HD 5X8 Short Cable - - Short Replacement Cable 4.5ft for HD518 HD558 HD598
Simple mod Sennheiser HD555 make it a HD595 + Cleaning - YouTube
Amazon.com: Geekria Audio Cable Compatible with Sennheiser HD 599 SE, HD 599, HD 598, HD 598 SE, HD598 CS, HD 598 SR, HD 560 S, HD 400 PRO, HD 579, HD 559
Sennheiser Replacement Cable for HD 25-1 Headphones (Steel)