- Description
Details
The M 149 Tube is a variable dual-diaphragm microphone. The K 49 capsule – well-known from the legendary U 47 and M 49 microphones – is followed by a tube functioning as an impedance converter. In contrast to earlier concepts – utilizing a transformer – the tube is complemented with a transformerless output circuit design. The M 149 Tube can thus feed long microphone cables without any coloration.
Two slide switches are located below the large, acoustically very open headgrille. The switch at the front allows selection one of nine directional patterns. The slide switch at the rear operates a seven-step high pass filter. It allows a very fine adjustment of the cut-off frequency.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.
The M 149 Tube is addressed from the front, marked with the Neumann logo. Also on the front is the switch for the selection of the polar patterns.
The capsule is mounted elastically inside the headgrille to eliminate structure borne noise. The surface below the capsule is shaped like a cone to disperse any reflected sound from the acoustic upper half space. This avoids any interference with the primary sound arriving at the capsule directly.
A large headgrille surrounds the capsule. It is acoustically very open and therefore increases the sonic realism.- Features
Features
- 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.
- Specification
Acoustical operating principle Pressure gradient transducer Directional pattern Omnidirectional, wide angle cardioid, cardioid, hypercardioid, 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) Equivalent noise level, A-weighted2) 16/13/11 dB-A1) Signal-to-noise ratio, CCIR2) (rel. 94 dB SPL) 66/69/71 dB1) Signal-to-noise ratio, A-weighted2) (rel. 94 dB SPL) 78/81/83 dB1) Typical SPL (tube characteristic)3) 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 Dimensions (Dia. x Length) 2.76" (70 mm) x 7.91" (201 mm) Weight 1.60 lbs (730 g) - Reviews
Write Your Own Review