Air Motion Transformers
are a special type of tweeter systems which have been developed by the German physicist Oskar Heil during his research on the characteristics of the human ear. The main feature is a film-covered cone with a special folding which vibrates like an accordion when an audio signal is applied. This folding allows to accommodate a large cone area at a minimum of space. The AMTs feature a dynamic sound, an excellent transient response, a high efficiency and a low harmonic distortion.
There are 2 STL files available for the AIRMT-130 for 3D printed waveguides.
High-end Air Motion Transformer tweeter, 20 W, 4 Ω

• Tweeter based on the principle of Air Motion Transformer
• High-performance neodymium magnet system
• Fine, dynamic and brilliant reproduction of the high frequencies
• Folded cone made of Kapton and aluminium
• High efficiency
• For use from 2,500 Hz on
• Robust aluminium front panel

Klang+Ton 08,09/2016
“Compact AMT with quite a low crossover frequency possible for two-way speaker systems and multi-way speaker systems of highest quality.”