MAGNETIC CIRCUIT AND ACOUSTIC EQUIPMENT

摘要

Provided is a magnetic circuit which is reduced in size and thickness and has a high sound pressure and a simple structure. The magnetic circuit is provided with a horizontal coil wound in the horizontal direction and a single magnet which faces the horizontal coil on the surface. The magnet is provided with a first polar portion, and a second polar portion adjacent to the first polar portion. The first polar portion and the second polar portion are magnetized in opposite directions with respect to the center axis direction of the horizontal coil. The second polar portion is arranged between one region of the first polar portion and other region of the first polar portion on the horizontal surface of the magnet.