Abstract: A magnet structure for use with a loudspeaker may have an interlocking mechanism. The magnet structure may include a magnet, a shell pot and a core cap. The shell pot may contain the magnet in its hollow interior. The magnet may be a single magnet or double magnets. The core cap has two surfaces. For a single magnet, one surface of the core cap may face a magnet. For double magnets, the core cap may be vertically disposed between the two magnets. The magnet, the core cap and the shell pot may interlock with one another such that a position of the magnet relative to the core cap and the shell pot may be rigidly preserved. The magnet may be configured to be, for example, overlapped, inserted, staked and/or engaged with at least one of the shell pot or the core cap.