Description

The U 47 fet was first manufactured from 1972 to 1986, and since then has been firmly established in the range of microphones used by many well-known studios. In addition to serving as a soloist microphone, it has become legendary especially for the recording of bass-heavy instruments and for the direct miking of loud amps.

The U 47 fet Collectors Edition is a new edition of this classic, issued in the year 2014. For this, Neumann has resumed production of this classic mic, according to the original production documents and schematics. It is supplied with a high-quality wooden case with sophisticated special packaging, and an individual certificate with the serial number of the microphone.

In terms of technical design, the U 47 fet is a condenser microphone with a cardioid directional characteristic and fet 80 circuit technology. Among other things this technology, also used in the U 87, is characterized particularly by a wide dynamic range. The K 47 double large-diaphragm capsule was already employed in the U 47, the legendary tube-based predecessor of the U 47 fet. The K 47 provides a slight boost in the range above 2 kHz.

If required, a switchable low-cut filter raises the lower cutoff frequency electronically from 40 Hz to 140 Hz, thus suppressing undesirable low frequencies (such as impact sound and wind noise), or serving to compensate for the proximity effect. Switchable attenuation can reduce transmission levels by 10 dB, facilitating the processing of very high sound pressure levels of up to 147 dB. In addition, to prevent overloading of the connected preamp, the output signal can be reduced by 6 dB via a switch on the bottom of the microphone.

In order to ensure stable positioning, the microphone is swivel-mounted on an integrated bracket. The bracket stand connector has 5/8"-27 internal thread, with an adapter for 1/2" and 3/8" threads. The microphone cable can be secured at the side of the stand connector, by using the knurled nut to fasten it in the slot (for cable diameters of up to 5 mm). The microphone is available in classic nickel.

Technical data
Acoustical operating principle Pressure gradient transducer
Directional pattern Cardioid
Frequency range 40 Hz ... 16 kHz
Sensitivity at 1 kHz into 1 kohm 8 mV/Pa
Rated impedance 150 ohms
Rated load impedance 1 kohms
Equivalent noise level, CCIR1) 25 dB
Equivalent noise level, A-weighted1) 18 dB-A
Signal-to-noise ratio, CCIR1) (rel. 94 dB SPL) 69 dB
Signal-to-noise ratio, A-weighted1) (rel. 94 dB SPL) 76 dB
Maximum SPL for THD 0.5%2) 137 dB
with preattenuation 147 dB
Max. output voltage for THD < 0.5 % -3.3 dBu
Power Supply (IEC 61938) P48
Current consumption 0.5 mA
Required connector XLR 3 F
Weight 710 g
Diameter 63 mm
Length 160 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
Diagrams

Cardioid

Polardiag_U 47 fet

Cardioid

Frequenzdiag_U 47 fet

Accessories
Microphone Cable IC 3 mt

Microphone Cable IC 3 mt
Microphone cable with double twist (double helix) braiding as shield. Diameter 5 mm, length 10 m. XLR 3 connectors, matte black.

Other cable lengths are available upon request! Cable material without connectors are also available.

Even if very long (Neumann) cables are used, the electroacoustic characteristics of the microphone are not affected.Only with cable lengths well over 300 m a high-frequency roll-off is noticeable.

Order Information

IC 3 mt (10 m) black Cat. No. 006543
Power Supply N 248

Power Supply N 248
The N 248 supplies one stereo microphone, or two mono condenser microphones with 48 V phantom power (P48). All connectors are of XLR 3 type. The audio signal outputs are DC-free. The 5 directional patterns of the TLM 170 R can be remote controlled with rotary switches. The remote control operates by varying the nominal phantom voltage of 48 V over a range of ± 3 V (patented). As in standard operation, cable lengths up to 300 m are permissible. Set to P48, all conventional microphones can be used as well. Even mixed operation is possible, with one channel remote controlling a TLM 170 R, while the second output supplies a conventional microphone.

Technical Data

Mains voltage EU 230V/50 Hz
Mains voltage US 117V/60 Hz
Mains voltage UK 230V/50 Hz
DC voltage input 5...15 V
Power consumption max. 3 VA
DC voltage output 48 V ± 3 V each
Current output max. 5 mA each
H x W x D 38 x 143 x 103 mm
Weight 415 g

Order Information

N 248 black Cat. No. 008537
Battery Supply BS 48 i

Battery Supply BS 48 i
The battery unit supplies one microphone with 48 V phantom powering (P48). The maximum supply current is 5 mA.

The audio output is dc-free. Therefore, no transformer is needed when connecting to unbalanced inputs. The cables couple to the BS 48 i through XLR 3 connectors.

