Neumann KU 100 Binaural Dummy Head Stereo Microphone

The KU 100 is a dummy head microphone for a truly immersive binaural listening experience with headphones. Although it uses only two channels, its spatial depiction appears three dimensional and shockingly realistic. The KU 100 can be used to great effect in music and audio drama productions. Moreover, KU 100 recordings are loudspeaker compatible.

Conventional recording techniques attempt to transfer an acoustic event into the listener’s environment. The result is often dissatisfactory because the original room is put into a second room. Dummy head recordings are a much more immediate experience, because they transfer the listener into the environment the acoustic event originally took place. Moreover, head related stereo recordings are truly immersive
While conventional stereo recordings are limited to left and right and, at best, a sense of depth behind those speakers, head related recordings create a three dimensional sonic image surrounding the listener.

The KU 100 dummy head is a binaural stereo microphone. Two omnidirectional condenser capsules are built into artificial ears mounted on an enclosure resembling a human head. KU 100 recordings played back over high quality headphones thus give the listeners an experience almost identical to what they would have heard with their own ears at the recording position, with stunning lateral and vertical localization and a breathtaking sense of space and a room decay that surrounds the listener. Immersive sound has never been easier
Simply place the KU 100 at the optimal listening position! Unlike older dummy head microphones, the KU 100 is compatible with loudspeaker playback, too, creating a stereo image similar to conventional microphones yet with a superior sense of space and depth.

Thanks to its state-of-the-art transformerless circuitry, the KU 100 has very low self-noise and can handle high sound pressure levels of up to 135 dB without audible distortion and up to 145 dB with the -10 dB preattenuation switch activated. A second switch offers three low cut options, 150 Hz, 40 Hz, and linear. Both switches affect both channels. The KU 100 has a balanced XLR 5 stereo output and unbalanced BNC outputs. Three powering options are available
P48 phantom power, internal battery, and external PSU (included).

Technical Specifications

Acoustical operating principle
Pressure transducer
Directional Pattern
Ear
Frequency Range
20 Hz ... 20 kHz
Sensitivity at 1 kHz into 1 kohm
20 mV/Pa
Rated Impedance
50 ohms balanced, 200 ohms unbalanced
Rated load impedance
1 kohms
Equivalent noise level, CCIR 1
29 dB (23 dB lt. BA)
Equivalent noise level, A-weighted 2
16 dB-A
Maximum SPL for THD 0.5% 3
135 dB
Maximum SPL for THD 0.5% with preattenuation 4
145 dB
Signal-to-noise ratio, CCIR (re. 94 dB SPL) 5
65 dB
Signal-to-noise ratio, A-weighted (re. 94 dB SPL) 6
78 dB
Maximum output voltage
8 dBu
Supply voltage (P48, IEC 61938)
48 V +/- 4 V / 6 x 1.5 V
Current consumption (P48, IEC 61938)
2 x 3.5 mA
Battery supply
6 x 1.5 V (AA) “round cell”
External power supply unit (supplied)
9 V
Matching connector
XLR 3 F / XLR 5 F
Weight KU 100 without batteries
approx. 3500 g
Weight with carrying case
approx. 9500 g
Height
280 mm / 360 mm (case)
Width
180 mm / 390 mm (case)
Depth
220 mm / 260 mm (case)