User`s manual

XTRA Series • Operation
3-11
Remote volume control
Options for remote control of the XPA ampliers include the
Extron VCM 100 and VC 50 volume controllers. Third party 10k
potentiometer volume controllers can also be connected to this
port.
As shown in the following illustration, the XPA's pin 1 is 10
VDC reference voltage. Pin 2 is volume control DC voltage,
range is 0 to 10 V, where 0 V is mute and 10 V provides
maximum volume. Pin 3 is ground.
N
All nominal levels are at ±10%.
VOL/ MUTE
10V
REMOTE
Red
Black
Ground
Extron
STP 22
Cable
VOLUME
VCM 100
MUTE
123 45
STANDBY
VOL/MUTE
10V 50 mA
Pinout diagram for VCM 100 MAAP connection to
XPA's remote connector
Bridged mono output
The power output of the XPA 1002 can be effectively doubled
by bridging the output. Bridging allows power to be output in
mono at 200 watts @ 8 ohms or 120 watts @ 16 ohms.
N
The bridging instructions that follow apply only to the
XPA 1002 model.
N
The minimum load impedance when bridging is 8 ohms.
To bridge the output, follow the steps and refer to the diagram
below:
1. Unplug the IEC power cord from the power amplier.
2. Wire the output as shown in the following diagram.