Ecler essentials eHSA4-60, Руководство пользователя

Страница: 7 / 16

5.3 Input signal connections
The signal input connectors are of EUROBLOCK and electronically balanced. The pin
assignment is as follows:
•
Hot or direct signal > +
•
Cold or phase inverted signal > -
•
Ground > Ground
For unbalanced connections, ground the negative terminal on the Euroblock.
In balanced mode, the input impedance is greater than 20k
Ω
(10k
Ω
unbalanced), allowing
you to connect a large number of stages in parallel without compromising the sound quality.
The inputs can be linked using the Input link switches on the rear panel. When the switch
is active (pressed) between two input connectors, the input signal of one of the channels is
replicated on the adjacent channel, and the same input signal is available at both amplified
outputs, without the need to add external wiring or "bridging" at the inputs.
For example, if there is a connection at the Channel 1 input and the LINK 1-2 switch is
activated, the Channel 1 signal will be replicated on Channel 2. If the LINK 2-3 switch is
then pressed, the signal on channel 2 (which is identical to the signal on channel 1 in this
case), will be available on channel 3. Inputs 1, 2 and 3 will therefore share the same audio
signal.
5.4 Power saving mode
The AUTO STBY switch activates the power saving or low power consumption mode (the
PROT/STBY LED is orange when activated), this mode activates automatically when it
detects no audio signal from the unit's inputs during more than 90 seconds, and
automatically recovers its normal operation when that signal reappears.
This function is independent on each channel, so if one or more of the channels goes into
power-saving mode, the rest will continue to function normally.
The detection threshold can be selected independently per channel by means of an internal
jumper. By default, it is in the -40dB position. If it is necessary to modify this threshold, it is
possible to set it at -50dB. The lower the threshold, the more likely it is that the amplifier
channel will come out of standby mode with very low signal levels, or even with
background noise in the wiring between the sound source and the amplifier, if this is
considerable.