Assertion: speaker | /r/CapableOf | use multiple drivers
Facets:
value: to cover a wide audio range
type: PURPOSE
Source sentences:
text: Loudspeaker time-alignment usually simply referred to as "time-alignment" or "Time-Align" is a term applied in loudspeaker systems which use multiple drivers (like woofer, mid-range and tweeter) to cover a wide audio range.