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Bridge
+
Bridge
-
SPEAKER
Line In
Line In
Shaded Area is for Bridging
Bus
1 2 Line In
Bus
1 2 Line In
BR ST
Vol
Vol
Ch 5
ZONE 3
Ch 6
+
+
Configuring a Stereo or Independent Channel Zone -
Independent channels may be connected
to a minimum load impedance of 4 ohms. To configure the two channels in a zone as a stereo pair,
or as independent channels, set the Bridge/Stereo switch to ST and connect one speaker to each of
the left and right pairs of binding posts (as shown below).
With the zone configured this way, each amplifier is independent and is controlled by its own
separate Volume control. The Input Selector switch (also independent for each channel) is used to
select an input source for that channel. If Line In is selected, then the unbalanced (RCA) input jack
directly below the switch is used as the signal source for that channel. If Bus 1 or Bus 2 is selected,
then the selected Input Bus is used as the signal source.
Note: The channel inputs assume a stereo relationship between the channels and the input
busses. When a given bus is selected as the source for a particular channel, odd numbered
channels will receive input from the Right Input for the chosen bus and even numbered
channels will receive input from the Left Input for the chosen bus. That way, if you select
a certain bus as the source for both channels in a zone, the two channels in that zone will
provide a stereo output that corresponds to the stereo input signal on the chosen bus.
In the figure below, with the switches set as shown, and a stereo source connected to Input Bus 2,
the speakers will be playing the signal from Input Bus 2, in stereo, with the right channel on Channel
5 and the left channel on Channel 6.
Note: Since the input for each channel can be chosen independently, it is possible to create
configurations where inputs other than stereo pairs are connected to the “left” and “right”
inputs of one bus, and are routed independently to various amplifier channels. If this is not
your express intent and you are using stereo inputs and outputs, then be sure to set BOTH
Input Selector switches on each zone to the same source when using stereo busses.
