Bedienungsanleitung Samson D-3500 (Seite 13 von 28) (Englisch)

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Operating the D3500

Using the LEARN Mode

The following example is for reducing feedback in a typical

PA system used by a band in a small to medium size club

using the LEARN feature. You will set ten of the filters to

RESONANCE mode to remove problem frequencies that

have to do with microphone and monitor placement, as

well as room acoustics. Later on in this section, you will

find an example that explains how to set some additional

filters to DYNAMIC mode to handle feedback problems

that occur from artists moving around on stage with their

microphones. To get started with the LEARN function fol-

low these simple steps:

• Press the LINK switch so that the green LED lights,

indicating the left and right channels are linked

together.

• Press the BYPASS switch so that the LED is off, indicat-

ing the D3500’s digital effects are engaged.

•

To recall a default preset, p

• To recall a default preset, p•

ress the LOAD switch. The

LED will flash indicating the D3500 is ready to load a

preset.

• Use the Data Wheel to select Preset 00.

• Press the LOAD switch again. The LED will stop flash-

ing indicating the preset has been loaded.

• Now, select the first ten filters by pressing and hold-

ing the Channel 1 Filter Select Switch, and then press

the Channel 10 Filter Select Switch. At this point you

will notice that the green Selection LED for the filters

1 – 10 are lit. This indicates that the filters are ready to

be set-up and engaged.

• To set these filters to RESONANCE mode press the EQ

switch until MODE is displayed in the main LCD.

• Use the Data Wheel to select Mode 3; (RESONANCE).

• Next, adjust your microphones to the maximum vol-

ume, just before feedback. It's actually a good idea to

let a little bit of feedback ring out, and then turn the

level down just below the feedback.

• Now press the LEARN switch.

• Next,

turn the data wheel to select "Start : yes", press

start and watch and listen to the D3500 ring out the

monitors.

The red LED in the LEARN switch will flash indicating that

the D3500 is scanning the frequency range and adjust-

ing the filters automatically to reduce feedback, allowing

you to maximize the overall system level.

You can see the

filters being set one-by-one by looking at each Filter's

mode LED. As a filter sets itself, the ACTIVE LED will light

up. You can also watch the LED’s around the FREQUENCY,

BANDWIDTH and GAIN control knobs change as the filter

is setting. Once the D3500 completes the filter scan, the

red LEARN LED will stop flashing, letting you know that

the LEARN function is completed. In some situations, all

the filters may not set. This is okay, since the D3500 will

only use what it needs to get the job done, and is always

intelligently managing the internal DSP resources in order

to maximize system performance.

Now, you can add some DYNAMIC filter to handle the prob-

lems caused by artists moving around the stage with active

microphones. Follow the next section to set the Dynamic

filters.

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D3500_ownman_v1_2.indd 11 9/4/05 5:20:08 PM

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