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S128P
INSTALLATION MANUAL
Stereo Zone w/Two Stereo Sub-Zones
This application is ideal for large areas where independent volume control is needed. Volume is controlled in a vari-
able zone using touch pads or touch panels. Sources for the entire zone are selected and controlled from this same
keypad or touch panel.
Connect the Fixed Zone Audio Outputs to two impedance matching volume controls, then to two pairs of speakers.
The volume controls will ramp volume up/down for only the speakers that they are connected to, giving separate
volume control in all areas of the zone. If using electronic volume controls, a hand-held IR remote control can be
used for source select and control in the sub-zone areas. If using rotary volume controls, all source selection and
control must be done from the keypad or touch panel.
This application has cost-saving advantages. Only two pairs of amp channels are needed. If using electronic vol-
ume controls, independent volume up/down is available as well as source selection and control. In this application,
separate source selection is only available in one area.
S128P
D12
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S128P.indd 22
1
3
2
POWER
I
+
+
+
O
_
_
_
120 VAC 60 Hz
SPREAKER OUTPUTS (CLASS 2 WIRING) 75 W/CH @ 8 ohms
1440W
+
+
+
+
+
_
_
_
7
8
9
Txx AL FUSE
Model D12
REPLACE WITH SAME
TYPE AND RATING ONLY.
Digital Power Amplifier
Figure 2-6: Two Stereo Sub-Zones
Zone 1
5
4
6
IN
OUT
1
+
+
+
BUS
A
2
_
_
_
IN
OUT
7
BUS
B
+
+
+
+
8
10
_
_
_
IN
10
11
12
OUT
OUTPUT
USB
VIA!NET
ETHERNET
© ELAN Home Systems 2009 • All rights reserved.
E L A N H O M E S Y S T E M S
IN
OUT
IN
OUT
3
5
4
6
IN
OUT
IN
OUT
OUT
11
9
12
ALL
INPUT
IR
ON
1/2
3/4
5/6
7/8
9/10
11/12
IR
+12VDC
+12V TRIGGER INPUTS
TRIGGER
OUT
1/15/2009 1:06:53 PM
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