Berlin’s audio specialists at HEDD have introduced the HEDDphone D1, an open-back reference headphone built specifically for critical listening, mixing, and mastering. Handcrafted in Germany and backed by a five-year warranty, the D1 targets professionals who need speed, neutrality, and a wide, natural soundstage without sacrificing long-session comfort.
At the heart of the D1 is a pair of thin‑ply carbon diaphragms (TPCDs) developed with Composite Sound. This material is engineered for exceptional stiffness-to-weight, enabling a tuned response that extends from a subterranean 5 Hz up to 40 kHz. The result, according to the company, is ultra-clean transients, high clarity, and the kind of microdetail that helps engineers make confident decisions during production and mastering.
The open-back architecture delivers an airy, three-dimensional stage that feels more like nearfield monitoring than typical closed headphones, while perforated velour earpads aim to keep you cool and comfortable through marathon sessions. Despite their robust build, the headphones come in at 350 g, striking a balance between solidity and wearability.
Key specs and what they mean for you:
– Frequency response: 5 Hz–40 kHz for full-band monitoring and revealing top-end extension
– Transient performance: fast attack and decay to expose edits, compression, and microdynamics
– Impedance: 32 ohms, making the D1 easy to drive from audio interfaces and portable amps
– Maximum SPL: 100 dB at 1 mW for confident listening headroom
– Weight: 350 g with perforated velour earpads for long-session comfort
– Cabling: two detachable Y‑cables with dual 3.5 mm mono connectors at the cups, plus a 6.35 mm adapter
– Accessories: protective case included
– Warranty: five years
– Price and availability: MSRP $799 / €699 at authorized dealers
For engineers and producers, the D1’s combination of speed, extension, and openness is designed to reveal mix balance, EQ moves, and dynamics with precision. Audiophiles searching for a reference-grade, open-back experience will also find the D1’s tuning and staging appealing, especially if they value accuracy over coloration.
Handcrafted in Berlin and built around innovative TPCD drivers, the HEDDphone D1 brings studio-focused transparency to an accessible price point, making it a compelling option for anyone who needs reliable, reference-class monitoring.
