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50
CONNECTIONS
CONNECTING AN A/B AMPLIFIER SWITCH FOR LOCAL SYSTEM SELECTION
A Niles SPK-1 Voltage Activated Speaker Level A/B Switcher connects to both the ZR-4630 and a local system
to provide sound from each system to the same speakers located in a single zone. The local system only con-
nects to the speakers when the local system is turned on. The Niles ZR-4630 connects to the speakers by default
when the local system is off.
In Figure 39, the Zoned Speaker Output of the ZR-4630 connects to the "A" side of the SPK-1. The Main Speaker
Output of the local system connects to the "B" side of the SPK-1. In addition, a 12V DC power adapter (Niles
FG00665) is plugged into a switched AC outlet of the local system to activate the SPK-1.
Zone 6 – Master Bedroom
Distributed Equipment Location
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AUDIO
CD
DVD
DSS
Video 1
Video 2
VIDEO
FRONT
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DIGITAL
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CENTER
REAR
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12V
D.C.
Rear
Speakers
Center
Left
Front
Right
Front
Niles SPK-1
Plugged into
Switched AC outlet
Figure 39