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Neumann M149 Tube Microphone Kit
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.
The Neumann M149TUBE Nine-Pattern Tube Mic with K49 Capsule, Seven Filter Positions, includes N149A, EA170, KT8 and Case | Nickel 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.
Features
- Switchable tube microphone
- Pressure gradient transducer with the M 49
- Transformerless circuitry
- High output level
- Acoustically very open wire mesh cageNine directional characteristics: omni, wide angle cardioid, cardioid, hypercardioid, figure 8, and one intermediate position each
- 7fold switchable low frequency roll-off
Product Specs
| 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) |
| 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 |
| Powering | Power supply N 149 A |
| Matching connectors | Microphone DIN8F, Power supply XLR3F |
| Weight | 730 g |
| Diameter | 70 mm |
| Length | 201 mm |
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