18
INSTALLATION
ATTENTION
Make sure the ventilation openings at the top and bottom of the amplifier remain clear
to guarantee a continuous convection.
During installation, set the POWER switch of the amplifier to OFF (0) and set the MIC-
1, 2 & 3 controls and the AUX-1 & 2 controls to minimum (0); do not connect the power
supply yet.
INPUT
MICROPHONE:
MIC1 input is either a standard 1/4" mono jack on front panel or XLR and DIN on the
rear panel (with selectable phantom power).
XLR (balanced operation)
Pin 1 = ground (GND)
Pin 2 = signal live
Pin 3 = signal return
1/4” stereo Jack (balanced operation (backside only)*
Pin 1 = ground (GND)
Pin 2 = signal live
Pin 3 = signal return
DIN (balanced operation)
Pin 1 = Signal live
Pin 2 = ground (GND)
Pin 3 = Signaal -
Pin 4 = CHIME
Pin 5 = GND
*: the frontside 1/4” jack is a standard mono version
MIC1 input has VOX priority which will override MIC2 / MIC3 and AUX1 / AUX2 input
signals but NOT the TEL/EMER input.
MIC1-3 input are XLR, DIN and phone jack with selectable phantom power located on
the rear panel and wired as above. The phantom power is factory set to off and can be
enabled as follow:
