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VC3Q
- User's guide
Pro Channel
to be remembered. The rule is that when 'lift' is used, it's often necessary to
compensate by reducing the input gain.
Note, always start with the EQ controls set to the 'flat' position; that is, with
the three pointers set at the '0' position at the top of each control.
A red LED indicator show overload conditions at the output of the equalizer
section of the VC3Q. When this indicator flashes, it shows that the audio
signal is within 6dB of the overload point. This a very useful indicator as it
allows you to operate the EQ knowing that there will not be distortion in the
output.
If the overload light flashes more than 'occasionally', then decrease the
input gain control.
PROCHANNEL CONTROL EXPLANATIONS.
'INPUT GAIN' changes the audio amplification of the input amplifiers of the
ProChannel. Too little gain and the sound will be too quiet and electronic
background noise from various sources could become a problem; too much
and the ProChannel could become overloaded and distorted.
'
COMPRESSION' simply adds gain to the compression sidechain and so
increases compression. In simple terms this changes the 'threshold' of the
compression although with this compressor the 'threshold' is not clearly
defined; the compression starts very gradually and the compression ratio
changes with programme content and volume.
For practical purposes, winding up the compression control increases the
amount of compression. In use you will find that musically, all controls are
interrelated.
'ATTACK' sets the time that the compressor takes to act. At maximum
(slowest) it's possible to make the compressor 'overshoot' on some
percussive programme material: This means that the compression
electronics are driven hard before the gain has been controlled by the light
cells. The cells catch up and over-compress momentarily giving a tiny dip
immediately following the start of the 'note'. This is best demonstrated when
recording drums. Used sparingly this can contribute to musical drive.
Faster attack times (set to minimum) are used where the compression
needs to be less obvious, and more reliably gain controlling.
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