Cheap Tweaks: Audeze and HiFiMAN Headband Comfort Mod - The Sound Apprentice
HifiMan Comfort Headband Strap DIY Mod for HE400se HE6 Edition XS and others - Custom Cans Shop
THE Ultimate Step-By-Step Hifiman Headband Replacement Guide from OLDSTOCK Hifiman (HE-4/5LE/6/400/500) into the NEWSTOCK (HE-400i/560) !!! | Headphone Reviews and Discussion - Head-Fi.org