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 at 8 ohms.
NOTES: • The bridging instructions that follow apply only to the XPA 1002 model.
• 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 amplier.
2. Fully attenuate the potentiometer.
3. Wire the output as shown in the following diagram.
4. Wire the input as shown in the following diagram.
5. Connect the IEC power cord and power up the amplier.
6. Adjust the input levels of channels 1 and 2 identically.
See
d
(Attenuation) of “Rear Panel Features and Operation” on page 12 for more
details.
100-240V x.yAMAX, 50-60Hz
XPA 1002
1
1
2
LIMITER/PROTECT
SIGNAL
2
STANDBY
CLASS 2 WIRING
1
2
G
1
2
ATTENUATION
V
10V
G
C
INPUTS
REMOTE
8Ω/4Ω OUTPUTS
50mA
0
2
4
6
8
10
12
14
0
2
4
6
8
10
12
14
1
2
1
2
1
2
Levels should be set
identically.
Input
Balanced Wiring
From
Mono
Source
From
Mono
Source
To 8 Ohm Minimum
Speaker Load
3.5 mm
Captive Screw
5 mm
Captive Screw
Un-Balanced Wiring
Amplified
Output
NOTE: During bridged mono output, the + output
from output channel 1 becomes the positive
terminal and the + output from channel 2
becomes the negative terminal
Figure 10. Bridging the Output of the XPA 1002
XTRA Series • Operation 19
