Original Replacement Sennheiser SL-E1 Driver Capsule For HD414 SL Headphones. MA | #2013849222
Sennheiser HD 414 and 424
Sennheiser HD 424 Ear Pads – Thomann United States
Sennheiser HD414 - Headphones and Portable Audio - StereoNET International
HD420 SL | DIY-Audio-Heaven
Sennheiser Earpads (pair), for HD 414 - - Ear cushion (pair)
Sennheiser - HD 414 SL - Headphone - Catawiki
Replacement Audio Cable For Sennheiser HD25 HD560 HD540 HD480 HD430 414 HD250 HD 414 HD 414 SL HD 420 HD 480 Headphones|Earphone Accessories| - AliExpress
Since it's apparently Sennie week here are my HD 414 with 2000Ω. : r/ headphones
Amazon.com: Replacement Foam Ear Pads for Sennheiser HD 424 Headphones : Electronics