HEDD HEDDphone D1 - Open Back Dynamic Carbon Diaphragm Headphones

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£599.00 inc. VAT(£499.17 ex. VAT)

Thin‑Ply Carbon Diaphragm (TPCD) for faster transients and lower distortion
Reengineered dynamic driver for studio‑grade clarity and natural dynamics
Lightweight 350 g construction for extended, fatigue‑free listening
32 Ω impedance and 100 dB sensitivity for wide compatibility with portable players and amplifiers
Precise, balanced tonal presentation with revealing detail and low listening fatigue
Ergonomic, stable fit engineered for long sessions
Fully serviceable design, manufactured in Germany for durability and repairability
Scales gracefully with higher‑end sources while remaining controlled on entry‑level equipment

Manufacturer warranty: 60 months

HEDDphone D1

The HEDDphone D1 brings reference‑monitor accuracy to a headphone, delivering clarity, realism and tonal integrity without compromise. Every note is presented with balanced immediacy and revealing detail while the ergonomically engineered fit keeps listening comfortable for extended sessions.
At its core is the world’s first Thin‑Ply Carbon Diaphragm (TPCD), an advanced composite born from HEDD’s collaboration with Composite Sound of Sweden. TPCD removes the need for conventional diaphragm damping, yielding faster, cleaner transient response and studio‑grade precision from a dynamic driver architecture reimagined through decades of acoustic expertise.
Weighing just 350 g and specified at 32 Ω / 100 dB, the D1 combines lightweight comfort with universal performance across portable players and dedicated amplifiers. Made in Germany and fully serviceable, the HEDDphone D1 is engineered for longevity and confident, fatigue‑free listening for those serious about sound.

Key Features
A concise set of innovations and engineering choices that give the D1 its reference-grade sound: an industry‑first Thin‑Ply Carbon Diaphragm, a reworked dynamic driver architecture, lightweight construction for long sessions, and broad compatibility across source equipment.

Thin-Ply Carbon Diaphragm (TPCD)
The TPCD is a purpose‑built composite diaphragm that delivers exceptional rigidity with minimal mass. By removing the need for conventional damping at the diaphragm itself, it provides quicker transients, cleaner decay and a more coherent midrange — all with lower distortion than conventional materials.

Reimagining Dynamic Drivers
HEDD redesigned the driver from first principles to resolve the usual trade-offs of dynamic designs. The result is a driver that preserves the speed and clarity of planar alternatives while retaining the natural dynamics and impact of a moving‑coil system.

Lightweight Comfort, Long Listening
At 350 g the D1 balances solidity with surprising lightness. The refined driver packaging and ergonomic contours reduce fatigue, so listeners can enjoy extended sessions without discomfort while maintaining a secure, stable fit.

Universal Performance
With a nominal impedance of 32 Ω and 100 dB sensitivity, the D1 is equally at home with portable players, desktop DACs or high‑current amplifiers. It scales smoothly with better sources, offering controlled dynamics and consistent tonal balance at every level.

Made in Germany
Manufactured and serviceable in Germany, each D1 embodies meticulous craftsmanship and long‑term support. Components and assembly prioritise durability and repairability, reflecting HEDD’s commitment to product longevity and dependable performance.
Features
Thin‑Ply Carbon Diaphragm (TPCD) for faster transients and lower distortion
Reengineered dynamic driver for studio‑grade clarity and natural dynamics
Lightweight 350 g construction for extended, fatigue‑free listening
32 Ω impedance and 100 dB sensitivity for wide compatibility with portable players and amplifiers
Precise, balanced tonal presentation with revealing detail and low listening fatigue
Ergonomic, stable fit engineered for long sessions
Fully serviceable design, manufactured in Germany for durability and repairability
Scales gracefully with higher‑end sources while remaining controlled on entry‑level equipment
Package Includes
HEDD HEDDphone D1
2x 3.5mm Cables
Carry Case
Technical Specifications
Design: Open-back over-ear headphone
Drivers: Dynamic with a Thin-ply Carbon Diaphragm
Frequency Range: 5 Hz - 40 kHz
Sensitivity: 100dB at 1mW
Impedance: 32 Ω
Inputs: 2x 3.5mm
Cable: Textile-covered premium cable
Pads: Perforated Velour
Net Weight: 350 g