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Main Mix
Position the master faders in the range between –30dB and –20dB.
•
Use the channel faders to establish a basic mix, so that individual sound levels relate to each other according
to your personal taste.
•
The best range for the channel faders to be set to is in the area of –5dB to 0dB. In this way you are provided
with enough tolerance for later adjustment.
•
Use the master faders to set the overall volume of the main PA.
•
In case you want to include effects in the mix, please proceed as follows:
1.
Set the effects return fader of the FX1 unit to the –5dB mark.
2.
Use the UP/DOWN buttons to select the desired effect preset.
3.
Press the FX ON button.
4.
Play the sound source of the desired input channel and adjust the desired amount of the FX signal, using
the FX controls of the corresponding input channel. Repeat this step for all input channels that you want
to include in the effect mix.
5.
Make sure that the Peak LED only lights frequently at highly dynamic signal peaks. If it lights more often,
reduce the input level through use of the input channels' FX SEND controls and increase the FX return
level by setting the effects return fader at a higher position.
6.
If necessary, repeat steps 1 - 5 for the second internal FX unit (FX2).
Monitor Mix
For now, let's presume, that you don't use the CMS as FOH-mixer in the audience area but on-stage. The
following procedure is explained for AUX3. For setting AUX4, please perform the same steps analogous.
•
Lower the setting of the AUX3 fader located in the master section.
•
Engage the AUX3 POST button located in the master section.
•
Set the AUX3 faders of all input channels in use to their center position, so that main mix and monitor mix are
completely identical.
•
Carefully push the AUX3 fader up until a slight acoustic feedback is heard.
•
Activate the FEEDBACK FILTER and adjust its control, so that the feedback noise disappears.
•
Use the AUX3 fader to reduce the AUX3 level by about –6dB. This will provide you with enough "headroom"
before feedback during the performance, even then, when some microphone positions are changed
disadvantageously.
•
Use the FX to AUX3 controls to add the effect mix to the monitor mix, without influencing the main mix.
Normally, the monitor mix needs less FX than the main mix.
Let the artists perform some and check the sound coming from the main speaker systems from different angles and
distances. If you come to the conclusion that some corrections in the overall sound image are necessary, activate
the 7-band equalizer and match the sound to your liking. By doing so, you should keep in mind that during the
performance the sound is going to be altered because of the presence of an audience, which has a major effect
on the acoustical condition of a location, the degree of first reflections, and the absorption of low frequencies. If
possible, you should check the "sound in the house" during the performance and – if necessary – adjust it to the
changed conditions.
And for the rest, we like to wish you lots of fun and success with your new CMS mixer.
SETTING UP A STANDARD-PA SYSTEM
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