i n t r o d u c t i o n
5
2. Ensure that all the buttons on the front panel are out (not lit). Adjust the signal
level into the unit as described in the section Setting the Gain.
3. Set the other controls on the front panel to the following starting positions
(reading from left to right):
• Filters off (low filter control fully anti-clockwise, high filter control fully
clockwise).
• Gain (dB) controls in the centre (click) position for Low Eq, Low Mid Eq,
High Mid Eq, and High Eq.
• Gate threshold at maximum (fully clockwise).
• Gate release in its central position.
• Compressor threshold at maximum (fully clockwise).
• Ratio on full (fully clockwise).
• Compressor release in its central position.
• Make up control at minimum (fully anti-clockwise).
4. To hear the effect of the filters, press the Filters button (so that it lights), and
adjust the low filter control – notice how it affects the bass. Then set the low filter
off again, and adjust the high filter control to see its effect. Pressing the Filters
button in and out lets you monitor the effect of the filters. When you have finished
with the Filters, switch off the Filters button.
5. Before listening to the effect of the equaliser, turn down the Output Fader control
(since further adjustments may raise the volume, and you don’t want to damage
any other units). Press the Eq button (so that it lights), and set the Low Eq gain
(dB) control to +18 (fully clockwise). Now adjust the Low Eq Freq control, and
hear how this boosts the low end of the signal. Pressing the Eq button in and out
lets you monitor the effect. Set the gain control back to its centre (click) position,
then set the High Eq gain control to +18 and adjust its Freq control. If you find that
the unit is overloading due to increased signal level from the Eq, the level of the
Input Trim control can be reduced to lower the internal signal level of the unit.
When you have finished, return its gain control to its centre position.
6. Now do the same thing with the Low Mid Eq and High Mid Eq – with one’s gain in
the centre position, set the other’s gain to +18 and adjust its frequency control.
Again, pressing the Eq button in and out lets you monitor the effect. Notice how
these controls affect less frequencies than the Low and High Eq. Experiment with
the Fine button for each, and see how the effect becomes subtler when Fine is lit.
When you have finished, switch off the Eq button.
