Assertion: speaker's impedance | /r/CapableOf | vary by frequency
Facets:
value: widely
type: DEGREE
Source sentences:
text: This transformer also multiplies the capacitive load that is inherent in electrostatic transducers, which means the effective impedance presented to the power amplifiers varies widely by frequency.
text: It's never a fixed number, a 6 ohm speaker may be, on average 6 ohms, but its actual impedance varies with the frequency the speaker is reproducing at any given instant.