Power Supply

N 149 A EU

Power supply for M 147/149/150 Tube


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Power Supply N 149 A EU

The N 149 A power supply generates the necessary operating voltages for M 147 Tube, M 149 Tube or M150 Tube microphones. It operates with all mains voltages from 100 V to 240 V, 50 or 60 Hz. Mains power is connected through a standard IEC 320 socket. The microphone connects via an DIN-8 connector.

The microphone signal is fed to a XLR 3 M connector. The modulation output is balanced. The N 149 A supplies the bias voltages for the microphone capsule, the filament voltage controlled by a sensor circuit, and a further voltage to generate the plate voltage and other necessary operating voltages within the microphone itself.

The unit produces constant current effecting a soft start of the tube. The KT 8 cable between microphone and power supply can be up to 100 m long. Modulation cable lengths up to approx. 300 m are allowed.The three available versions of the N 149 A just differ in their enclosed mains power cable.


Technical Data

Mains voltage EU: 230 V/50 Hz

Mains voltage US: 117 V/60 Hz

Mains voltage UK: 230 V/50 Hz

Output voltages: for M 149 Tube

Power plug: Euro/US/UK H x W x D: 90 x 100 x 145 mm

Weight approx.: 1.5 kg

N 149 A EU

Color black

CAT. NO. 008447

  • N 149 A EU Power Supply

N 149 A US

Color black

CAT. NO. 008446

  • N 149 A US Power Supply

N 149 A UK

Color black

CAT. NO. 8448

  • N 149 A UK Power Supply

WARNING (for California residents only): This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects and other reproductive harm. For more information go to: www.p65warnings.ca.gov.

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