The ST-MPA2 contains two identical phantom power circuits and a common power supply input. If only one mic input is to be converted for phantom operation, only one circuit needs to be used. Each circuit has a mic input and a mic output.
Phantom voltage appears on each of the mic input terminals.
There is no voltage on the mic output terminals. The power supply input terminals may be fed with any dc voltage from 6 volts to 52 volts. A multi-turn trimming potentiometer is provided for you to adjust for the correct phantom voltage. Power Supply Ripple Rej. Specifications subject to change without notice.