Assertion: class d amplifier | /r/ObjectUse | used in 2000
Facets:
value: widely
type: DEGREE
Source sentences:
text: In the 2000s, the Class-D amplifier, which is much more efficient than Class AB amplifiers, is widely used in consumer electronics audio products, bass amplifiers and sound reinforcement system gear, as Class D amplifiers are much lighter in weight and produce much less heat.