The HEDDphone® D1 is a precision-crafted open-back headphone designed to deliver studio-level clarity and natural sound reproduction. Created for listeners who demand accuracy and depth, the D1 reveals subtle details with ease while maintaining a smooth, fatigue-free presentation. Its lightweight frame, breathable velour pads, and thoughtful design make it a reliable choice for long sessions, from critical listening to casual enjoyment. The open-back architecture contributes to a spacious soundstage, allowing the music to breathe and feel true to life.

At the core of the D1 is a Thin-Ply Carbon Diaphragm, an advanced material adapted from high-performance industries like aerospace and motorsport. This innovation, developed with Composite Sound, gives the driver speed and control without relying on traditional damping. The result is a dynamic driver that captures transients cleanly and preserves tonal balance. With 32-ohm impedance and 100 dB sensitivity, the D1 performs consistently across a wide range of audio sources and scales well with premium systems. Hand-assembled in Berlin, it reflects a commitment to craftsmanship, acoustic precision, and long-term reliability.

Features

Thin-Ply Carbon Diaphragm
Delivers fast, clean, and accurate sound using advanced materials for natural resonance control.

Custom Dynamic Driver
Tuned for studio-grade precision with balanced, detailed, and fatigue-free listening.

Open-Back Design
Creates a spacious, natural soundstage with excellent openness and realism.

Wide Source Compatibility
Works well with everything from portable players to high-end amplifiers.

Comfort for Long Sessions
Lightweight build and ergonomic design provide lasting comfort during extended use.

Premium Accessories Included
Comes with high-quality cables, adapters, and a custom carry case for convenience.

Made in Germany
Crafted with care and expertise in Berlin for trusted quality and performance.

Extended Warranty
Includes a 5-year warranty after registration for peace of mind.

Specifications

• Device Type: Open-Back Over-Ear Dynamic Headphones
• Diaphragm Material: Thin-Ply Carbon Diaphragm (TPCD)
• Driver Type: Custom Dynamic Driver
• Construction: Designed and Assembled in Berlin, Germany
• Ear Pad Material: Perforated Velour
• Form Factor: Circumaural (Over-Ear)
• Weight: 350g (net)
• Included Accessories: Dual 3.5 mm mono connectors, 6.35 mm adapter, 2 textile-covered detachable cables, custom carry case
• Frequency Range: 5 Hz – 40 kHz
• Performance
  • Maximum SPL: 100 dB @ 1 mW
  • Impedance: 32 Ω
• Input Connectors: 2 x 3.5 mm mono
• Cable
  • Cable Type: Textile-Covered Premium Cable
  • Cable Configuration: Detachable, Dual 3.5 mm Mono to 6.35 mm Adapter Included