Behringer Autocom Pro-XL MDX1600 Manual Do Proprietário

MULTICOM PRO-XL MDX4600/COMPOSER PRO-XL MDX2600/AUTOCOM PRO-XL MDX1600 User Manual

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DE-ESSER LEVEL (MDX2600). The LED chain reads the current attenuation 

within a range from +3 to +12 dB.

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MALE switch. This switch adapts the de-esser to the male (switch pressed) 

or female registers (not pressed).

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IN/OUT switch. Switches the de-esser on and off.

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Fig. 2.6: Peak limiter section control elements

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The peak limiter limits the signal to an adjustable level. When the LIMITER 

control is turned fully to the right, the limiter is switched off. Owing to 

its extremely fast “zero” attack, this circuit is capable of limiting signal 

peaks without any overshoot. If the signal is limited for more than 20 ms, 

the overall gain is reduced for about 1 s to avoid strong and thus audible 

limiter effects.

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The LIMIT LED lights up as soon as the limiter is on.

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Fig. 2.7: Power supply and fuse

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FUSE HOLDER/VOLTAGE SELECTOR. Before connecting the unit to the 

mains, ensure that the voltage setting matches your local voltage. A blown 

fuse should only be replaced by a fuse of the same type and rating. 

Please refer to chapter 6 “Specifications” for details.
MAINS CONNECTION. Use the power cord supplied with the unit to connect 

it to the mains. Please note the instruc-tions given in chapter 5 “Installation”.

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OUTPUTS. These are the audio outputs of your dynamics processor. The two 

matching 1/4" TRS and XLR connectors are wired in parallel and balanced. 

Of course, unbalanced cables can be connected here as well.

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OPERATING LEVEL switch. This switch can be used to adapt the COMPOSER 

PRO-XL, AUTOCOM PRO-XL or MULTICOM PRO-XL to various operating levels, 

i.e. to toggle between home recording level (-10 dBV) and studio level 

(+4 dBu). The level meters will be referenced automatically to the nominal 

level adjusted, so that the compressor works in its optimum operating range.

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Fig. 2.8: Rear panel connectors and switches

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INPUTS. These are the audio inputs. They are also on balanced 1/4" TRS and 

XLR connectors.

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Fig. 2.9: SIDECHAIN connectors

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SIDECHAIN SEND. This is the unbalanced sidechain output, which allows 

you to route the audio signal to other devices for external processing.

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SIDECHAIN RETURN. The sidechain input allows you to use an external 

signal or the processed (e.g. with an equalizer) audio signal routed from the 

SIDECHAIN SEND jack to control your COMPOSER PRO-XL or AUTOCOM PRO-XL.

A very common type of application is to make the compressor threshold 

frequency-dependent by inserting a graphic or parametric equalizer into the 

side-chain path. To be able to keep the threshold setting on the MDX1600 or 

MDX2600, unwanted frequencies should be cut with an inserted equalizer, 

without affecting the levels of selected frequencies. For example, to control the 

compressor from a narrow-band midrange frequency band, we recommend 

reducing the bass and treble controls on the inserted EQ, while leaving the 

midrange control set to 0 dB.

Insert an equalizer into the sidechain control path in the following order: 

SIDECHAIN SEND - equalizer - SIDECHAIN RETURN. Turn the THRESHOLD control 

to the left until the GAIN REDUCTION meter reads a clearly noticeable gain 

reduction. Now the equalizer must be set so that all frequencies are reduced in 

level, except for the interference frequencies. Thus, the interference signal will 

trigger the compression.
Using this technique you can, for example, reduce the dynamics of a bass 

drum that is too loud in an existing recording. Simply use an equalizer to cut 

all frequencies above 150 Hz, so that the compression will be triggered by the 

individual beats of the bass drum.