Phantom power

Phantom Power is DC electric power sent over the signal lines of a balanced XLR (microphone) cable.

It is most often used at 48V for polarizing the capacitor on a condenser microphone. Most audio interfaces or mixing desks have buttons that will send phantom power to a mic input channel.

Phantom power can potentially damage equipment that does not require it, so engineers should always double check the equipment. Never send phantom power to a ribbon microphone as it can damage the ribbon.



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