Sound performance for 2 or 3 sound engineers, PA and several microphones
equalize is dedicated to all sound engineers.
SETTING
Several (different) microphones are placed on a stage. The signals from all microphones are routed to the control desk, where the three sound engineers each operate a digital EQ and a group fader. The output signal is routed to the PA. The PA should be at least stereo, but it can also consist of several discrete loudspeakers on stage.
During the performance, the engineers remain in the control desk and do not enter the stage.
INSTRUCTIONS (1st option)
The frequency spectrum is divided between the three (or two) sound engineers, each of whom takes over one section (e.g. 20Hz to 600Hz, 600Hz to 1.2kHz and 1.2 to 20kHz). The microphone signals are split using a crossover and routed into three (or two) groups. The microphone preamplifiers should be as open as possible, with the group faders completely closed at the start.
Now each of the sound engineers carefully begins to raise the group faders. As soon as feedback occurs, it must be eliminated as narrowband as possible. This process is continued until all three group faders are at maximum and the EQs have lowered the entire spectrum to such an extent that no more feedback occurs.
INSTRUCTIONS (2nd option)
Each sound engineer takes charge of some of the microphones. The microphone preamplifiers should be as open as possible, with the group faders completely closed at the start. Now each of the sound engineers begins to raise the group fader very carefully. As soon as feedback occurs, it must be eliminated as narrowly as possible. This process is continued until all three group faders are at maximum and the EQs have lowered the entire spectrum to such an extent that no more feedback occurs.