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 amplifier.
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 amplifier.
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.
XPA 1002 |
ATTENUATION
1 | 2 | 1 |
|
| 2 |
|
LIMITER/PROTECT |
| 12 10 | 8 | 14 | 12 10 | 8 |
| 14 | 6 |
| 6 | ||
SIGNAL |
|
| 4 |
|
| 4 |
|
| 2 |
|
| 2 | |
|
|
| 0 |
|
| 0 |
INPUTS
1 2
| REMOTE |
| G STANDBY |
10V | 50mA |
V | C G |
8Ω/4Ω OUTPUTS
12
CLASS 2 WIRING
Levels should be set identically.
3.5mm
Captive Screw
Balanced Wiring | 1 | |
| ||
From | 2 | |
Mono | ||
| ||
Source |
| |
1 | ||
| ||
From | 2 | |
Mono |
| |
Source |
|
5mm
Captive Screw
InputAmplified Output
To 8 Ohm Minimum Speaker Load 
1 |
|
2 | 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 |