Quick Tech Tip
 | Sound Advice
by Leon Sievers
Sound Professional
December 13, 2007
|
– USING THE MIXER EQ
Together MID and SWEEP controls
can be used to accomplish a variety of tasks from combating feedback to
improving the way things sound through the PA or on recording. Here are
some of those tasks & settings:
· Killing feedback
set MID at -6dB and slowly rotate SWEEP until feedback stops
· Bonky sounding
snare drum -6dB @ 200Hz (and roll off LOW EQ -6dB)
· Boomy bass drum
-6dB @ 300Hz (with LOW EQ at +6dB & HIGH EQ at +3dB)
· Fwashy sounding
cymbals -9dB @ 300Hz (roll off LOW EQ -15dB)
· Hiss from guitar,
bass or keyboard amp; +3dB @ 5kHz (with HI EQ rolled off -9dB)
· Rack Toms; -3dB
@400 Hz
· Floor tom; -6dB
@ 200Hz
Note: Room acoustics play
a big part in how you will use equalization. These are approximate settings
only. Use them as a starting point and "tune around" them.
Generally speaking, you will
probably end up with the MID in cut mode for most problem solving uses
of the SWEEP control. In any case you will learn to use this feature sparingly.
The best PA EQ setting is the one with the LEAST adjustment, but when you
need to solve a problem it's good to know how to use the tools.
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