RDL ST-MPA2 Microphone Phantom Adapter (Discontinued)

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. Therefore, the ST‑MPA2 can convert any existing mic input into a phantom powered input.

The power supply input terminals may be fed with any dc voltage from 6 volts to 52 volts. The ST‑MPA2 has an internal pass transistor‑regulator filter circuit which permits this incoming voltage to be adjusted to the desired phantom voltage, up to 92% of the supply input voltage. A multi‑turn trimming potentiometer is provided for you to adjust for the correct phantom voltage. A multi‑turn trimming potentiometer is provided to set the correct phantom voltage.