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GRAPHIC
EQUALIZER
The dual nine-band (frequency) graphic equalizer section
of
your Kustom XII SRM represents
the ultimate in feedback and equalization control flexibility. Nine points (60Hz, 125Hz, 250Hz,
500Hz, 1.0KHz, 2.0KHz, 4.0KHz, 8.0KHz, and 16.0KHz) are provided
to
allow
for
adjustment in
the most critical portion
of
the audio spectrum. A maximum
of
±12.0dB
of
boost and
cut
is
provided at each
of
these frequencies. As a
point
of
interest, each
of
the
frequenci
es
represents
the center point
on
the frequency at
which
maximum control action occurs. The actual control
action at 125Hz, for example, is that the frequencies in the range
of
60Hz
to
200Hz are boosted
or
cut. This allows a smooth response
to
be
obtained over a usable portion
of
the audio spectrum.
It
is
suggested
that
when first setting up a system
for
operation that all
of
the equalizer
controls be adjusted
to
the center or flat position. This will eliminate the possibility
of
feedback,
or
if
all controls are in the
"cut"
position, the apparent loss
of
signal level. Normal operating
procedure is
to
use the individual channel tone controls
to
adjust for the desired sound, and then
use the graphic equalizer
to
compensate for
poor
room acoustics and feedback.
There
is
no simple way
to
"equalize
out"
a room. The quickest (and often the best) method
is
to
carefully listen
to
the
system and make small adjustments
to
achieve the desired sound.
It
should be remembered
that
the sound the operator hears and adjusts
for
is only in the one spot
where he is located.
At
any other point in
the
room
or
club,
the
sound will be slightlydifferent due
to room acoustics (carpeting, reflections
off
walls, and many other factors).
When
using the graphic equalizer
for
feedback control, find the feedback frequency by
adjusting each
of
the equalizer controls. Once the frequency and corresponding control
is
located, adjust the equalizer only to the
point
at
which
the feedback stops. Once this
point
is
reached,
no
further feedback control improvementwill.result, and the overall sound quality will be
degraded.
