Assertion: audio amplifier | /r/CapableOf | restrict the high frequency limit
Facets:
value: to 15khz
type: OTHER
value: to less
type: TRANSITIVE-OBJECT
Source sentences:
text: Audio frequency amplifiers are used to amplify signals in the range of human hearing, approximately 20Hz to 20kHz, although some Hi-Fi audio amplifiers extend this range up to around 100kHz, whilst other audio amplifiers may restrict the high frequency limit to 15kHz or less.