The headband of the R7DX is tension-free, as it does not fit hermetically sealed headphones. So I changed HE400SE headphones and headbands, and I got a very satisfactory result. | Drop
Replacement Headband Cushion For HIFIMAN HE4 HE400 HE5 HE5LE HE500 HE6 Top Head Band Pads Headphone Headset
How to: Hifiman Tear-Down, Grill Mods, Pad Swaps, Headband Replacement - YouTube
HiFiMan - HE-400 Headband Replacement - YouTube
🔶 Hifiman HE400se - #341 by PopinTeddy - [Official] Open Back - HifiGuides Forums
Original Headband
I bought HE400SE's so I could put the headband on my M1070's. Now they're lighter and more comfortable than ever! : r/headphonemods
HIFIMAN HE400se Review – The End Of Hi-Fi? - Home Studio Basics
Amazon.com: Geekria Protein Leather Headband Pad Compatible with Bose Beats JBL ATH Hyperx Skullcandy, Headphones Replacement Band, Headset Head Cushion Cover Repair Part (Black) : Electronics
Replacement Headband Cushion For HIFIMAN HE4 HE400 HE5 HE5LE HE500 HE6 Top Head Band Pads Headphone Headset
Hifiman HE400SE mods - Do It Yourself (DIY & Mods) - The HEADPHONE Community