RDL ST-MPA48 Dual Microphone Phantom Adapter - 48 VThe ST MPA48 from RDL 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. Therefore, the ST MPA48 can convert any existing mic input into a 48 Vdc phantom powered input. Phantom voltage is not present on the output