<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2011) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2011) (Learn how and when to remove this template message) </Td> </Tr> <P> Phantom power, in the context of professional audio equipment, is DC electric power transmitted through microphone cables to operate microphones that contain active electronic circuitry . It is best known as a convenient power source for condenser microphones, though many active direct boxes also use it . The technique is also used in other applications where power supply and signal communication take place over the same wires . </P> <P> Phantom power supplies are often built into mixing consoles, microphone preamplifiers and similar equipment . In addition to powering the circuitry of a microphone, traditional condenser microphones also use phantom power for polarizing the microphone's transducer element . </P>

What does the phantom button do on a mixer