Neumann M149

Tube microphone

With nine different directional characteristics, the M 149 Tube can be adapted to very different acoustic recording situations. Like its ancestors, it is particularly suited to speech and song. This is not only due to its capsule, but also to the particularly low equivalent noise level of its modern circuit technology.

The M 149 Tube is discussed from the side. Its front is marked by the company sign and the polar pattern switch. Below the capsule, a dome scatters the sound from the upper hemisphere so that there is no disruptive interference with the direct sound components. The capsule is elastically mounted to protect against structure-borne noise transmission. The capsule is surrounded by the large microphone grille of the old M 49, which is now acoustically more open and therefore more neutral in terms of sound.

There are nine characteristics to choose from: omni, wide cardioid, cardioid, hypercardioid and figure-8, each with an intermediate position.

• Acoustic mode of operation of the pressure gradient receiver
• Polar pattern omnidirectional, wide cardioid, cardioid, hypercardioid, figure-eight and one intermediate position each
• Transmission range: 20 Hz...20 kHz
• Field transmission factor at 1 kHz at 1 kOhm: 34/47/62 mV/Pa (omni/cardioid/figure-of-eight)
• Nominal impedance: 50 ohms
• Rated load impedance: 1000 ohms
• Equivalent noise level CCIR468-3: 28/25/23 dB (omni/cardioid/figure-8)
• Equivalent noise level DIN/IEC651: 16/13/11 dB-A
• Signal to noise ratio CCIR 468-3: 66/69/71 dB
• Sound-to-noise ratio DIN/IEC651: 78/81/83 dB
• Limit sound pressure level (tube characteristic) for K < 0.5% 120 dB / for K < 5% 136 dB
• Maximum output voltage 18 dBu
• Dynamic range of the amplifier DIN/IEC651 for K < 0.5% (K < 5%) : 101 (121) dB
• Power supply power pack N 149
• Weight 730g
• diameter 70mm length 201mm
• incl. Aluminum case, 8-pin microphone cable, N 149 A power pack, EA 170 elastic suspension, dust protection bag

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