{"product_id":"hedd-heddphone-reference-open-back-amt-studio-headphones","title":"HEDD HEDDphone Reference Open-Back AMT Studio Headphones","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003eHEDD HEDDphone\u003c\/strong\u003e\u003cspan\u003e are premium open-back reference headphones built around a full-range \u003c\/span\u003e\u003cstrong\u003eAir Motion Transformer (AMT)\u003c\/strong\u003e\u003cspan\u003e rather than a conventional dynamic or planar magnetic driver. Developed for critical studio monitoring and high-resolution listening, they extend HEDD Audio’s AMT expertise from professional loudspeakers into a full-range headphone system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt the heart of HEDDphone is the \u003c\/span\u003e\u003cstrong\u003eAir Motion Transformer\u003c\/strong\u003e\u003cspan\u003e, an electrodynamic transducer based on a folded diaphragm. Instead of moving back and forth like a conventional piston-style driver, the diaphragm folds compress and expand, forcing air between them. This architecture enables exceptionally rapid air movement and fast transient behaviour.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTo adapt the AMT principle from its traditional high-frequency role to full-range headphone reproduction, HEDD developed \u003c\/span\u003e\u003cstrong\u003eVVT — Variable Velocity Transform\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003etechnology. VVT introduces a modified diaphragm geometry in which the folds vary in both width and depth, allowing the AMT principle to operate across a much broader frequency range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe resulting \u003c\/span\u003e\u003cstrong\u003efull-range AMT driver\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003eis designed to reproduce fine transient information with high precision while maintaining control from deep bass through the upper frequencies. Its architecture places particular emphasis on speed, resolution and the accurate reproduction of small dynamic changes within a recording.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe open-back construction allows the transducers to interact freely with the surrounding air and minimizes acoustic reflections inside the earcups. This contributes to a spacious presentation with clearly defined depth and separation, particularly useful when evaluating stereo placement, ambience and complex arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a specified frequency response of \u003c\/span\u003e\u003cstrong\u003e10 Hz to 49 kHz\u003c\/strong\u003e\u003cspan\u003e, HEDDphone extends considerably beyond the conventional audible spectrum. The combination of the full-range AMT and VVT architecture is designed to maintain detailed reproduction across this unusually broad operating range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAn impedance of \u003c\/span\u003e\u003cstrong\u003e42 ohms\u003c\/strong\u003e\u003cspan\u003e is combined with a relatively low sensitivity of \u003c\/span\u003e\u003cstrong\u003e87 dB SPL \/ 1 mW\u003c\/strong\u003e\u003cspan\u003e. While the impedance itself is moderate, the sensitivity means HEDDphone benefit from a capable headphone amplifier able to provide sufficient power and headroom, particularly for demanding studio or high-resolution listening applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe headphones use a \u003c\/span\u003e\u003cstrong\u003edual Mini XLR cable connection\u003c\/strong\u003e\u003cspan\u003e, providing separate connections to the left and right earcups. This professional connection architecture also facilitates cable replacement and integration with different high-end monitoring configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe HEDDphone concept builds on decades of AMT development associated with HEDD founder and engineer \u003c\/span\u003e\u003cstrong\u003eKlaus Heinz\u003c\/strong\u003e\u003cspan\u003e, whose work evolved the original Air Motion Transformer principle developed by Oskar Heil. In HEDDphone, that technology is implemented as a broadband transducer rather than being limited to a tweeter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBy combining a full-range Air Motion Transformer, VVT diaphragm geometry and open-back architecture, the\u003cstrong\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eHEDD HEDDphone\u003c\/strong\u003e\u003cspan\u003e provide an unconventional reference monitoring system for producers, engineers and demanding listeners who prioritize transient precision, spatial information and high-resolution reproduction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eBrand: HEDD Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eModel: HEDDphone\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eType: reference studio headphones\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eAcoustic design: open-back\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eForm factor: over-ear\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eTransducer type: full-range Air Motion Transformer (AMT)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eDiaphragm technology: Variable Velocity Transform (VVT)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eFrequency response: 10 Hz – 49 kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eImpedance: 42 Ω\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eSensitivity: 87 dB SPL \/ 1 mW\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eCable connection: 2 × Mini XLR\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eCable system: dual-entry\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003eSignal connection: analogue\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"docx-num-1-0\"\u003e\u003cspan\u003ePrimary applications: critical monitoring, professional studio work and high-resolution listening\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":52634459177176,"sku":null,"price":32020.0,"currency_code":"CZK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/3045\/5000\/files\/20200728203436-920x920_2.jpg?v=1791227342","url":"https:\/\/zvukovagalerie.com\/en\/products\/hedd-heddphone-reference-open-back-amt-studio-headphones","provider":"Zvuková Galerie","version":"1.0","type":"link"}