Specifications

PAGE 5AMC+ SERIES INSTALLATION AND OPERATION MANUAL
1
INPUT
These 3 pin XLR sockets accept the source input for each
channel. One input is a male XLR, the other is a female
XLR. The male XLR is normally used as a thru output. When
wiring from unbalanced sources, pins 1 and 3 should be
shorted together. The input sensitivity (voltage required to
drive amplifier to maximum power) of the amplifier is 150mV
(-14dBu) with the Input Level Control set at maximum.
2
LEVEL
This potentiometer controls the level of the signal through
the amplifier channel. Minimum position is Off and maximum
gives a sensitivity of 150mV (-14dBu). The maximum input
voltage before the input stage clips is 2.45V (+10.0dBu).
Depending on the input source, the input level control should
be run above the 12 o’clock position (half way) to avoid
clipping the input stage.
3
DIRECT OUT
Speaker connections are provided on screw terminals.
4 ohm low impedance, 70V and 100V line outputs are
provided.
DIRECT OUT CONTINUED
MINIMUM
IMPEDANCE AMC+120P AMC+250P AMC+1202P AMC+460P
Distributed Line Output
70V 41 ohm 20 ohm 41 ohm 82 ohm
100V 83 ohm 40 ohm 83 ohm 166 ohm
Low Impedance Output
(both versions)
4 ohm 4 ohm 4 ohm 4 ohm
NOTE: Only connect one output – either Distributed Line or Low Impedance per channel.
Do not connect 4 ohm and 70 V / 100 V at the same time.
The output strip comes fitted with a touch-proof cover held in place by two M3 machine screws
with flat and spring washers.
4
IEC MAINS INPUT SOCKET
This is a standard IEC 3 pin socket. It accepts a standard IEC mains cable, provided. The fuse
drawer at 5 contains the mains fuse and a spare. The mains fuse is a time lag (slow blow)
HRC 20mm x 5mm ceramic type fuse.
RATINGS AMC+120P AMC+250P AMC+1202P AMC+460P
230V operation 3.15A 4A 4A 4A
115V operation 6.3A 8A 8A 8A
Always replace the fuse with one of the same value and type.
Always disconnect power to the amplifier before replacing fuses.
5
MAINS VOLTAGE SELECTOR
The operating voltage of the amplifier is user selectable between for 115V or 230V operation
via a slide switch located above the AC mains inlet. This switch should be set to match the AC
voltage of your country.
Failure to set the Mains Voltage Selector correctly prior to use will
result in catastrophic failure.
These terminals are hazardous. External wiring to these
terminals requires installation by a professional.
AMC+460P shown here
REAR PANEL
11
2
4
5
33