XM4180/XM4080/XH200 Owner’s Manual
7
■
Rear Panel (XM4180/XM4080)
1
XLR inputs connectors
These balanced XLR-3-31 type connectors are used to
connect input signals.
The pins are wired as shown below (IEC 60268).
* In bridged mode, only the first channel in the pair is
active; i.e., channel A of pair A/B, and channel C of
pair C/D. Make sure not to input an audio signal to
an inactive input terminal.
2
Euroblock connectors
These balanced Euroblock connectors are used to con-
nect input signals.
3
HPF switches
These switches are used to turn on and off the HPF
(High Pass Filter) for channels A-B or C-D. When this
is set to 20Hz or 55Hz, frequencies below the respective
settings are filtered using a 12 dB/octave high pass filter.
4
MODE switch
STEREO mode
In STEREO mode, channels A , B, C and D are com-
pletely independent.
PARALLEL mode
In PARALLEL mode, the channel A input signal is
sent both to the channel A power amp and the channel
B power amp. In this case, loads are automatically
connected between the A and B input terminals. (The
same applies to the C and D input terminals.)
By sending the signal from channels A/B to C/D you
can use the unit as a four-channel mono amplifier.
BRIDGED mode
In BRIDGED mode, channels A and B operate simul-
taneously, functioning as a single mono amplifier.
(The same applies to the C and D.)
Note: When in PARALLEL and BRIDGED modes,
input terminals A-B and C-D are shorted
automatically. Make sure not to input an
audio signal to an inactive input terminal.
5
MONITOR/REMOTE terminals
This terminal is used to connect the external device for
monitoring or remote control. Refer to “MONITOR/
REMOTE PIN layout” on page 14.
6
SPEAKERS terminals
These 5-way binding posts are used to connect speak-
ers.
7
GND terminal
If you are having a problem with hum or noise, use this
terminal to connect to ground (earth) or to connect to
the chassis of a mixer, preamp, or other device in your
system.
8
AC IN
Connect one plug of the included AC cable to this inlet.
Connect the other plug of the AC cable to an AC outlet
that meets the power supply conditions printed on the
label at the top of the unit.
7
5
6
6
1
8
3 2
4
1 3
2
4
* The illustration shows model XM4180.
Ground
Cold
Hot
5
