Lautsprecherkern

Lautsprecherkern, also known as a voice coil former or bobbin, is a crucial component within a loudspeaker's electromagnetic drive system. It is a cylindrical structure, typically made of a lightweight yet rigid material such as paper, plastic, or aluminum, around which the voice coil is wound. This coil is an electrical conductor, usually copper wire, that receives the audio signal. The voice coil is precisely fitted within the magnetic gap of the loudspeaker's permanent magnet. When an electrical current from an amplifier flows through the voice coil, it generates a magnetic field that interacts with the static magnetic field of the permanent magnet. This interaction creates a force that causes the voice coil, and thus the attached cone or diaphragm, to move back and forth. The shape and material of the Lautsprecherkern influence the voice coil's stability, heat dissipation, and overall mechanical integrity, all of which contribute to the loudspeaker's sound reproduction characteristics and efficiency. The precise winding of the wire onto the Lautsprecherkern is critical for ensuring an even magnetic field and accurate pistonic motion of the cone.