Amazon.com: Sennheiser HD 558 Headphones : Electronics
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 HD 558 | Headphone Reviews and Discussion - Head-Fi.org