Replacement Cable for Sennheiser HD25 HD560 HD540 HD480 HD430 414 HD250 HD 425 HD 430 HD 440 II HD 530 HD 540 Headphone Audio
White Wrapped Custom Color Braid Sennheiser HD25 HD 25-1 Replacement Cable 1.5m 4044156027968 | eBay
Amazon.com: NewFantasia Replacement Cable Compatible with Sennheiser HD25 / HD25-1 / HD25-1 / II HD25-13 / HD25-C Headphone, Remote Volume Control Mic Compatible with Samsung Galaxy Android : Electronics
Amazon.com: Black Earphone Cable Headphone Extra Cable for Sennheiser HD 25-sp HD 222 HD 224 HD 230 HD 250 HD 250 Linear II HD 414 HD 414 SL : Electronics
Clearly, the HD25-1 II needs a $400 cable : r/headphones
Sennheiser HD-25 Coiled Cable – Thomann United States
Audio Cable for Sennheiser HD25 HD 25 ii Plus HD25-1 HD25-C Spiral Coiled Cable | eBay
Sennheiser KBL - HD 25-SP-II (archived) - - Connection cable
Sennheiser HD 25 Light - Dynamic Studio Headphones - Hifi Stereo
Sennheiser Coiled Cable for HD25 - II 523877 B&H Photo Video
Endorphin Single-Ended High-End Headphone Cable for Sennheiser HD25 “Y” Version