Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Tools and Equipment (hierarchy name)
5. equipment
6. [equipment by process]
7. [equipment for transmitting and reproducing sound]
8. audio equipment
9. microphones

Anotations

Scope note:

Microphones that function via a magnet that oscillates within a coil attached to a diaphragm. Sound waves cause the relative motion of the magnet and coil to create an electrical signal by magnetic induction. Dynamic microphones are the most commonly used in recording speech and music, due to their rugged design, but require more gain or amplification to render a signal.