This is typically comprised of front and rear enclosures that are clamped on either side of the speaker and its mounting frame, as shown in figure 2. When an audio signal is applied to the voice coil, the cone moves relative to the rest of the assembly and generates pressure waves that are detected as sound.Ī housing is needed to hold the speaker securely and protect the mechanism against physical damage. The front suspension is attached to a speaker frame, which in turn is attached to the magnet structure. The paper or Mylar cone is held by front and rear suspension mechanisms and attached to a voice coil suspended in the field of a fixed permanent magnet. Miniature electromagnetic speaker constructionĪs conventional electromagnetic speakers, they are constructed as shown in figure 1.
Other choices include conventional wire connections, or surface-mount speakers that are compatible with high volume manufacturing processes and capable of withstanding reflow-soldering temperatures.įigure 1.
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