Connections; Operation And Use; Start Up; Indicators And Adjustments - Ecler EPC200s Manual De Instrucciones

3.1. Connections

All the input and output signals of the processor are balanced with XLR 3 connectors and
the pin assignment is as follows:

4. OPERATION AND USE

4.1. Start up

To start the EPC200s push the switch labelled POWER (6) and the green pilot-light inside
the switch will shine. Although the noise produced when starting up the EPC200s is minimum, we
highly recommend to start the audio chain following the sequence: sound sources, mixer,
equalizers, EPC200s and power amplifiers. Stop the chain inversely, in order to avoid possible
damage to the loudspeakers.

4.2. Indicators and adjustments

SIGNAL PRESENT INDICATOR (1-2). Two green LEDs on the front panel show the
presence of a signal at the inputs of the EPC200s.
OVERLOAD INDICATOR (3-4-5). Three LEDs show the saturation of any output (L-bass,
M-mid, H-treble). The indicators are common to both input channels (L&R). The LEDs will shine
whenever an excessive signal level is sent to the amplifier inputs.
PHASE ADJUSTMENT 0-180º (10-17). The phase adjustment switches are on the back
panel and enable the phase selection of the bass and treble loudspeakers in relation to the mid
ones, wich are taken as the reference. In addition, the bass way can be continously adjusted from
0º to 180º by means of a potentiometer (12) thus yielding to a complete 360º turn if both are
used. This special capability is specially useful at frequencies near the cut-off bass band (around
150Hz) where near frequencies can be enhanced or attenuated. It can also extend the response for
very low frequencies.
The start position is with both adjustments at 0º. Select a musical piece with plentiful
bass, place yourself at a distance greater than 10m from the cabinet and make a fast test by
means of the switch. Never make the adjustment at the side or behind the cabinet! Once you have
selected the most favourable position of the switch from the point of view of "cleanliness" and
bass level, adjust the potentiometer. Repeat the process various times.
Notice that the adjustment will only be valid under for the test conditions; any change of
the structure, disposition of the elements, etc, will imply a new adjustment. Similar considerations
can be said for the treble phase switch (17). The main effect achieved is the compensation of the
non-alignment on the same plane of the mid and treble engines. The start position is with the
switch at 180º. If a disco sound or a lower voice enhancement are desired, place the switch at 0º.
BASS BOOST (13). This switch emphasizes by 3dB the bass output. The normal position
for the 90% of the situations is off (unpushed). Only if the bass cabinet is not stacked to the
mid / high cabinet is placed far from walls (eg. hanged) is recommendable the use of this switch.
HOT or direct signal
COLD or inverted signal
GROUND
> Pin 2
> Pin 3
> Pin 1
5