Amazon.com: LOL PARTY HD598 Cable Coiled Aux Cord Replacement for Sennheiser HD598 Cs HD599 HD569 HD579 HD558 HD518 Headphone Audio Cable with 6.35mm Adapter 4 to 12ft Long : Electronics
CANFORD DYNAMIC MICROPHONE RADIOMIC ADAPTER 3-pole Lemo for Sennheiser
Amazon.com: Replacement Cable for SENNHEISER Headphones HD650 HD600 HD580 HD535 HD545 HD565 HD265 with 1/4" 6.3mm plug : Electronics
HD300 Pro Replacement Headphone Cable with 3.5mm Stereo Jack, by Sennheiser | Audio Sanctuary
SENNHEISER 4-Pin XLR Balanced Stock Cable & ADAPTER for HD 650, HD 660 S - 10ft | eBay