Neumann M 149 Studio Tube Condenser Microphone

Variable Dual-Diaphragm Vacuum Tube Microphone
There are nine polar patterns to choose from, making this microphone an ideal choice for a wide range of recording situations.  As its ancestors, the M 149 Tube is a superb vocalist microphone, not only because of the capsule, but also due to its modern circuitry, characterized by extremely low noise level.
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Neumann’s M 149 Tube is a vacuum tube condenser microphone that still enjoys a cardioid characteristic. The K 47 dual diaphragm capsule takes pride of place at the foundation of this the M 149’s mechanics, a component inherited from this model's now mythical predecessors, the U 47 and the M 49.

Operating as an impedance converter, a tube comes after the capsule. Guaranteeing an exceptionally low self-noise level, the next stage is an efficient, transformerless output circuit. This pioneering combination of current tube technology with the most advanced solid-state circuitry was critical in awarding the 1997 TEC Award to the related M 149 Tube mic.

Like all Neumann tube microphones, the M 149 Tube comes with a stylish satin nickel finish. The M 149 Tube can also link tremendously long microphone cables without affecting the quality of the audio signal. Additionally, it has a flat frequency response from 20 Hz to well above 20 kHz and selects a high-pass filter, advancing in half-octave steps between 20 Hz and 160 Hz (-3dB).

The microphone is shipped as a complete set in a premium aluminium case. Included with the microphone are a cable, metal swivel mount for a mic stand and a compact universal power supply for standard mains sockets. 

  • Switchable tube microphone
  • Transformerless circuitry
  • High output level
  • Pressure gradient transducer with the M 49 capsule
  • Acoustically very open wire mesh cage
  • Nine directional characteristics: omni, wide angle cardioid, cardioid, hypercardioid, figure 8, and one intermediate position each
  • 7fold switchable low frequency roll-off
More Information

Acoustical operating principle: Pressure gradient transducer

Directional pattern: Omnidirectional, wide angle cardioid, cardioid, hypercardioid, figure-8 plus one intermediate position each

Frequency range: 20 Hz ... 20 kHz

Sensitivity at 1 kHz into 1 kohm: 34/47/62 mV/Pa1)

Rated impedance: 50 ohms

Rated load impedance: 1 kohms

Equivalent noise level, CCIR2): 28/25/23 dB1)

Signal-to-noise ratio, (rel. 94 dB SPL): 66/69/71 dB1)

Typical SPL (tube characteristic): K < 0,5 %: 120 dB, K < 5 %: 136 dB

Maximum output voltage: 18 dBu

Dynamic range of the microphone amplifier (A-weighted): for < 0,5% THD (for < 5% THD) 101 (121) dB

Powering: Power supply N 149 A

Matching connectors: Microphone DIN8F, Power supply XLR3F


Weight and Dimensions

  • Weight: 730 g
  • Diameter: 70 mm
  • Length: 201 mm
  • M 149 Tube Microphone
  • N 149 A Power supply incl. power cable
  • KT 8 Connecting cable
  • EA 170 Elastic suspension
  • Aluminium case
  • Dust cover