Operation And Usage - Ecler NUO2.0 Manual De Instrucciones

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5. OPERATION AND USAGE

Start-up
This can be done using the switch (40) located at the mixer's back panel. Now the LED ON (15) indicator will
highlight. Even if the noise produced while enabling the NUO2.0 is as low as possible and gets completely
cancelled if all faders are turned down, it is always recommendable to turn on the devices using the following
sequence:
1. Sound sources.
2. Mixer, equalizers, active filters.
3. Finally, power amplifiers.
Powering off should be done by following the exact reverse sequence in order to avoid any possible damage to the
loudspeakers.
Control Description
Input selector
Each channel features an input toggle switch selector (1).
Channel GAIN
All the NUO2.0 input channels have an accessible input sensitivity GAIN control (2). The GAIN controls adjust the
input level of each channel in order to compensate the different sources connected to the mixer.
The gain adjustments should be done with great care, using as a reference the PFL VU-meter (14). The standard
level reference used to mix audio signals is 0dBV.
Equalization
The rotary tone controls for each channels provide a +10/-30dB boost/cut at high (3) and low frequencies (5) and
+10/-25dB at the mid range (4). This great attenuation range is specially designed for creative live performance.
Also, any of the three frequency bands can be "killed on the fly" activating the ISOLATOR switches (6, 7, 8) located
below the LOW rotary knob on channels 1 & 2.
ATTENTION: Use equalization carefully, by boosting too much the low frequency range, you can induce an
excessive displacement of the speakers membrane.
Monitoring System
The NUO2.0 is equipped with a flexible and easy monitoring system that will allow the performers to finely tune PFL
(Pre-fader listening) and Mix levels of each input through the VU-METER and the HEADPHONES. Each channel
can be monitorized visually and pre-listened pressing the dedicated PFL (9) button.
For HEADPHONES monitoring, the SELECT rotary potentiometer (25) allows you to blend a selected PFL together
with the main MIX Program. The LEVEL rotary potentiometer (24) controls the level of headphones output.
9

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