Focusrite vocaster two User Manual page 13

EXAMPLES OF USE
Recording with microphones (cont.)
Vocaster Two can provide phantom power (48 volts) at the XLR inputs
if you're using a condenser microphone. To enable phantom power,
press the Host or Guest button to select the input and push the
48V button on the rear panel: the 48V LED lights red to confirm it's
active.
Dynamic microphones don't require phantom power. It's rare, but
you can damage some microphones using phantom power. We
recommend turning off phantom power when you use a dynamic
microphone. If you are unsure whether your microphone needs
phantom power, please check its documentation.
Microphone setup
Vocaster Two has two ways of setting the correct microphone levels.
'Gain' is the term we use to describe how much you are boosting a
microphone signal.
You can either set the level automatically with Vocaster Two's Auto
Gain feature, or manually. Both methods are described in the next
sections.
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