Operation Manual

10
Using the Filter Control Knobs
The D3500’s front panel features a hardware control sec-
tion with encoder knobs that allow you to make quick
real time adjustments to FREQUENCY, BANDWIDTH and
GAIN for any of the 30 filters. You can adjust any filter that
has been set by an internal preset using the Filter Control
Knobs. You can also operate a filter in MANUAL mode and
use the Filter Control Knobs to quickly set the EQ band by
hand, and by ear.
Since each of these filter parameters can be set manually
or by recalling a preset from the internal memory, the
parameters can change quickly so you’ll need to know
how the new filter parameters are set. To handle this prob-
lem, the D3500’s filter control knobs have LED light rings
around the encoders, which when lit, indicate the position
of the filter parameters. This gives you a graphical repre-
sentation of the how the equalizer band would look on a
traditional analog parametric eq.
It’s easy to assign any filter to the encoder knobs by simply
pressing any of the Filter Selection buttons. Follow the
simple steps below to set a filter to Manual and then use
the Filter Control Knobs to adjust the band.
• Press the BYPASS switch so that the LED is off, indicat-
ing the D3500’s digital effects are engaged.
• You will probably want to start with a default preset,
so press the LOAD switch. The LED will flash indicating
the D3500 is ready to load a preset.
• Use the Data Wheel to select Preset 00.
Note
:
P
reset 00 is a factory default set up that CANNOT be
overwritten.
Operating the D3500
• Press the LINK switch so that the green LED lights,
indicating the left and right channels are linked
together.
• Select the active filters by pressing the Channel 1
Filter Select Switch. At this point you will notice that
the
green Selection LEDs for filter 1 is lit on both
channels. This indicates that the filters are ready to be
set-up and engaged.
• To set these filters to MANUAL mode, press the EQ
switch until MODE is displayed in the main LCD.
• Use the Data Wheel to select Mode 1; (MANUAL).
• Now, simply move the GAIN knob and you'll see the
ACTIVE LED for the selected filters light up indicating
the filters are engaged. You will also notice that GAIN
and the associated value now appear in the LCD win-
dow.
•
Next, you can use the FREQUE
NCY knob to set the
center frequency of the filter,
which can be adjust
from 20 Hz - 20 kHz. When you adjust the knob you
will see FREQUENCY and the associated value in the
LCD window.
• Now, you can experiment by changing the filter
BAN
DWIDTH from 1/60th of an octave to 10 octaves.
When you adjust the knob you will see
BAN
DWIDTH
and the associated value in the LCD window.
Note:
You can quickly return one or more selected filters back
to a GAIN of 0 dB by pressing the RESET switch. Be sure that
the green LEDs on the Filter Select switches for the filters that
you want to return to 0 dB are lit, then press RESET.
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D3500_ownman_v1_2.indd 10 9/4/05 5:20:07 PM