About
Carbon nanotubes belong in aerospace. Defunc put them in a headphone driver.
The 40 mm Bio-diaphragm at the centre of these headphones uses carbon nanotube construction to move air more precisely than conventional materials allow, which is why the low end stays controlled rather than bloated and the highs resolve detail without turning harsh. Six microphones handle call duties, with ENC processing working across all of them to separate voice from background noise before a word reaches the other end of the line. That is a higher microphone count than most over-ear headphones carry, and it shows in conditions where a single-mic design would simply give up. Custom EQ lets the frequency balance shift further to suit whatever the carbon nanotube driver's neutrality reveals in a given recording.
The memory foam ear pads compress to match the shape of each ear and hold that shape across long sessions, which matters when the battery is rated to 55 hours. LDAC support means the wireless signal carries enough data to make use of hi-res audio files rather than compressing them down to standard Bluetooth quality. Four ANC modes, listed in the details panel, cover everything from full isolation to a transparency setting that lets ambient sound through deliberately. The result across all four modes is a headphone that handles the listening environment as a variable to be adjusted, not a fixed condition to be endured.
- Designed in
- Sweden
- Noise
- ANC, Adaptive, Transparency, Normal modes; 35 dB reduction
- Charging
- USB-C, 1.5 hour charge time
- Weight
- 310 g
- Colours
- Graphite, Black, Greige, Transparent
Figures as published by the manufacturer. Source

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