Bedienungsanleitung Samson D-2500 (Seite 14 von 32) (Englisch)

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Using the Process Switches

In addition to being a great sounding, clinically precise,

digital equalizer, the D2500 provides a host of useful digi-

tal effects, which have been designed to make an audio

engineer’s job easier and project sound better. Don't look

for reverbs and chorus effects here, just solid digital effects

processors designed for loudspeaker management. The

EQ switch gives you access of the digital filters in the LCD

screen so you can view an accurate measurement of any of

the 31 EQ bands, as well as the Master Fader. The D2500's

FEEDBACK Management processor provides an automatic

feedback management system to clean up live PA and

monitor systems. The GATE effect allows you to eliminate

annoying buzzes and hums. The DELAY effect is perfect

for phase aligning speakers systems using multi-transduc-

ers and for delaying speaker arrays in large venue instal-

lations. The D2500’s unique ENHANCER effect will help

reduce the over all system noise, while at the same time,

sweeten-up the high end of any speaker. To set the over-

all low or high-end frequency contour, the D2500 features

multi-pole Hi-pass and Low-pass filters. Speaker protec-

tion is handled with the D2500’s digital brick wall LIMITER.

The Navigation buttons located in the center of the unit

under the faders, along with the Data Wheel, control the

various parameters used to set-up these powerful ef-

fects. Remember, some of the effects may have several

pages, which are accessed by pressing through the effects

switches

You should know this!

The D2500 processing effects can be individually selected

on or off, using the IN / OUT switch located at the end of

the row of process switches. Also, remember to make sure

the LINK switch is lit, if you want to make changes to the

processing effects on the left and right channel simultane-

ously.

Using the EQ section

When the EQ switch is selected, the D2500's various

parameters for the 31 equalizer filters, as well as the

Master Fader filters are displayed in the LCD window . You

can use the Data Wheel to scroll through the frequencies

and display the filter levels in the main LCD window. It

is easy to see which fader is assigned to the display by

watching the LED in the fader caps of each filter band.

The D2500 uses an inverse highlight to display the active

filter band. When the LED is off, the fader is selected. If you

move a physical fader you will see the fader cap LED go off

indicating that the information for that fader is now being

displayed in

Operating the D2500

the LCD. For more information on the physical faders and

how they work with presets, see the previous section,

"Working with the D2500's Faders" .

To use the EQ section follow these steps:

• Press the EQ switch until the yellow LED is lit.

• Now while the EQ switch is lit, engage the equalizer by

pressing the IN / OUT switch until the yellow LED lights.

• To monitor the current EQ points, use the Data Wheel to

scroll through the EQ filters.

• In order to change any EQ filter, simply grab the fader

and move it up to boost the frequency or down to cut

the frequency.

Using the FEEDBACK Management Function

The D2500 has an intelligent automated system to help

reduce the chance of feedback in any live sound situation.

You can use the Feedback Management System to auto-

matically scan the sound system, identify the frequency

bands that are feeding back, and then, attenuate those

bands. You can also use the Feedback Management System

in MANUAL mode in which the D2500 will scan the system

for feedback, and then display the frequency bands that

are feeding back by lighting the red LED over the fader.

Once you see the fader feeding back you can simply lower

the fader band yourself using the hardware fader.

The FBM Switch Has Five Clicks!

Click Menu Function Value

FBM Mode Off,

On,

Auto

2 Sensitivity

Sensitivity

0 - 10

3 FB Max Maximum Cut - 0.5 dB - -12dB

4 FB Hold Filter Hold Time 5 - 300 milisec.

5 FB Rel Filter Release Time 20 - 300 milisec.

You can operate the Feedback Management System by fol-

lowing these simple steps.

• Press the FEEDBACK switch until you see the screen FBM:

OFF.

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