Hifiman HE4xx earpad conversion kit for regular earpads (parametric model)
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Simple printable adapter ring for Hifiman HE400se that allows mounting standard round earpads
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Model information
- Source
- Printables
- Category
- Audio
- License
- Creative Commons — Attribution — Noncommercial
Simple printable adapter ring for Hifiman HE4xx (HE400se, HE400i, HE400S) that allows mounting standard round earpads (e.g. 100–110 mm aftermarket pads like Dekoni, Brainwavz, Yaxi, etc.).
Replaces stock mounting system → easier pad swaps, more comfort & pad options.
Best fit is with 100mm earpad, but you can modify the model for use with different diameter earpads.
Assembly:
Print both files and super glue them together, make sure to align the holes (there are marks on both sides, see below).



Remove original earpads and unscrew six phillips screws (do not remove the metal ring with sticker)
Put it all back together - there is only one correct orientation to match the threads!
STls are for 100mm earpads, but can be modified with changing the padDiamter paramater in Fusion 360.