Ask Industries Societa Per Azioni

Andrea Falcioni

Carlo Sancisi

Dario Cinanni

Francesco Violi

Pietro Massini

Gaspare Gramaccia

A loudspeaker with vibration control system includes: a magnetic assembly with an air gap, a voice coil supported by a cylindrical support, a basket connected to the magnetic assembly, a centering device connected to the basket and to the cylindrical support, a membrane connected to the basket and to the cylindrical support, an external cylinder disposed around the magnetic assembly, at least one control coil supported by the external cylinder and directed towards the magnetic assembly, at least one elastic suspension connected to the external cylinder to permit an axial movement of the external cylinder with respect to the magnetic assembly.

Loudspeaker with vibration control system

A shaker transducer is disclosed, which comprises a magnetic unit () composed of a magnet () disposed between a first polar plate () and a second polar plate () in such a way to generate a toroidal air gap (). A sound coil () is disposed in the air gap () to move axially and a centering element () is fixed to the coil to maintain it centered with respect to the magnetic unit (). A rigid element () comprising a shank () fixed to said cylindrical support () of the sound coil and adapted to be anchored to a surface to transfer the sound vibrations generated by the magnetic unit (). The centering element () comprises a central cylindrical shank () fixed to the coil, a peripheral shank () fixed to the second polar plate () and a plurality of elastic spokes () disposed between said central shank () and said peripheral shank ().

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Senigallia, Italy

Andrea Falcioni