Ecler essentials eSAM402, Руководство пользователя

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STARTING UP
This is directly done via the POWER mains switch. Even is the power-up noise of
eSAM402 is minimal, we highly recommend to power up all equipment in the following
order: sound sources, mixing units, equalizer, processors and finally power amplifiers.
The power down sequence is the inverse of the power up one.
EQUALIZATION
The tone controls of the main output provide a ± 15dB gain/attenuation for each of the
bands, and their central operating frequencies are 100Hz, 2kHz and 10kHz. Given the
philosophy of this unit, the tone controls are designed to be adjusted with a screwdriver,
thereby preventing accidental manipulation during normal use.
VU-METER
The eSAM402 has a VU-meter to show the main mixing signal.
GROUND LOOPS, BACKGROUND NOISE
You should always make sure that the signal sources coming to the unit, as well as all
devices connected to its outputs, do not have their grounds interconnected, that is;
ground must never come from two different devices. Should this ever happen, noises
could occur and seriously interfere the sound quality.
Cable shields, when connected to the chassis, must never be linked together. This will
avoid ground loops.
The eSAM402 mixer was designed to produce the lowest background noise.
Independently from the electronic design, the resulting background noise directly relies
on the correct use and installation of the mixing unit.
Adjust, where appropriate, the gain of each input for an adequate operating level and
then adjust the VOL controls on the front panel to obtain the desired input mix.
Finally, adjust the VOL control of the main mix output to get the relevant output volume
for your installation, and also enable the TK switches for priority inputs (a signal detection
on these priority inputs will attenuate the signal of non-priority inputs).
Important
note on mix level adjustment: setting for example a channel VOL control to
"2" and the output VOL control to "10" is not the same as the opposite. In the first case,