Assertion: amplifier | /r/HasAspect | sharp treble roll-off
Facets:
value: to reduce the extreme high frequencies
type: PURPOSE
value: at 5 khz
type: TEMPORAL
value: usually
type: TEMPORAL
Source sentences:
text: These amplifiers usually have a sharp treble roll-off at 5 kHz to reduce the extreme high frequencies, and a bass roll-off at 60–100 Hz to reduce unwanted boominess.