Neumann M 150 Tube Neumann

M 150 Tube

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.

Since the 1950s, the Neumann M 50 has been heralded as the ideal microphone for orchestral recording and string scoring. With its phenomenal transient response and unique directional characteristic, this classic mic has endeared many fans, both in the control room and on the soundstage.

The new M 150 Tube* takes many of the features from the original M 50 and incorporates them in a very modern microphone. With low self noise, a Titanium membrane and capsule, transformerless tube amplifier and sophisticated power supply, the M 150 Tube is not a reissue but an entirely new microphone in its own right.

Acoustical features
The Titanium diaphragm of the pressure capsule is 12 mm in diameter and is exceedingly thin. Although Titanium has been known to have unique and desirable characteristics for some time, it has, until very recently, been very difficult to procure in the quality necessary for use in a microphone of this type.

The headgrille is shaped just like that on the original M 50, as requested by various top engineers in the recording industry. Due to mounting the pressure capsule with the diaphragm flush to the surface of a small (40 mm) sphere, the directional characteristic of the M 150 Tube is entirely unique.

At the lowest frequencies, this system is a pure omnipressure transducer with a perfectly circular polar pattern. However, in the mid- and upper frequencies, the pickup pattern becomes more narrow. The M 150 Tube is an ideal microphone for any stereo, 5.1 or 7.1 surround recording, particularly DECCA Tree technique.

Electrical features
The dynamic range of the M 150 Tube is 119 dB, allowing reproduction of the full musical expression, without restraint.

With a low self noise of 15 dB-A, more gain can be used without risk of adding noise to the final product. The transformerless output circuit of this microphone allows for extremely fine reproduction of small signals and low frequency information. Also, long cable runs can be used with no loss of signal quality.

Filter and pre-attenuation
At the rear of the microphone is a –10 dB switch and a switchable footfall filter for the attenuation of frequencies below 40 Hz. In the position “LIN”, a limit frequency of 16 Hz is made active. This is mainly to protect the console inputs from the effects of sub-audio noise (e.g. strong air currents). The –10 dB function is effected by voltage division and should be used only where the danger of over-loading follow-on equipment with very high signal levels is present. This switch does not extend the dynamic range of the microphone, but shifts the output level down by 10 dB.
*The design of the microphone is a registered design of the Georg Neumann GmbH in certain countries.

Features

All Titanium capsule

Unparalleled transient accuracy

Pressure omni capsule for extended low frequency response

Modern version of the world-famous M 50

Transformerless tube amplifier based on the award-winning M 149 Tube microphone

Ideal for DECCA tree recording and surround miking techniques

Very low self noise of 15 dB-A

Stereo sets with consecutive serial numbers

 

Technical Data

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
______________________________________________ 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

 

Accessories

Adapter Cable AC 25
Auditorium Hanger MNV 87 (mt)
Boom Attachment M 212 c
Elastic Suspension EA 170 (mt)
Floor Stand MF 5
Microphone Cable IC 3 mt
Microphone Cable KT 8
Popscreen PS 15
Popscreen PS 20 a
Power Supply N 149 A
Stand M 210/1
Stand M 214/1
Stand M 252
Stand Extension STV 4/20/40/60
Stand Mount SG 2
Table Stand MF 3
Table Stand MF 4
Vertical Bar MZEF 8060/8120