Lectrosonics UT400 - Manual (Page 9)

Synthesized UHF Hand-Held Transmitter
Subsonic Noise Filter
In addition to the tone controls, the UT also has a built-
in subsonic noise (or high pass) filter. This filter is fixed
and cannot be adjusted or defeated. Low frequency
noise is much more of a problem with wireless micro­
phones than with conventional microphones. With a
conventional mic, low frequency wind noise, breath
thumps or handling rumble can be filtered out at the
control board before the noise causes problems with
the following electronics or speaker systems. However,
with a wireless microphone, the electronics that will
be overdriven are in the microphone itself. Filtering at
the control board is too late. To solve this problem, the
VariMic TM has a subsonic noise filter that is so sharp
that it can remove low frequency noise without affecting
any wanted vocals. It consists of a 36 dB per octave
filter circuit to sharply remove low frequency noise
below 75 Hz without affecting vocal fundamentals. (For
reference, the lowest operatic bass voice fundamental
is 82 Hz.)
Interchangeable Capsules
Any of these capsules may be included with the UT as
a standard option, or they can be ordered separately:
VMO omnidirectional condenser
The omni capsule is perfect when the talent may need
to be off-axis, such as in an interview situation. Also,
omni capsules by nature are much more immune to
handling, popping and wind noise than directional mi­
crophones. In addition, this capsule has slightly higher
sensitivity than the VMC cardioid capsule.
VMC cardioid condenser
This element has excellent frequency and transient re­
sponse rivaling the top condenser performance micro­
phones on the market. The pickup pattern is a standard
cardioid with exemplary off-axis response, allowing the
talent to move around the microphone without a change
in tone. The extended high-frequency response produc­
es an open, clean sound with excellent intelligibility.
VMS super-cardioid condenser
In applications where maximum gain before feedback
is required, the VMS capsule is the right choice. With its
nearly perfect super-cardioid pattern, the AKG C5900
capsule rejects sounds from the direct rear and rear
sides, while providing a generous frontal “live” area. The
VMS is slightly lower in sensitivity when compared to
the VMC.
VMO Pattern
VMC Pattern
VMS Pattern
Rio Rancho, NM 9