Assertion: amplifier | /r/HasAspect | a power supply
Facets:
Source sentences:
text: If the amplifier has a power supply which produces plus or minus 20 volts, it will not be able to drive the speakers on a single channel with any more than 20 volts at any point in time.
text: You will notice that the amplifier has a power supply which produces output voltages of (+)35 volts DC and (-)35 volts DC.