i) Set the Notch Frequency Selector (cut) ACW well below useful
tonal range of instrument or fully ACW
ii) Set the Notch Q-Width Control close to or fully ACW
iii) With the Notch switch selected for channel, adjust the Notch-Q
Width control from its minimum ACW setting slowly turning CW
while listening to the amplified low strings until the tone of the low
strings starts to thin out and clarify as required. Rebalance both
controls slightly in order to fine tune the maximum amount of cut
and the roll off point according to what sounds best
10.4.2 CUTTING UNWANTED MID RANGE
Set Notch Q and Notch Frequency Selector around middle of dial
and then, whilst listening to the amplified sound, adjust the Notch
Frequency Selector to find where the cut is most effective. Increase
or reduce the Notch Q Control until the problematic frequency is
minimised without taking a wider cut than is necessary. You can
switch this Out and try the same with the EQ controls for Low Mid
and High Mid, to see what works best or whether it should be a
combination
10.4.3 FEEDBACK PEAKS AND SPIKES
These are are best countered by setting the Notch Q-Width Control
fully ACW (as narrow as possible) Next, whilst listening carefully,
slowly turn the Notch Frequency Selector CW. Turn CW until
unwanted noise has been located and removed. Parametric Notch
EQ should be used carefully and sparingly. Frequencies that may
sound unpleasant when heard in isolation may need to be retained
P. 60
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