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HEDDphone A New Chapter in Headphone Technology

HEDD’s first full range Air Motion Transformer headphones for audiophiles and recording artists worldwide.

The HEDDphone introduces a fourth transducer technology. It brings the enormous dynamic capabilities and the superior sonic resolution of the AMT principle to the world of top-end headphones. HEDDphone excels where it really matters: in accurate, untamed, and touching music reproduction.

“If Mercedes made a headphone this would be it”

Steve Guttenberg The Audiophiliac

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The Air Motion Transformer (AMT) is an electrodynamic transducer that allows to move air significantly faster than common voice coil, magnetostatic (planar) or electrostatic systems. Their traditional piston-like movement is overcome by a folded diaphragm that squeezes out air four times faster: A breakthrough for capturing more details in a musical recording.

30 years ago HEDD CEO and Chief Engineer Klaus Heinz designed the first compact and marketable AMT tweeter based on Oskar Heil’s original Air Motion Transformer invention. Since then he has increased its sonic quality in several fundamental revisions. The 2019 version of the AMT can be heard in HEDD´s innovative Series ONE studio monitor line. Recently Heinz has focused on developing a full range Air Motion Transformer to break new grounds for this superior transducer principle. In order to reproduce the complete audible frequency band (and beyond), the HEDDphone incorporates VVT (pat. pending). VVT introduces a new diaphragm geometry that expands the AMT principle to a linear full range (10Hz–40kHz) headphone transducer. It replaces the fixed geometric structure of conventional AMT drivers as the folds vary both in width and depth.

Technical Data

  • Concept: Open over ear headphone with Air Motion
  • Transformer Efficiency:87 dB SPL for 1 mW
  • Impedance:42 Ω
  • Weight:718 g
  • Connector: Mini XLR

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