<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>
what does the phantom button do on a mixer
DC electric power transmitted through microphone cables to operate microphones that contain active electronic circuitry