Precision Audio and AV Interface Products

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ST-MPA24 Dual Microphone Phantom Adapter - 24 V Adjustable

  • 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
  • Overview
  • Specifications
  • Related Products
  • Accessories
  • Downloads
  • How to Buy
  • Product Series
  • Dimensions

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.

Applications

Channels:
2
Frequency Response:
20 Hz to 100 kHz (± 0.025 dB, 150 Ω source, 1 kΩ load)
Phantom Voltage:
P24, 24 Vdc
Standard for Phantom:
IEC 61938: 2013
Ambient Operating Environment:
0° C to 55° C
Power Requirement:
GROUND-REFERENCED, 24 Vdc @ 35 mA (with 20 mA load)
Package Type:
Cardboard Box
Package Dimensions:
2 x 2 x 4 in.
Shipping Weight:
0.195 lbs.
WEEE weight:
0.145 lbs.
Tariff code:
8543.70.9860

Documents:
Format
PDF
CAD Files:
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High Res Images:
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Declaration of Conformity:
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A&E Specifications:
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ST-MPA24 ST-MPA24