Decoupled drive unit for a loudspeaker enclosure

摘要

A loudspeaker enclosure defined by one or more panels housing a drive unit. The drive unit includes a coil, a diaphragm, and a magnet. The magnet is decoupled from the one or more panels of the loudspeaker enclosure. Sound is generated by the movement of the diaphragm and complementary movement of the magnet, on application of an appropriate electrical signal to the coil. The moving diaphragm acts against a first volume of air within the enclosure, while the movement of a surface coupled to the magnet, acts against a second air volume, different from the first volume. The surface coupled to the magnet is decoupled from the one or more panels of the loudspeaker enclosure.

主权项

1. A loudspeaker enclosure housing a drive unit, the enclosure being defined by one or more panels, wherein
the drive unit comprises a coil, a magnet and a diaphragm, the magnet is decoupled from the one or more panels of the loudspeaker enclosure, and the diaphragm is arranged to move, and thereby generate sound which is emitted forwardly of the diaphragm, on application of an appropriate electrical signal to the coil, which also causes a complementary movement of the magnet, wherein the diaphragm is arranged such that when moved by such an electrical signal it acts against a first air volume within the enclosure, the magnet is arranged such that when moved by such an electrical signal a surface coupled to the magnet acts against a second air volume, different from the first air volume, the second air volume extending rearwardly of the magnet and the surface coupled to the magnet is decoupled from the one or more panels of the loudspeaker enclosure.