Soundfield SPS422B, Руководство пользователя

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The SoundField SPS422B Issue 1.7 User Guide
Page 9
GETTING STARTED
The microphone connecting cable is fitted with two threaded 12 pin connectors and these should be
inserted into the microphone and the SPS422B control unit and the threaded collars hand-
tightened. Connect the microphone to the control unit before switching on the mains, and once
powered up, leave the system several minutes to stabilise. The microphone can be attached to the
stand with the provided stand adaptor or alternatively, to provide better isolation from vibration,
the optional SoundField Shock Mount (Part No. HW2909).
For close-up vocal work, it is highly recommended to use the optional SoundField VPS150 Pop
Screen. This should be positionned between 10 and 15 cm from the microphone.
The outputs of the SPS422B control unit should be connected to the line level inputs of the mixing
console or recorder using high quality, balanced XLR screened cables. However, where it is not
possible to access line level inputs, the SPS422B has sufficient gain range to feed mic. level
inputs.
If connecting to mic. level inputs, ensure that the gain on the control unit is turned
fully down (-30 dB) initially.
To configure the microphone as a coincident cardioid stereo pair, set thePattern and Width controls
to their mid-way positions and ensure the
M/S switch is out. Press End if end-fire operation is
required, otherwise leave this button out and use the microphone in side-fire mode. If it is
necessary to suspend the microphone in an inverted position, also press the
Inv button.
The Gain settings should be adjusted while watching the bargraph meters so that peak levels reach
a nominal 0dB on the scale. Gain sets the mic amp gain in 10dB increments from 0 to -30dB while
the Fine Gain control provides continuous adjustment between these steps. An 80Hz, 18dB/octave
high-pass filter may be switched in using the Filter button where low frequency noise (such as
distant traffic or air conditioning rumble) may be a problem.
Orientation Guide
Side Fire Mic
End Fire Mic
Inverted Side Fire Mic
Inverted End Fire Mic
End Switch/Out
Inv Switch/Out
Left
Right
End Switch/Out
Inv Switch/In
Left
Right
End Switch/In
Inv Switch/Out
Left
Right
End Switch/In
Inv Switch/In
Left
Right