Neumann M 147 Vacuum Tube Condenser Microphone

M 147 Vacuum Tube Condenser Microphone description:

The M 147 Tube is a vacuum tube condenser microphone with cardioid characteristic. At the heart of this microphone is the K 47 dual diaphragm capsule, inherited from this model's now legendary predecessors, the U 47 and the M 49. Following the capsule is a tube that functions as an impedance converter. The next stage is an efficient, transformerless output circuit, that guarantees an extremely low self-noise level. The M 147 Tube can feed extremely long microphone cables without changing the quality of the audio signal. Like all Neumann tube microphones, the M 147 Tube comes with an elegant satin nickel finish.

The microphone is delivered as a complete set in a high-quality aluminum case. Included with the microphone are a microphone cable, a metal swivel mount for a mic stand, and a compact universal power supply for standard mains sockets.

Features:

• Universal tube microphone
• Pressure gradient transducer with the large diaphragm capsule from the legendary U 47 and M 49
• Transformerless circuitry
• Low self noise level
• Comes with swivel stand mount made of metal, universal power supply, and cable in an attractive aluminium case

Specifications:

• Acoustical operating principle: Pressure gradient transducer
• Directional pattern: Cardioid
• Frequency range: 20 Hz - 20 kHz
• Sensitivity at 1 kHz into 1 kohm: 20 mV/Pa
• Rated impedance: 50 ohms
• Rated load impedance: 1000 ohms
• Equivalent SPL CCIR 468-3: 24 dB
• Equivalent SPL DIN/ IEC 651: 12 dB-A
• S/N ratio CCIR 468- 3: 70 dB
• S/N ratio DIN/IEC 651: 82 dB
• Maximum SPL: 114 dB for THD < 0.5 %; 134 dB for THD < 5 %
• Maximum output voltage: 8 dBu
• Dyn. range of the mic. amplifier DIN/IEC 651: 102 dB for THD < 0.5 %; 122 dB for THD < 5 %
• Supply voltage: Power supply N 149 A
• Matching connector: Microphone: DIN 8F; Power Supply: XLR 3F
• Weight: approx. 460g
• Diameter: 57 mm
• Length: 142 mm