The general rule about using EQ is to be very careful about too much 'lift'.
Increasing the gain by say 10dB in the high frequencies has the effect of
taking the MQ3 closer to overload. This is generally OK as the MQ3 is
designed with very generous overload margins, but when using EQ this has
to be remembered. The rule is that when 'lift' is used, it's often necessary to
compensate by reducing the input gain.
Note, always alter sound from the ground up; i.e. with the EQ controls set to
the 'flat' or 0 position.
A red LED indicator shows overload conditions at the output of the equalizer
section of the MQ3. 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. - See block diagram for detail on overload indicators.
7
MQ3 CONTROL EXPLANATIONS.
'INPUT GAIN' changes the audio amplification of the input amplifiers of the
MQ3. 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 MQ3 could become overloaded and distorted.
‘MIC’ when pressed in enables the microphone input on the rear panel.
When out, the unit will respond to the line input
‘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
MicroMeek MQ3
- User's guide
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