USER MANUAL
iComC 2X20
Communication Amplifier
05
Operation
Functions
ON/OFF BUTTON
Switch amplifier ON or OFF
STEREO/BRIDGE MODE
There are 2 modes of operation: stereo and bridge. Only use this switch when
the amplifier is turned off
Stereo mode:
both amplifiers channels work independently.
Connected loudspeaker impedance should be at least 4 Ω.
Bridge mode:
combines both channels to drive a single loudspeaker.
Connected loudspeaker impedance should be at least 8 Ω.
INPUT SELECTOR
Select one of tree available audio inputs: Line 1(3,5 mm stereo Jack connector),
Line 2 (Stereo RCA connector), Mic (Phoenix connector). Selected input is
indicated with a corresponding LED.
LEVEL INDICATOR
Displays level of a selected parameter.
Volume level can be adjusted in 64 steps from 0 to 63.
Treble and bass levels can be adjusted in 15 steps from -7 to 7.
Balance adjusting limits from L9 to R9.
LEVEL ADjUSTMENT kNOB
Push LEVEL button to select between volume, treble, bass and balance.
To adjust selected parameter, turn LEVEL knob.
After 3 sec. of inactivity, amplifier selects volume parameter by default.
RS-232 INTERFACE
D-Sub 9-pin connector for serial interface.
DIP SWITCH
Turn ON or OFF functions: loudness, limiter, Mic input phantom power.
BALANCED MIC INPUT
Connector for dynamic or condenser microphone.
If a condenser microphone is used, switch ON phantom power (+24 V DC).
LINE INPUTS 1 & 2
Stereo line level audio inputs. Input 1 is 3.5 mm TRS, input 2 is stereo RCA.
OUTPUT CONNECTOR
Phoenix type connector for loudspeakers.
Stereo and Bridge mode wiring is marked on the amplifier panel.
POWER CONNECTOR
DC 24V 1.5A power supply input.
