Bridged Mono Output

The power output of the XPA 1002 and XPA 1002 Plus 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 series.

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.

NOTE: See D (Attenuation) of Rear Panel Features and Operation on page 12 for more details.

100-240V 0.5A, 50-60Hz

XPA 1002

 

 

ATTENUATION

INPUTS

1

2

1

 

 

2

 

1

2

 

 

12 10

8

 

12 10

8

 

 

LIMITER/PROTECT

 

14

 

6 14

 

6

 

 

18

 

4

 

 

4

 

SIGNAL

 

26

 

2

 

 

2

 

 

0

 

0

 

 

 

 

 

 

 

REMOTE

10V

50mA

 

G STANDBY

8Ω / 4Ω OUTPUTS

1 2

Levels should be set identically.

3.5mm

Captive Screw

Balanced Wiring

1

 

From

2

Mono

 

Source

 

Un-Balanced Wiring

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 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 Series

XTRA Series Half-Rack Audio Power Amplifiers • Operation

19

Page 25
Image 25
Extron electronic XTRA SERIES manual Bridged Mono Output, Bridging the Output of the XPA 1002 Series

XTRA SERIES specifications

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