AMC 2A Series User Manual - Page 6
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Rear Panel
1. INPUT CONNECTORS
Connect your input signal to these balanced
phoenix or XLR connectors. Link connector
allows to have direct output from input
connector.
2. GND SWITCH
To eliminate a ground loop, set ground switch
to lift position and otherwise to connect a
ground to amplifiers chassis.
3. SENSITIVITY
There are 3 level of input sensitivity 0.7V, 1V
and 1,4V.
4. COMPRESOR
Set switch in to normal for disabling
compressor. The compressor is active then 1V
sensitivity is selected and switch is set to
compressor.
5. MODE SWITCH
There are available 3 modes of operation:
stereo, bridge and parallel. Don't use this
switch then amplifier is turning on.
Stereo mode: This is general used mode. In this
mode both inputs require audio signal and
both volume controls are active. In stereo
mode Channel 1 and Channel 2 work
independently. The minimum loudspeakers
impedance should be no less then 2Ω.
Bridge mode: This mode combines the power
from both channels to drive a single
loudspeaker. In this mode only input1 require
audio signal but both volume controls are
active.
The
minimum
impedance should be no less then 4Ω. Please
note that prolonged outputs overdriven can
be reason of main fuse blowing.
Parallel mode: This mode allow both channels
to operate in parallel with same signal. In this
mode the inputs for both channels are
internally connected, so only input1 require
audio signal but both volume controls are
active. Do not use parallel mode then feeding
the amplifier with two separate signals. Please
note that only amplifier inputs are connected
in parallel. Do not connect positive and
negative output connectors in parallel! This is
not a output parallel mode.
6. OUTPUT CONNECTORS
4
pole
Speakon
connectors.
7. MAIN FUSE
For continued protection against risk of fire,
replays only same type fuse. If fuse
continuously blowing, contact with qualified
service personnel.
8. MAIN POWER
Main power socket. ~220V 50Hz.
9. VENTILATION HOLES
The fan speed is varied automatically to
maintain the proper internal operating
temperature. Direction of cooling air flow:
from the rear to the front.
loudspeakers
and
blinding
post