UMP III – Universal Microphone Power Supply

Provide your boom pole mics with the necessary power

Ambient UMP-3_front
Ambient UMP-3_top
Ambient UMP-3_top_down
Ambient UMP-3_side
Ambient UMP-3_on_boompole

Power supply for wireless booming | Operate the boom pole microphone on belt pack transmitters | Under 100 gr | Rechargeable NP-50 battery | 12 V or 48 V phantom, 12 V T-power

Manual| Cables

Give your microphone the juice it needs without adding a lot of extra weight to your boom pole:
with our Universal Microphone Power Supply UMP III.

Long run time

UMP stands for Universal Microphone Power Supply. The Ambient UMP series is designed to use Phantom or T-powered microphones on a “wireless boom” with typical belt pack transmitters. The 3rd generation of the UMP is not only easy to operate with one simple button, but provides a run time of several hours on every single charge depending on the microphone used.

Enough power whenever, wherever

The autonomous supply avoids additional drain of the belt pack’s batteries and ensures long battery lifetime plus making the unit compatible with any transmitter with mic-level input. Just mount the UMP III on the boom tip.

Standardized batteries for greener production

Thanks to rechargeable NP-50 batteries you can use the same batteries you already have in your kit for the Lockit, microphones or radio transmitters. Working more green on set has never been easier.

Light as a Feather

Since NP-50 batteries are much slimmer than e.g. AA batteries, the UMP III is very small. We were able to cut its volume and weight by 40 % compared to its predecessor.

High Compatibility

The UMP III is compatible with any transmitter with mic-level input. In- and output connectors let you configure them individually and are keyed against accidental interchange.

LED Interface

A 5-colored LED interface indicates battery status and selected powering modes.


Scope of Delivery
  • Microphone input cable, UMP-IN-EMC
  • NP50 battery
  • USB charging station for NP50 battery
  • USB cable
  • Manual
Accessories sold separately

Transmitter connector cable, UMP-OUT (length = 16 cm) for

  • Micron Explorer
  • Sennheiser EW Series
  • TA3F on ODU 3-pin, TRX
  • Sony DWx
  • Audio Ltd. Mini-TX
  • Shure TA4F
  • Lectrosonics SM
  • Audio Ltd. 20xx

“Wireless Boom”, QWB


Technical Details
Dimensions (WHD): 44 mm x 66 mm x 20 mm
Weight (incl. battery): 100 g
Material: pearl-blasted aluminum, matte black anodized
Powering: 48 V Phantom | 12 V Phantom | 12 V T-power
Power supply: 1 NP-50 rechargeable battery



Audio Output Cable for Audio Ltd.20xx


Audio Output Cable for Lectrosonics UM/SM


Audio Output Cable for Audio Ltd. Mini-TX


Audio Output Cable for Sennheiser SK and Zaxcom TRX900 Serie


Audio Output Cable for Sennheiser EW Serie