Dynacord PowerMate 2200 Mode D'emploi page 37

INPUT MONO
The AUX3 POST button is engaged (LED is lit): the signal at the AUX3 rotary control is POST
FADER – the signal gets split after it passed the channel faders and therefore is affected by
their settings. Setting all AUX3 controls to their center position, the main mix is also present
on the monitor bus, giving you the opportunity to control the volume settings individually from
the stage. The overall volume of the monitor mix is set with the AUX3 fader in the master
section. If you are using this option you have to keep in mind that all volume changes made
with the channel faders also appear in the monitor mix, leaving you with a higher risk of
acoustical feedback.
To reduce the risk of feedback you still have the option to adjust the individual send levels via
the channels' AUX3 rotary controls. There is even the possibility to cancel some loud instru-
ments – like the kick drum or the snare drum, which are in fact already loud enough on-stage
– totally from the monitor mix by turning the corresponding controls all the way to the left.
10. PAN
This control determines the position of the connected sound source within the stereo image.
When this control is set at its center position, the audio signal is fed with equal levels to the
left and the right master busses. Through the extensive PAN section circuitry the essential
sound pressure level always stays the same, no matter to what position within the stereo im-
age the PAN control is set.
11. PFL
Engaging the PFL button (Pre Fader Listening) routes the audio signal of the corresponding
channel to the headphone bus. In this way you can route as many signals as you want to
the bus at the same time. The volume levels of the individual signals are not affected by the
channel fader settings – PRE FADER LISTENING. This gives you the opportunity to set the
level or the EQ of a channel without the need to include it in the main mix. The overall signal
of the headphone bus is present at the headphone output.
12. SIGNAL (present) / PEAK indicator
This indicator plays a key role during the level adjustment of the input channels, offering opti-
cal information of the actual signal level. It provides the possibility to detect the risk of occur-
ring overdrive before you would actually hear the distortion. Unlike the mixers of many other
manufacturers that either only provide a PEAK indicator or no channel indicator at all.
As described before, the signal "present" LED should blink in the rhythm of the incoming
signal. If this is not the case, you have to increase the gain. If the PEAK LED, on the other
hand, blinks frequently or lights up constantly, the corresponding channel is likely to enter
clipping and you have to turn the gain control a bit to the left. The signal "present" LED lights
at levels –30dB below clipping while the peak LED lights at a level of –6dB below the occur-
rence of overdrive.
It is also a good idea to watch the indicator during a performance. There is rumor that during
a performance some musicians get carried away by the music and the atmosphere. They
tend to play their instruments more dynamic than during the rehearsal. This, of course, can
easily lead to channel clipping, resulting in the degradation of the overall sound.
13. VOLUME
The channel faders are used to set the volume of the corresponding channels and to es-
tablish an accurately proportioned mix. The channel faders should be positioned within the
range of –5dB to 0dB, leaving you with a degree of control that allows the precise matching
of relative big differences in the channels' level settings. The overall volume is set through
the use of the master faders.
Even though the channel faders offer an additional gain of +10dB, we would like to advise
you not to exceed the +5dB mark. If the PowerMate's main bus gets "overloaded" with too
many "high level" input channels, despite its special negative gain structure, the summing
amplifi er could be driven into clipping. Once you register, that some channel faders are set
above the 0dB marking, we would recommend you lower the setting of each channel fader
by about –5dB and increase the overall output level by elevating the master faders. The pro-
portion of the mix and the overall volume stay the same while the risk of clipping is
prohibited.
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