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This is our demo unit and in very good condition.HEDD is proud to introduce the first full range Air Motion
Transformer headphones to audiophiles and recording artists worldwide.
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
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
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.
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.
Open over ear headphone with Air Motion Transformer
87 dB SPL for 1 mW
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