English Installation and Operation Page 29
pro.Bose.com Setup and Operation
Expanding an IZA system with a ZA amplifier
The Bose
®
FreeSpace
®
ZA 190-HZ/250-LZ zone amplifier makes system expansion easy. When a system design requires
more loudspeakers than the FreeSpace IZA 190-HZ/250-LZ integrated zone amplifier can support, the FreeSpace ZA
190-HZ/250-LZ zone amplifier is available to provide additional output channels.
System operation
The IZA 190-HZ/250-LZ and ZA 190-HZ/250-LZ amplifiers will function together as one system – sharing the same music
and paging sources. The IZA 190-HZ/250-LZ amplifier functions as the “master” of the ZA 190-HZ/250-LZ amplifier –
determining which audio sources will be heard and controlling the overall Master Level volume.
Input connections
Connecting the IZA 190-HZ/250-LZ amplifier to the ZA 190-HZ/250-LZ amplifier
Connect the AUX OUT of the IZA 190-HZ/250-LZ amplifier to the INPUT of the ZA 190-HZ/250-LZ amplifier with the
included RCA cable.
Note: It is recommended that when amplifiers are connected together, that both amplifier AC power cords are plugged
into the same AC outlet.
Connecting the zone amplifier with other products
The zone amplifier can also be used as a standalone power amplifier with a front-end signal processor – including the
Bose FreeSpace
®
4400 Business Music System and ControlSpace
®
Engineered Sound Processor.
Line input connections
When using a front-end signal processor, the included RCA cable may need to be modified. The wiring diagram for the
zone amplifier line input RCA connectors is provided below.
Tip
Sleeve
Loudspeaker connections
Refer to Section “Loudspeaker connections” on page 21 for instructions.
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General
Weight and Dimensions
