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SOUND SCULPTED®

Shop the M1 Engineering
Reference-quality headphones engineered by the master craftsmen who built monitors for Abbey Road. Bi-amped beryllium drivers. 96kHz/24-bit ADC. Mastered for studio engineers — gifted to everyone else.
Reference-quality headphones engineered by the master craftsmen who built monitors for Abbey Road. Bi-amped beryllium drivers. 96kHz/24-bit ADC. Mastered for studio engineers — gifted to everyone else.
Reference-quality headphones engineered by the master craftsmen who built monitors for Abbey Road. Bi-amped beryllium drivers. 96kHz/24-bit ADC. Mastered for studio engineers — gifted to everyone else.
96kHz Native sample rate
24-bit ADC depth
4.9★ From 2,800+ owners
30 day Home trial
Mastered in Berlin
Hand-tuned drivers
Reference grade
Lifetime calibration
96kHz · 24-bit
Mastered in Berlin
Hand-tuned drivers
Reference grade
Lifetime calibration
96kHz · 24-bit
As reviewed in
Stereophile Sound on Sound Resident Advisor Tape Op The Verge What Hi-Fi?
The Catalogue · Ten pieces

Every note. Heard.

Engineering Notes

Built in Berlin.
Tuned to reference. Heard everywhere.

0.1%
THD distortion
Below the threshold of human perception across the full audible spectrum.
40mm
Beryllium drivers
Hand-coated, dual-layer. Manufactured in our Berlin lab in batches of 200.
72h
Wireless playback
USB-C fast charge. Bluetooth 5.3 + LDAC. Wired-quality bitrate over the air.
∞
Lifetime calibration
Ship your unit back any time for free re-tuning. We replace the foam too.

30 days. No questions.

Try the M1 at home for thirty days. Hate it? We pay the return shipping and refund in full. Love it? It's yours. Either way — listen to what you've been missing.

Start the trial
Frequently · asked

Sound questions. Real answers.

Some. Suspension components soften over the first 50–80 hours, smoothing the sub-bass and adding a touch of treble extension. We ship every unit pre-burned for 24h, so you hear most of the change immediately and the rest within a couple of weeks of normal use.
On M1, in controlled listening, no — LDAC at 990 kbps matches the analog cable's signal-to-noise ratio. In high-RF environments (city, transit) the wired connection is more stable. Both cables ship in the box: 3.5mm and 4.4mm balanced.
Our house tuning — slight low-end emphasis at 80Hz (+1.5dB), perfectly neutral midrange, gentle air at 8kHz (+1dB). Designed against the Harman 2018 target, then walked back 30% toward neutral. Not "fun", not "flat". Honest.
Every M is repairable indefinitely. We stock drivers, cups, headbands, cables, and earpads for 15 years minimum from launch. Out-of-warranty repairs are at-cost — typically €60–€180 depending on the part. Send to Berlin, we ship back in 10 business days.
M1, M1 Stealth, M3, M3 Pro, M Air: no. They drive cleanly from any decent phone or laptop. M0, M0 Pro, M0 Heritage (planar): yes — even a $100 DAC/amp makes a real difference. Without one, they're quiet and lifeless.
The wood. Walnut and cherry are CNC-machined from boards we hand-pick at a Bavarian timber yard. Each batch is 100–200 units. When they're gone, that batch is gone. We don't restock — we make a new run with whatever wood we find next.
Send your unit back to Berlin once a year (or whenever it starts sounding "off"). We measure it on the Audio Precision rig it was originally tuned on, replace any drifted components, re-pair the drivers if needed, and ship it back. Free for life. You pay shipping one way.
Because we believe in iteration over expansion. The M1 went through 17 prototypes before launch. We'd rather make 10 things we'd buy ourselves than 50 things we'd sell. Heritage editions add finish variants; the actual platform count stays small on purpose.
What people say

Real listeners.

MONOLITH studio, Berlin
Studio · Manifesto

No middlemen.
No restocks.
No noise.

We started in 2019 in a Kreuzberg workshop — two mastering engineers and one industrial designer who couldn't find headphones that didn't lie. The first M0 took us fourteen months to ship. Eighty-three units. We sold them by word of mouth to people we already knew.

Six years later, we've made eleven products, we still measure every driver pair by hand, and we still ship from the same building. We don't do seasonal collections. We don't run sales. When a Heritage batch sells out, we make a new one with different wood, not the same wood again.

Everything we build is meant to outlast its buyer. Every driver, cable, earpad, and headband is replaceable. We stock parts for fifteen years. Lifetime calibration is genuinely lifetime. If that sounds slow, it is. It's also the only honest way we know how to do this.

2019Founded · Berlin
100–200Units per Heritage batch
15 yrsParts availability
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