Tube microphone M 150 Tube: Detail view

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A redesigned classic with state-of-the-art circuit technology and correspondingly low self-noise. Like the legendary M 50, this tube microphone is ideal for orchestral recording.
Zoom: Tube microphone M 150 Tube
Acoustical operating principle Pressure transducer
Directional pattern Omnidirectional
Frequency range 20 Hz ... 20 kHz
Sensitivity at 1 kHz into 1 kohm 20 mV/Pa
Rated impedance 50 ohms
Rated load impedance 1 kohms
Equivalent noise level, CCIR1) 28 dB
Equivalent noise level, A-weighted1) 15 dB-A
Signal-to-noise ratio, CCIR1) (rel. 94 dB SPL) 66 dB
Signal-to-noise ratio, A-weighted1) (rel. 94 dB SPL) 79 dB
Typical SPL (tube characteristic)2) K < 0,5 %: 114 dB, K < 5 %: 134 dB
Maximum output voltage 8 dBu
Powering Power supply N 149 A
Matching connector microphone DIN8F
Matching connector power supply XLR3F
Weight 800 g
Diameter 78 mm
Length 165 mm
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1) according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS
2) measured as equivalent el. input signal



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