Wiring and Connections
27
Metreau Keypads
Split Zone / Analog Volume Control
In cases of split zones where more than one set of speakers are driven from the same keypad, it is
sometimes desirable to place a volume control in the split zone. FIG. 28 shows the connections to a
remote zone, and “Autoformer” volume control device.
Ensure the impedance setting doesn't fall below 4 Ohms.
If you are installing 2 pairs of speakers in a zone and the speakers are 8 Ohms, it is not
necessary to use an impedance matching autoformer type volume control. A standard stereo
volume control will perform properly. The impedance will be approximately 4 Ohms.
If you are using an impedance matching volume control with 2 pairs of speakers set the
impedance matching to the 2X setting.
FIG. 28
Split Zone / Analog Volume control (Option 2) one keypad
Right
Left
Volume Control
Metreau keypad
Right
Left
L D G R
Zone Output Connector
(on Matrix Controller)
It is not recommended to install more than 2 pair of speakers per zone.
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