Ohmic Audio

Speaker Anatomy Cross-Section

Detailed woofer cross-section labeling dust cap, cone, surround, spider, voice coil former, voice coil windings, top plate, magnet, back plate, pole piece, basket frame, and terminal cup
This cross-section shows the speaker as a layered system: the cone assembly moves air, the suspension keeps motion centered, the magnetic circuit provides force, and the frame plus terminals hold the whole motor together.

Key components and their roles:

Component Material Function
Cone Paper, polypropylene, aluminum, Kevlar Moves air to create sound
Surround Foam, rubber, cloth Allows cone travel, returns to center
Spider Treated fabric Primary centering, spring force
Voice coil Aluminum or copper wire Converts electrical to mechanical
Magnet Ferrite or neodymium Creates static magnetic field
Pole piece Steel Focuses magnetic field through gap
Basket Stamped or cast aluminum Structural support