AURELIAN AUDIOPre-order

Reference Series / 2026

Sound you can stand inside.

A studio-grade planar headphone built from a single billet of aluminium. Forty years of driver research, compressed into 320 grams.

Configure yoursFrom $2,480 · ships in 6–8 weeks
88 mm planar
Driver
32 Ω
Impedance
6 Hz – 52 kHz
Response
< 0.02 %
Distortion
FREE 30-DAY RETURNS /HAND-BUILT IN AARHUS /10-YEAR WARRANTY /CARBON-NEUTRAL SHIPPING /FREE 30-DAY RETURNS /HAND-BUILT IN AARHUS /10-YEAR WARRANTY /CARBON-NEUTRAL SHIPPING /
FREE 30-DAY RETURNS /HAND-BUILT IN AARHUS /10-YEAR WARRANTY /CARBON-NEUTRAL SHIPPING /FREE 30-DAY RETURNS /HAND-BUILT IN AARHUS /10-YEAR WARRANTY /CARBON-NEUTRAL SHIPPING /

The build

Four decisions that cost us money.

Every one of these would be cheaper done another way. None of them are.

One billet, zero seams

Each cup is milled for nine hours from a single block of 6061 aluminium. No glue, no resonant joins — the chassis is the acoustic chamber.

The diaphragm is the hard part

A 2.1-micron nanofilm sheet, thinner than a soap bubble, suspended under 40 N of even tension. We reject four of every five we make.

Tuned by ear, verified by lab

Every pair is measured against a reference curve, then signed off by a human listener in an anechoic room in Aarhus.

Built to be repaired

Drivers, pads, headband and cable are all user-replaceable with a single torx key. We stock parts for a minimum of twenty years.

The range

Three housings. One driver.

The acoustic engine is identical across the line. What changes is the room you put it in.

Aurelian One
#1
Aurelian
One

The reference. Open-back planar, 88 mm driver, walnut and aluminium. The one the engineers keep for themselves.

Aurelian One$2,480
Aurelian Field
#2
Aurelian
Field

Closed-back, 28 dB of passive isolation, folds flat. Built for tracking rooms and long-haul flights alike.

Aurelian Field$1,690
Aurelian Mono
#3
Aurelian
Mono

A single-cup monitoring solution for broadcast. Same driver, half the headband, absurdly specific.

Aurelian Mono$980

Limited runs

Editions, when the material allows.

Small batches built around whatever unusual stock we get our hands on. Hover a name.

Obsidian

Blackened aluminium · run of 120

Copper

Raw copper grilles · run of 60

Salt Flat

Bead-blasted bone · run of 90

Archive

1986 tooling, rebuilt · run of 25

Obsidian
Copper
Salt Flat
Archive

Finishes

Six anodised colourways.

Anodising is a dye bath, not a coat of paint, so it cannot chip off. The colour is the metal.

ObsidianCopperSaltCobaltMossBone
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PLANAR MAGNETIC · HAND ASSEMBLED · MADE IN DENMARK ·

Measured

The numbers, unrounded.

Driver
88 mm planar
Nanofilm diaphragm, 2.1 µm
Impedance
32 Ω
Amplifier-friendly, phone-drivable
Response
6 Hz – 52 kHz
±0.8 dB measured, free field
Distortion
< 0.02 %
At 100 dB SPL, 1 kHz
Weight
320 g
Without cable
Warranty
10 years
Transferable, parts included

Word of mouth

What people said after a month.

I mixed an entire record on these and never once reached for the reference monitors. That has not happened to me before.
Dahlia Mercer
Mix engineer, Fathom Studios
The imaging is almost rude. You hear the room the take happened in, chair creaks and all.
Ingo Brandt
Mastering, Nordlys Audio
Two thousand dollars is a lot of money. These are worth it. Both statements are true.
Priya Raghunathan
Reviewer, The Listening Desk

Before you ask

Questions we actually get.

No. At 32 ohms the One is comfortable off a laptop or phone. A good amp adds headroom and control in the bottom two octaves, but it is not a prerequisite.

Currently six to eight weeks. Each pair is assembled by one technician start to finish, and we will not rush the tensioning step.

Send it in. Driver replacement is a flat 240 dollars regardless of cause, including accidental damage, for the life of the product.

The Mono uses the identical driver in a single-cup broadcast housing at 980 dollars. Sonically it is the same instrument.

Hear it for thirty days.

If it is not the best thing you have put on your head, send it back. We pay the return shipping and we do not ask why.