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Application 6: Restaurant, IZA expansion with ZA
For a moderately-sized restaurant, either IZA integrated zone amplifier can pair with either ZA
zone amplifier to form a basic networked amplifier system, sharing sources, paging, control,
and processed signals. In this case one IZA 250-LZ serves as a primary amplifier for a ZA
190-HZ acting as a secondary, or slave, amplifier (note the one RCA patch cord connecting the
two amplifiers). Global volume and two sources get switched via a wall-mounted user control.
Additionally, a paging microphone and portable MP3 player are input into the system as priority
devices.
In total, eight DS 40F loudspeakers are running optimized background music in the restaurant,
hallway, and restroom areas thanks to the onboard speaker EQ for these products. DIP switch
settings are important to set correctly here as the ZA 190-HZ requires the DS 40 EQ to be
passed on from the IZA 250-LZ. Note that the ZA 190-HZ will merge both red and white RCA
channels to make a mono mix.
Amplifier Configuration
DIP Switches
Page/Mic
Aux Out
Front Mic
Aux Out
NORMAL
STEREO
DUCK
EQ
Loudspeaker EQ
Selector Switch
DS40EQ
ZA 190-HZ (Front and Rear Panels)IZA 250-LZ (Front and Rear Panels)
S
RCA Stereo
Patch
Satellite Receiver
RCA Stereo
Patch
CD Player
Paging Microphone
Portable MP3 Player
3.5mm Patch
DS 40F
Volume control with A/B switch
user interface
RCA Stereo Patch
0F
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