Assertion: hi fi audio amplifier | /r/CapableOf | extend this range
Facets:
value: up ranges
type: OTHER
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.
text: Some Hi-Fi audio amplifiers extend this range up to around 100 kHz ranges while other audio amplifiers may restrict the high frequency limit to 15 kHz or less.