What is the difference between output voltage and phantom power?

Question

Audio

The characteristics of the amplifier for the microphone indicate:
Phantom power: 48 V
Output voltage: 18 V, 600 mA

I am not strong in sound engineering - I just wondered why these values ​​\u200b\u200bdifference.

Answer 1

Phantom power is a way of supplying power to microphones that need it (condenser ones in particular). That is, this is the voltage that the amplifier outputs towards the microphone.
And the second parameters are the voltage that the amplifier gives to the speaker, most likely, these are the root mean square values ​​of the current and voltage on a sinusoidal signal with a frequency of 1 kHz