Hedd Audio D1 Headphones

Hedd Audio D1 Headphones feature an open-back over-ear design with a custom 50mm dynamic driver incorporating a Thin-Ply Carbon Diaphragm, a frequency response of 5 Hz to 40 kHz, an impedance of 32 ohms, and a sensitivity of 100 dB SPL. Designed and built in Berlin, Germany, these reference headphones utilize advanced carbon composite materials engineered to eliminate internal driver resonance. By replacing traditional driver diaphragms with ultra-stiff carbon layers, the design achieves lightning-fast transient response, dynamic impact, and studio-grade accuracy. The open enclosure generates an expansive, natural soundstage, while soft perforated velour ear pads ensure long-term listening comfort.

Professional reviewers and audio enthusiasts praise the Hedd Audio D1 Headphones for delivering outstanding tonal balance and midrange clarity. Industry experts note that vocal performances and acoustic instruments sound natural and uncolored, supported by clean sub-bass extension without mid-bass bleed. Users frequently highlight their versatile driveability across various playback sources and their impressive ability to scale alongside high-end amplification. Listeners consistently commend the fatigue-free sound signature, robust German construction, and precise instrument separation.

Delivering studio monitor resolution and dynamic realism directly to personal audio, these open-back headphones bridge the gap between technical precision and musical enjoyment. The advanced carbon driver technology ensures that every musical detail unfolds with breathtaking purity, making them an essential addition for serious listeners.

Brand	Hedd Audio
Type	Over-Ear Headphones
MSRP	$799.00
SKU #	100653
Serial #	582-1739
Cosmetic Rating	8 - Very good condition with minimal visible cosmetic wear including some surface scuffing to the top of the headband, aside from the cosmetic blemishes these headphones sound great and would make a great choice for adding to your setup.
Functional Notes	Operational condition of this item is excellent, fully tested and no issues found.
Age	Unknown
Owners	1
Service History	None