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Description
32
The rotary controls can be used to adjust the parameters of the selected audio function.
Each input channel has a green LED "ON" and a red LED "PEAK". "ON" lights up when the
input channel is connected. If the Automix function (see "Automatic mixing functions" Page
36) is switched off, "ON" lights continuously. "PEAK" lights up when the signal on an input
channel is close to the maximum control limit. In this case, the level should be turned down or
the input sensitivity should be changed.
The input sensitivity is adjusted using the DIP switches (see "Input channels" Page 33) on the
rear panel of the connected unit.
NOTE
MUTE function:
Briefly pressing a rotary control causes the corresponding channel to be muted. The MUTE
function is indicated by the steady flashing of the LED ring. Another brief press of the rotary
control removes the MUTE function.
VU function:
NOTE
The "SYSTEM CONTROL" rotary control can be used to display the current audio level of the
inputs and outputs, see Operating DMM 4/2/4.
MIC/LINE inputs
The DMM 4/2/4 has four balanced input channels for connecting low-impedance dynamic or
condenser microphones and other audio sources, e.g. receivers for wireless microphones. A
rotary control is available for each input channel. These are labelled "IN 1 - MIC/LINE" to "IN 4
- MIC/LINE".
AUX inputs
The DMM 4/2/4 has two AUX inputs for connecting external audio sources, e.g. a CD player. A
rotary control is available for each input channel. These are labelled "IN 5 - AUX" and "IN 6 -
AUX".
Operating mode
The DMM 4/2/4 has a large number of functions (see "DSP functions" Page 41), such as
volume, treble ranges, bass, auto-mix functions, etc. The "LOCKED" function can be used to
lock the entire unit. These functions can be selected using the "SYSTEM CONTROL" rotary
control.
Output
The rotary knob for the stereo output channels is labelled "OUT MASTER". This rotary knob
adjusts volume, treble and bass range, limiting behaviour, attenuation and balance in the
output channel.
LEDs for stereo output
The sets of LEDs under the rotary knob for the stereo output channels indicate the decibel
level.
Headphone output
The rotary knob for the headphones is labelled "HEADPHONE". This output is always in LEVEL
mode for volume control. Press this knob briefly to mute the headphone output. Press it briefly
again to cancel the MUTE function.
DMM 4/2/4 Stereo
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