{"product_id":"hedd-audio-heddphone-d1-b-stock","title":"HEDD Audio Heddphone D1 (B-stock)","description":"\u003cp data-end=\"502\" data-start=\"138\"\u003eThe \u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eHEDD Audio HEDDphone® D1\u003c\/strong\u003e is an open-back over-ear reference headphone featuring a 32 ohm dynamic driver with Thin-Ply Carbon Diaphragm technology, 100 dB sensitivity, a 5 Hz to 40 kHz frequency response, dual 3.5 mm inputs and a lightweight 350 g chassis designed for critical monitoring, mastering and high-resolution personal listening.\u003c\/p\u003e\n\u003ch2 data-end=\"550\" data-start=\"504\"\u003e\u003cstrong data-end=\"550\" data-start=\"507\"\u003eReference Monitoring Without Compromise\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"876\" data-start=\"552\"\u003eThe HEDDphone® D1 delivers a studio monitor level of accuracy inside a headphone format engineered for extended listening. It presents tonal balance, transient speed and micro-detail with absolute control, allowing engineers, producers and audiophiles to assess recordings without coloration, fatigue or dynamic compression.\u003c\/p\u003e\n\u003cp data-end=\"1183\" data-start=\"878\"\u003eThe open-back acoustic structure controls internal reflections and pressure build-up, allowing natural airflow around the driver. This design maintains linear low-frequency extension, a stable midrange and an unforced high-frequency response that preserves spatial information, stereo placement and depth.\u003c\/p\u003e\n\u003ch2 data-end=\"1228\" data-start=\"1185\"\u003e\u003cstrong data-end=\"1228\" data-start=\"1188\"\u003eThin-Ply Carbon Diaphragm Technology\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"1517\" data-start=\"1230\"\u003eAt the centre of the D1 sits the Thin-Ply Carbon Diaphragm, a composite material developed for aerospace and motorsport applications. HEDD integrates this material directly into the dynamic driver structure to create a diaphragm that maintains exceptional rigidity at extremely low mass.\u003c\/p\u003e\n\u003cp data-end=\"1828\" data-start=\"1519\"\u003eThis construction eliminates the need for conventional diaphragm damping. The driver therefore moves with greater precision, faster acceleration and improved stopping control. The result delivers lower distortion, sharper transient articulation and consistent phase behaviour across the full audible spectrum.\u003c\/p\u003e\n\u003ch2 data-end=\"1878\" data-start=\"1830\"\u003e\u003cstrong data-end=\"1878\" data-start=\"1833\"\u003eRe-Engineered Dynamic Driver Architecture\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"2207\" data-start=\"1880\"\u003eHEDD redesigns the entire dynamic driver assembly to achieve studio-grade precision. The compact motor structure improves magnetic flux stability and ensures uniform diaphragm control at all listening levels. This driver architecture maintains tonal neutrality while preserving dynamic headroom and long-term listening comfort.\u003c\/p\u003e\n\u003cp data-end=\"2542\" data-start=\"2209\"\u003eThe headphone reproduces bass content with weight and texture rather than artificial enhancement. The midrange remains linear and transparent, allowing vocal placement and harmonic structure to remain intact. High frequencies extend smoothly beyond the audible range, retaining air and spatial openness without introducing harshness.\u003c\/p\u003e\n\u003ch2 data-end=\"2584\" data-start=\"2544\"\u003e\u003cstrong data-end=\"2584\" data-start=\"2547\"\u003eComfort-Focused Mechanical Design\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"2931\" data-start=\"2586\"\u003eThe D1 weighs 350 grams and balances mass distribution across the headband and earcups to maintain comfort during long sessions. The compact driver assembly reduces physical bulk while maintaining structural rigidity. Perforated velour ear pads regulate heat and airflow, preventing pressure build-up and supporting consistent acoustic coupling.\u003c\/p\u003e\n\u003cp data-end=\"3128\" data-start=\"2933\"\u003eThe mechanical design maintains a stable fit that preserves frequency response consistency during movement, making the D1 suitable for extended mixing, mastering and critical evaluation sessions.\u003c\/p\u003e\n\u003ch2 data-end=\"3166\" data-start=\"3130\"\u003e\u003cstrong data-end=\"3166\" data-start=\"3133\"\u003eUniversal Drive Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"3496\" data-start=\"3168\"\u003eWith a 32 ohm impedance and 100 dB sensitivity, the D1 performs efficiently across portable players, studio interfaces and dedicated headphone amplifiers. The driver design maintains control at low output levels while scaling dynamically with higher-end amplification, preserving transient response and low-frequency definition.\u003c\/p\u003e\n\u003cp data-end=\"3690\" data-start=\"3498\"\u003eDual 3.5 mm inputs support balanced cable routing and professional connectivity. The included textile-covered premium cable maintains flexibility and long-term durability for daily studio use.\u003c\/p\u003e\n\u003ch2 data-end=\"3738\" data-start=\"3692\"\u003e\u003cstrong data-end=\"3738\" data-start=\"3695\"\u003eGerman Manufacturing and Serviceability\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"4050\" data-start=\"3740\"\u003eHEDD manufactures the D1 in Germany with a fully serviceable architecture. The company builds every component for mechanical stability, acoustic consistency and long-term reliability. This approach supports sustainable ownership, extended product life and consistent performance over years of professional use.\u003c\/p\u003e\n\u003ch3 data-end=\"4084\" data-start=\"4052\"\u003e\u003cstrong data-end=\"4084\" data-start=\"4056\"\u003eWhy Choose HEDDphone® D1\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-end=\"4457\" data-start=\"4086\"\u003e\n\u003cli data-end=\"4176\" data-start=\"4086\"\u003e\n\u003cp data-end=\"4176\" data-start=\"4088\"\u003eHear mix balances, spatial depth and transients exactly as they exist in the recording\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"4239\" data-start=\"4177\"\u003e\n\u003cp data-end=\"4239\" data-start=\"4179\"\u003eWork longer without listening fatigue or pressure build-up\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"4322\" data-start=\"4240\"\u003e\n\u003cp data-end=\"4322\" data-start=\"4242\"\u003eUse one headphone across portable rigs, studio interfaces and mastering chains\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"4395\" data-start=\"4323\"\u003e\n\u003cp data-end=\"4395\" data-start=\"4325\"\u003eRely on a mechanically stable design that holds its tuning over time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"4457\" data-start=\"4396\"\u003e\n\u003cp data-end=\"4457\" data-start=\"4398\"\u003eInvest in a fully serviceable German-built reference tool\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KMR Audio","offers":[{"title":"Default Title","offer_id":57827098984831,"sku":null,"price":415.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/4915\/9716\/files\/Hedd-audio-heddphoned1-kmr1.jpg?v=1768495938","url":"https:\/\/kmraudio.com\/products\/hedd-audio-heddphone-d1-b-stock","provider":"KMR Audio","version":"1.0","type":"link"}