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Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups
(AREA)
Abstract
Improvements in the manufacture of dynamic loudspeakers, characterized in that the vibrating cone is formed by two zones of different conicity and concentric, of which one reproduces with ease the acute zones of the range of audible frequencies, presenting the shape of a concentric ring , while the other reproduces easily the serious zones, being its form that of a cynical circular crown, the motor system being formed by a magnet whose magnetic circuit presents a flattened structure, of approximately discoidal characteristics in its geometry, which allows the realization of a highly flat structure and of reduced length in the direction of its axis, since said motor system is arranged between the frame of the loudspeaker and said double cone. (Machine-translation by Google Translate, not legally binding)
ES284102A1963-01-041963-01-04Improvements in the manufacture of dynamic loudspeakers (Machine-translation by Google Translate, not legally binding)
ExpiredES284102A1
(en)