Use Notch Filter to hone in on and cut troublesome frequencies
Check that Range Control switch is set correctly to remove
unwanted low frequency amplification
Use EQ Controls to cut frequency of feedback
Covering or blocking the sound hole(s) of an instrument may often
help give a few more dBs of level before the onset of feedback
Sound absorbent materials such as drapes and heavy banners in
the room may help to damp sound reflections which cause feedback
Where using two pickups or pickup + microphone and feedback is
encountered, increase proportion of saddle/bridge pickup or
magnetic pickup and decrease proportion of contact pickup or
microphone. Or increase proportion of contact pickup and reduce
microphone level
Microphones: Avoid omni-directional for live amplification and use
uni-directional / hypercardiod
Move source closer to microphones
Overall levels may be increased by playing harder
Use Mute switches to negate feedback while not playing/instrument
on stand
Dampen any strings which will not be in use either with techniques
while playing or when left on stand, such as by wedging in
plectrums (picks)
P. 82
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