Assertion: electrostatic speaker | /r/HasAspect | thin moving plate
Facets:
value: in practice
type: TEMPORAL
value: very
type: DEGREE
Source sentences:
text: In practice, electrostatic speakers have two fixed plates on either side and a very thin moving plate (the diaphragm) that vibrates in between them, which is analogous to the moving cone in a traditional magnetic loudspeaker.