Neumann KU 100 Dummy Head Binaural Microphone System
The KU 100 dummy head is a binaural stereo microphone.
It resembles the human head and has two microphone capsules built into the ears.
When listening through high-quality headphones it gives the illusion of being right at the
scene of the acoustic events.
When using the KU 100 dummy head, the binaural stereo experience moves the listener
into the scene of the original performance, in contrast to other space-related recording
techniques, where the acoustic event is moved to the listener.
The dummy head is also used in many industrial applications as a measuring device,
for example in acoustic research. The KU 100 can be operated with typical 48 V phantom powering,
or from an external power supply unit, or from the built-in battery.
At the bottom of the unit is a switch for the different power supply modes,
as well as connectors for balanced and unbalanced output signals.
Inside the head are additional switches for 10 dB attenuation and the high-pass filter.
The KU 100 dummy head is a replica of the human head with a microphone built into each ear.
When the recorded audio signal is reproduced through high-quality headphones the listener perceives
a sound image almost identical to the one he would have heard at the recording location
of the dummy head (head-related stereophony).
When played back through loudspeakers, the sound matches to a high degree that of
conventional stereo microphones, placed in the same position.
However, a superior quality is added, that of a distinct spatial depth perception.
The KU 100 uses transformerless circuitry with the advantage of high output capability,
fast transient response, and extremely low self noise. The usual output transformers are replaced
by electronic circuits. As with traditional transformers, this technique ensures good common mode
rejection, and prevents RF interference, that may influence the balanced audio signals.
The dummy head provides balanced (XLR) and unbalanced (BNC) outputs. It
can be powered in three different modes:
- An external P 48 phantom power supply
- Batteries as part of the internal battery supply
- An external AC mains supply (included with the system).
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