Sound Performance Lab Parametric Equalizer - Manual (Page 10)

10 OPTIMIZER
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PARAMETRIC SET-UP: To use the Optimizer as a dual-
channel, parametric equalizer proceed as follows:
• Set all filters to PARAMETRIC
• Set to DUAL mode and ensure MASTER BYPASS is out.
• Use filter ACTIVE control to set up one equalizer sec-
tion at a time.
• Select appropriate frequency range for each filter.
• Set Q initially to midway point.
SETTING UP PROCEDURE: When trying to locate the pre-
cise frequency range requiring adjustment, set the Boost/Cut
(+/-) control fully clockwise to provide maximum boost. By
sweeping through the entire frequency range, it should be
easy to locate the precise frequency range that needs cutting
or boosting. Once found, the Boost/Cut control can be
backed off to provide the desired degree of cut or boost and
the Q setting adjusted by ear. Initially, it helps to bypass the
other equalizer sections so that you can work on each equali-
zer independently.
When the equalizer sections have been set independently,
they can be switched in simultaneously and further adjust-
ments made if required. The Output control can be used to
restore any level change caused by intensive EQ cutting or
boosting.
For 4-band Mono use, set the Dual switch to out and pro-
ceed as described for stereo operation. In this mode, up to
four equalizer bands can be employed at one time. If fewer
are required, the unused bands should be individually bypas-
sed using the appropriate Active button. If only two bands
are needed, it is best to use the Optimizer in Dual mode, as
this provides the shortest signal path between input and out-
put.
Apart from the Optimizer’s more conventional applicati-
For precise location of the fre-
quency you want, set the
Boost/Cut control fully clock-
wise to provide
maximum boost.
Use the Output to compensate
for level changes.
The Optimizer is ideal for
equalizing stereo signals.
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Output filter
stages 2 and 4 Input filter
stages 1 and 3
Master out-