The Air Motion Transformer (AMT) is a loudspeaker mechanism, or audio transducer, invented by Dr. Oskar Heil. It operates on a different principle than other electrodynamic systems, such as moving coil, planar magnetic, true ribbon, and electrostatic speaker drivers. The AMT moves air in an augmented, semi-perpendicular motion using a folded sheet (made of polyethylene, polyester or polyimide), structured around a series of aluminum struts positioned in a high-intensity magnetic field.
Read more about Air Motion Transformer: How It Works, Application/use, Consumer Products, Heil's "Air Motion Transformer" US Patents
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—William Shakespeare (1564–1616)
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—Ernst Fischer (1899–1972)