Ecler eHSA2-250, User Manual

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Each input connector (INPUT CH1, INPUT CH2, etc., depending on the model) has an
adjacent STACK link connector (same signal available in INPUT), enabled to connect
the same input signal to several inputs or devices.
5.4 High-pass filter
Each input channel has a switch which activates (ON) or deactivates (OFF) its high
pass filter: 3
rd
order Butterworth with cut-off frequency at 75 Hz.
5.5 Output connections
The 100V OUTPUTS section on the rear panel features Euroblock
connectors
.
The loudspeakers line has to be connected to the amplifier’s + and - terminals from
each output channel.
The connection cable that joins the amplifiers outputs and the loudspeakers must be
of good quality, sufficient section and as short as possible. This is most important
when the distances to cover are long ones.
6. OPERATION AND USAGE
6.1 Start up
The red "PROT" LEDs light up when you turn on the POWER switch. A moment later
all voltages have been stabilized and the amplifier is operating, "PROT" indicators
turn off.
In a complete audio installation, it is important to power on the equipment
according to the following sequence: sound sources (microphones, music players,
etc.), mixers, equalizers, active filters and power amplifiers. To power off, follow the
reverse sequence.
6.2 Input attenuators
These consists of rotating potentiometers (VOL), situated on the rear panel, one for
each channel.
These attenuators allow connecting the amplifier to different types of mixers and
processors, independent level control and connection of speakers that can't handle
the wattage supplied by the output stage at full power, without risking damage if the
volume of the preamplifier-mixer is set too high.