RDL ST-MPA24 Dual Microphone Phantom Adapter

RDL ST-MPA24 Dual Microphone Phantom AdapterThe ST MPA24 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 MPA24 can convert any existing mic input into a phantom powered input. Module operation is

The ST-MPA24 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-MPA24 can convert any existing mic input into a phantom powered input.

Module operation is from a 24 Vdc ground referenced power supply. The ST-MPA24 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 to reduce the phantom voltage if desired. In the default fully clockwise position, the ST-MPA24 provides "P24" 24 Vdc phantom voltage conformant to IEC 61938.

Specifications

• Add Phantom Powered Mics to Standard Inputs
• Two Phantom Adapters in One Module
• P24 per IEC 61938
• Phantom Conversion with Full Frequency Response
• Phantom Voltage Adjustable Up to IEC Standard 24 Vdc
• Highly-Filtered Phantom Power