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Dan Clark AudioDan Clark Audio

Expanse

Driver
Planar magnetic
Enclosure
Open-back
Weight
418 g
List
$4,499.99
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The open-back partner to the Stealth, with the same Acoustic Metamaterial Tuning System and the largest v-Planar driver Dan Clark Audio has made. The chassis is aluminium and titanium with a carbon fibre baffle.

Where to buy

List $4,499.99

Retailer prices checked 2026-10-21. We may earn a commission on purchases. How this works

Title block

Maker
Dan Clark Audio
Model
Expanse
Made in
United States
Released
2022
Transducer
Planar magnetic
Enclosure
Open-back
Driver
76 mm x 51 mm
Weight
418 g
Impedance
26 ohms
Sensitivity
~90 dB/mW
Frequency response
Not published
List price
$4,499.99 USD

Drive requirements

Match an amplifier in the synergy calculator
LevelPowerVoltageCurrent
100 dB10.0 mW0.51 V19.6 mA
110 dB100 mW1.61 V62.0 mA
120 dB1000 mW5.10 V196 mA

Most headroom at 110 dB

Rated 90 dB/mW into 26 ohms. Estimated from published amplifier output.

Assembly drawing

1234567

Parts

  1. 1HeadbandNickel-titanium band, quilted black leather strap, self-adjusting suspension
  2. 2YokeFolding gimbals carried over from AEON 2; per-part materials not published
  3. 3GrilleOpen grille with pattern from generative-design math functions; material not published
  4. 4Ear cupAluminum and titanium chassis; carbon fiber baffle
  5. 5Magnet arrayNot published
  6. 6Diaphragm4th-generation v-Planar diaphragm, DCA's largest to date; material not published
  7. 7EarpadsComposite synthetic suede and protein leather; fill not published

Schematic planar magnetic assembly, annotated with the Dan Clark Audio Expanse’s published materials. Not to scale.

Engineering notes

  • Acoustic Metamaterial Tuning System (AMTS, patent pending): inline device between transducer and ear combining waveguides, diffusion control, quarter-wave and Helmholtz resonators
  • 4th-generation single-ended planar magnetic driver, 76 x 51 mm, with revised driver tensioning system
  • FEA and CFD optimized motor structure
  • Self-adjusting suspended strap replaces mechanical sliders; folding gimbals allow a compact travel case

Design language

Engineered minimalism: a grille pattern generated from mathematical functions, teardrop cups and a nickel-titanium band.

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Related architecture

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