 The
4067 is a flexible miniature microphone solution, that features very
easy and fast adjustment possibilities. The headband construction is
unique in design, because it gives the user the choice between left
and/or right mounting and colour change. It is also possible to use the
MMB4066 Miniature Microphone Boom, Omnidirectional, separately, in
applications where the headband is not needed.
The 4067 offers a clean and transparent sound quality with lots of
headroom.
Attention has been paid to the humidity problems that often occur in
theatrical applications. A double vent protection system, a drop stopper
on the microphone boom, together with water resistant materials inside
the microphone, makes it more than difficult for the humidity to cause
the headband Microphone to fail. The headband surface is matgold plated
and headband earhooks are covered with a silicon hose.
The sensitivity is 1 mV/Pa to match the level of the human voice to the
general input sensitivity of most wireless transmitters. If powered
correctly the microphone will be able to handle sound pressure levels up
to 154 dB SPL before clipping occurs.
A wide range of connection adapters makes it possible to use the 4066
with most of the professional wireless systems available plus 48 V
phantom XLR connection.
4067 is delivered with 3 foam windscreens.
The 4067-B (black) is a low DC and extra low sensitivity version of the
famous Type 4066. The sensitivity is adjusted to 1mV/Pa and the DC
offset in the FET lowered, making matching to systems delivering down to
3 V power supply possible.
| Specification |
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Principle of
operation:
Pressure
Cartridge type:
Pre-polarised condenser element with vertical diaphragm
Power supply:
Min 3 V - max 50 V through DPA adaptor
Frequency range, ± 2 dB:
Soft boost grid: 50 Hz-20 kHz ±2 dB, 3 dB soft boost at
8-20 kHz, lo-cut -10 dB at 20 Hz
High boost grid: 50 Hz-20 kHz ±2 dB, 10 dB boost at 12 kHz,
lo-cut -10 dB at 20 Hz
Directional characteristics:
Omnidirectional
Equivalent noise level A-weighted:
Typ. 31 dB(A) re. 20 µPa (max. 35 dB(A))
Sensitivity, nominal, ±2 dB:
Nominally 1mV/Pa; -60 dB re. 1 V/Pa ± 3 dB at 1 kHz
Equiv. noise level ITU-R BS.468-4:
Typ. 42 dB (max. 44 dB)
|
Total harmonic
distortion (THD):
123 dB SPL peak (<1% THD); 120 dB SPL RMS
sine (<1% THD)
Preamplifier frequency range:
20 Hz to 50 kHz (+0 dB/-3 dB)
Output impedance:
30-40 Ohm
Cable drive capability:
Up to 300 m (984 ft)
Supply voltage:
Min 3 V - max 50 V through DPA adaptor
Max. SPL, peak before clipping:
154 dB SPL peak before clipping
Weight:
14 g (0.49 oz) incl. cable and MicroDot connector
Cable length:
1.8 m (5.9 ft) |
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