SoundCraft SPIRIT POWERSTATION, Руководство пользователя

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4 GAIN CONTROL
When the Microphone input is selected this control acts as a
SENSITIVITY control covering a 60dB range. Channel signal
level increases as the control is turned clockwise. The control
is a custom design which distributes the gain evenly across
the range. When the Line input is selected it serves as a GAIN
control, with the scaling reduced by approximately 20dB. The
control range suits both professional equipment operating at a
n4dBu or semi-professional equipment operating at a
lower -10dBV.
5 HI-PASS FILTER
Pressing this switch inserts a 3rd order, 18dB per octave
100Hz Hi-Pass Filter in the signal path, immediately after the
input amplifier. This is particularly useful on live vocals to
reduce stage rumble or ‘popping’ from mics, and its use is
strongly recommended, even on male vocals. It can also be
used for filtering out low frequency hum.
6 EQUALISER
The Equaliser(EQ) comprises three sections.
The upper control provides H.F. (treble) boost and cut of
15dB. Turning to the right provides boost, adding crispness
to vocals and electronic instruments. Turning to the left cuts
the same frequencies, reducing hiss or distorted consonants
which can occur with certain types of microphone.
The middle pair of knobs is arranged as a cut/boost control
(lower knob) of +/- 15dB, and a SWEEP (frequency) control
which determines at which frequency the boost/cut action
will be centered. This section, with a frequency range from
250Hz to 6kHz is particularly versatile for vocals, enabling
particular characteristics of the singer to be lifted or
suppressed very precisely.
The lowest knob is an LF (bass) section providing boost and
cut of 15dB. Turning to the right provides boost, adding
warmth to vocals or extra punch to synths, guitars or drums.
Turning to the left can be helpful to reduce stage rumble or to
improve a mushy sound, although the Hi-Pass Filter will
often be found more effective for this purpose. Combining
the Hi-Pass Filter and bass boost is a good way of providing
warmth to a sound without rumble.
Set the cut/boost controls to the centre-detented position
when not required.
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