Loudspeaker for audio system has flat magnet with moving coil extending into circular slit in magnet and engaging with dome-shaped cover and includes centering members

摘要

The magnet system (4) for the loudspeaker has a flat magnet (3) which is circular with a raised rim. A magnet disk (2) and a pole plate (1) are mounted on the magnet disk. There is an narrow gap (5) between the flange of the magnet and the pole plate an a circular coil (12) fits into this gap. The coil carrier is connected (17) to a flexible mounting strip (16) and the edge of a vibrating dome (20) covering the magnet system. The assembly has a spigot acting as a first centering member (26c) and there is a second centering member.