Extron electronic SF 26X manual Wiring Multiple Speakers Using Loop-through, Signal Test Points

•Wiring Multiple Speakers Using Loop-through:

A loop-through electrical connection is made on the crossover board of the

SF 26X. 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 removes power from the remaining speaker in the chain.

	(Red)
	(Black)
Power Ampli￿er	_
	_

(Red)

(Black)

_ _

Speaker 1 Speaker 2

This configuration is useful for troubleshooting in four ways:

•The system is sectioned for easier troubleshooting.

•The source signal can be tested by connecting to the inner + (IN) and inner

– (IN) terminals of the captive screw connector, as shown below.

Red Wire (+) from Amplifier

Amplifier

Black Wire (-) from Amplifier

Test Points

_ _

Captive Screw

Connector

Signal Test Points

SF 26X User Guide • Installation 5