Operation And Use; Start Up; Monitoring - Ecler MAC90v Manual De Instrucciones

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-LINE Inputs. Given the important level differences between usual LINE and CD
sources (e.g. Tape decks), the MAC90v provides specialized inputs for each source. The
sensitivity of the HIGH LINE input (45) is 0dBV (1V), while the LOW LINE (44) sensitivity is
-10dBV (316mV).
Compact disc, DAT, MP3, DVD Audio... should be connected to the HIGH LINE input.
Tape recorders, cassettes, tuners, videos... should be connected to the LOW LINE input.
- Headphones: In order to achieve the best performance, they should be high
impedance type (200-600:). They must be connected to the HEADPHONES OUT (34)
connector, a standard ¼" stereo jack. Connect ground to sleeve, ring to right and tip to left.
- Other mixers: The MIX (49) input provides a direct access to the main mix bus, so
this is a perfect input for another mixer to be plugged in without using up a regular input.
- Power amplifiers: See paragraph 4.9.

4. OPERATION AND USE

4.1. Start up

Power up the mixer by pushing the POWER (16) switch. The green pilot-light,
integrated into the switch itself, will immediately light up. Although the noise generated by
powering up the MAC90v is reduced to a bare minimum and is nearly null with the MASTER
(26, 33) faders down, it is always advisable not to forget about this power-up sequence: sound
sources, mixer, equalizers, active filters and power amplifiers. Power down the equipment by
following the inverse sequence. This way the peaks or transients produced by powering
up / down a device do not affect the following one in the audio chain and, as a result, they do
not reach the loudspeakers, which are the most vulnerable audio elements in this case.

4.2. Monitoring

The MAC90v is equipped with an acoustical and visual monitoring system, through
headphones, CUE output and VU METER. When switching ON any of the PFL buttons, signal(s)
present at the input(s) will be seen at the VU METER. If no switch is at the ON position, the
signal present at the main mix bus is heard (open faders). By pushing the OUT1/OUT2/AUX
buttons, the right VU-Meter displays the signal present at the output 1 or output 2. If no switch
is at the ON position, the signal present at the main mix bus is shown (open faders).
It is also possible to monitor through the CUE (55) output. This output carries the very
same signal as the headphones output does. Its nominal output level is 0dBV (1V) and it is
controlled by the rotary knob CUE VOL (36).
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