Maximum length of operation depends on the type of battery and the current drain of the microphone. A microphone requiring e.g. 2 mA can be operated at least 20 hours with one alkaline battery.

Technical Data

Output voltage 48 ± 1 Vdc
Maximum current output 5 mA
Battery IEC 6 F 22, 9 V
Weight 270 g (without battery)
H x W x D 37 x 80 x 102 mm

Order Information

BS 48 i black Cat. No. 006494
Battery Supply BS 48 i-2

Battery Supply BS 48 i-2
The battery unit supplies one or two microphones with 48 V phantom powering (P48). The maximum current drain is 5 mA for each microphone. The audio outputs are dc-free. Therefore, no transformer is needed to connect to unbalanced inputs. The unit has two XLR 5 connections which can be split to XLR 3 connectors with AC 20 and AC 21 adapter cables.

Maximum length of operation depends on the type of battery and the current drain of the microphone. A microphone requiring e.g. 2 mA can be operated at least 20 hours with one alkaline battery.

Technical Data

Output voltage 48 ± 1 Vdc
Maximum current output 2 x 5 mA
Battery IEC 6 F 22, 9 V
Weight 310 g (without battery)
H x W x D 37 x 80 x 102 mm

Order Information

BS 48 i-2 black Cat. No. 006496
Double Mount DS 120

Double Mount DS 120
The DS 120 has a 150 mm long support bar with two movable 1/2" threaded studs. Two microphones in their mounts can be attached. Any space or angle between the microphones is freely adjustable.

The DS 120 has a 5/8"-27 female thread, plus a thread adapter to connect to 1/2"- and 3/8" stands.

Order Information

DS 120 black Cat. No. 007343
Table Stand MF 3

Table Stand MF 3
The MF 3 is a table stand with iron base, 1.6 kg in weight, 110 mm in diameter. It has a black matte finish. The bottom is fitted with a non-slip rubber disk. The stand comes with a reversible stud and an adapter for 1/2" and 3/8" threads.

See also stand extensions STV.

Order Information

MF 3 black Cat. No. 007321
Table Stand MF 4

Table Stand MF 4
Floor stand with gray cast iron base. The floor stand has a matt black finish and rests on a non-skid rubber disk attached to the bottom. A reversible stud and a reducer for 1/2" and 3/8" threads are also supplied. Weight 2.6 kg, diameter 160 mm.

Order Information

MF 4 black Cat. No. 007337
Table Stand MF 5

Table Stand MF 5
Floor stand with gray soft-touch powder coating. It has a non-skid sound-absorbing rubber disk attached to the bottom. The stand connection has a 3/8" thread. Weight 2.7 kg, diameter 250 mm.

Order Information

MF 5 black Cat. No. 008489
Stand Extension STV 4/20/40/60

Stand Extension STV 4/20/40/60
The STV... stand extensions are screwed between microphone stands (for example MF 4, MF 5) and swivel mounts (for example SG 21 bk).

Length 40, 200, 400 or 600 mm. Diameter: 19 mm.

Order Information

STV 4 black Cat. No. 006190
STV 20 black Cat. No. 006187
STV 40 black Cat. No. 006188
STV 60 black Cat. No. 006189
Popscreen PS 15

Popscreen PS 15
Pop screens provide excellent suppression of so-called pop noise, such as "p" or "t". They consist of a round, thin frame covered with black gauze on both sides. A gooseneck of about 30 cm (12") in length is mounted at the popshield. It will be attached to microphone stands by means of a clamp with a knurled screw.

The frame is 15 cm in diameter.

Order Information

PS 15 black Cat. No. 008472
Popscreen PS 15

Popscreen PS 20 a
Pop screens provide excellent suppression of so-called pop noise, such as "p" or "t". They consist of a round, thin frame covered with black gauze on both sides. A gooseneck of about 30 cm (12") in length is mounted at the popshield. It will be attached to microphone stands by means of a clamp with a knurled screw.

The frame is 20 cm in diameter.

Order Information

PS 20 a black Cat. No. 008488
Windscreen WS 47

Windscreen WS 47
Close range sounds, wind, and fast movements of the microphone boom, all may cause interfering noises. To avoid these unwanted sounds, windscreen accessories are available. Typically, they are made out of open-cell polyurethane foam. These windscreens do not cause interfering resonances and do not influence the directional pattern. Only in the upper frequency range is the output level slightly attenuated. The wind noise attenuation was measured without electrical filtering in a turbulent air stream traveling at 20 km/h, generated by a noiseless wind machine.

Wind noise attenuation 22 dB. Attenuation at 15 kHz 3 dB.Diameter 120 mm. Color black.

Order Information

WS 47 black Cat. No. 006826