Extron electronic SF 26X Manual Do Utilizador

•

Connect the wires to the captive screw connectors of the speakers, as shown 
below. Be sure to tighten the screws. 

NOTES: 

Be sure that the combined impedance of the speaker system does not 
equal a value less than the rated minimum load impedance of the  
amplifier.

When a chain of speakers is wired in this configuration, disconnecting one 
speaker does not remove power from the remaining speaker in the chain.

 
 

Speaker 1

Speaker 2

_

_

+

+

+

_

_ +

(Black)

(Black)

(Red)

(Red)

Power Amplifier

 

 
This configuration is especially useful in installations where the system can never be 
completely down, such as in a hospital setting. 
 
The source signal can be tested by connecting to the inner + (IN) and inner – (IN) 
terminals of the captive screw connector, as shown below. 
 

Captive Screw

Connector

Test Points

+

_

_ +

Red Wire (+) from Amplifier

Black Wire (-) from Amplifier

Amplifier