Extron Electronics CS 120P User Guide - Manual (Page 28)

• Wiring Multiple Speakers Using Loop-through:
A loop-through electrical connection is made on the crossover board of the CS 26T.
Connect the wires to the captive screw connectors of the speakers, as shown in
figure 36. Be sure to tighten the screws.
Speaker 1 Speaker 2
Wiring Multiple Speakers Using Loop-through
IN
–
LOOP
–
IN
+
LOOP
+
IN
–
LOOP
–
IN
+
LOOP
+
(Black)
(Red) (Red) (Red)
(Black) (Black)
Power Amplifier
Figure 36. Wiring Multiple Speakers Using Loop-through
In this configuration, all of the speakers downstream of the one being tested are
disconnected from the signal when it is disconnected. This is useful for
troubleshooting in three ways:
• The system is sectioned for easier troubleshooting.
• The source signal can be tested by connecting to the inner + (IN) and – (IN)
terminals of the captive screw connector, as shown in figure 37.
Signal Test Points
Red Wire (+) from Amplifier
Black Wire (-) from Amplifier
Amplifier
Test Points
Figure 37. Signal Test Points — Loop-through Configuration
CS 26T and CS 120P User Guide • Installation 22