Biocellulose diaphragm
Layered organic fibre cut to a 40 mm dome for a controlled midrange character.
Kestrel builds closed-back over-ear headphones, in-ear monitors and care objects in small batches from machined aluminium, lambskin and biocellulose.



Kestrel began with a simple question: what would a listening object look like if it were made the way a good chair or a good knife is made? We work with a small in-house team and a handful of local suppliers, cutting, finishing and assembling in short runs. The result is not a gadget but a quiet object with a specific weight, a specific feel, and a specific sound that rewards the hours you give it.
Read our story →A considered edit, designed around the way you actually use it.

Closed-back over-ear headphones for long-form listening. Machined aluminium cups, lambskin pads, detachable cable.

In-ear monitors with brass nozzles and braided silver-plated copper cables.

Objects for care and storage: hemp travel case, solid ash stand, leather cable wrap.
What is included, how it is made and what to expect.
| Specification | Detail |
|---|---|
| Driver | 40 mm biocellulose dome |
| Enclosure | Closed-back, machined aluminium |
| Cable | Detachable, 1.5 m silver-plated copper |
| Weight | 312 g |
Questions about fit, materials or delivery? Contact the studio.
The choices behind the object, from material to the last mile.
Layered organic fibre cut to a 40 mm dome for a controlled midrange character.
A narrow slot vent shapes low-frequency roll-off without muddying the mids.
Locking 2.5 mm connectors at each earcup; three lengths included.
Spring steel core wrapped in vegetable-tanned leather; no notches or clicks.

“Listening, considered as craft.”Kestrel studio

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