Specifications

PAGE 5AMC
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SERIES INSTALLATION AND OPERATION MANUAL
REAR PANEL
13
2
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 (see Installation section). The input sensitivity
(voltage required to drive amplifi er to maximum power) of the
amplifi er is 150mV (-14dBu) with the Input Level Control set
at maximum.
2
Level
This pot controls the level of the signal through the amplifi er
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
The speaker connections are on the 12 pole terminal strip.
There is a low impedance output (OHM) and a distributed line
voltage output (LINE). 70V out is available on 115V models.
100V out is available on 230V models.
There are 6 unused terminals. These do not connect to
anything.
4
Note: Only connect one output – either Distributed Line or Low Impedance per channel.
Do not connect LowZ and 70/100V at the same time.
The output strip comes fi tted with a touch-proof cover held in place by two M3 machine screws
with fl at 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
draw 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.
Always replace the fuse with one of the same value and type.
Note: Always disconnect power to the amplifi er before replacing fuses.
3
Direct Out continued
Minimum Impedance AMC
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120P AMC
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250P
Distributed Line Output
70V (115V version) 41ohm 20ohm
100V (230V version) 83ohm 40ohm
Low Impedance Output
(both versions) 4ohm 4ohm
The ratings are: AMC
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120P AMC
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250P
230V model 2A 2.15A
115V model 4A 6.3A