HWM (Singapore) - - TEST -

Over 99% of all headphones use what is com­monly known as dy­namic driv­ers. In a dy­namic driver, a metal coil is in­serted into a mag­netic eld and xed to a sus­pended driver cone. When a charge is ap­plied to the coil, it re­acts with the mag­netic eld, caus­ing the driver cone to move and pro­duce sound.

Pla­nar mag­netic driv­ers work very di er­ently. Here, a thin con­duc­tive di­aphragm is typ­i­cally po­si­tioned be­tween two mag­nets. When an elec­tri­cal charge is ap­plied, the di­aphragm re­acts to the mag­netic eld of the mag­nets and moves to pro­duce sound.

So in­stead of fo­cus­ing force on a small part (the voice coil in a dy­namic driver), the mo­tive force is spread across the en­tire di­aphragm. The up­sides to this are in­creased re­spon­sive­ness, a wider fre­quency range, and lower dis­tor­tion. On the other hand, be­cause the mag­nets need to cover the en­tire di­aphragm, pla­nar mag­netic driver headphones can be heavy and bulky. They are usu­ally also quite ine cient and re­quire much more power to drive.

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