Wiring and Connections
22
Mi Series Audio Controllers
Method B (Retrofit)
In the configuration illustrated in FIG. 14 (typical in retrofit applications where wiring is in place), each
speaker has a 2 wire feed and a “4 wire bridge” connection must be installed between the two so that the
active (4 terminal) speaker can receive a full 4 wire input (using 2 of the 4 wires) and then bring audio
back to the second speaker through the remaining 2 wires.
Source Power Handling
The Controller learns the IR commands for power on/off during the programming setup. Source
components are turned on when they are selected on the Keypad. The source remains on until it has been
idle in all zones for a duration of 10 minutes. The source is then turned off until selected again.
Quick Functionality Test
With all the components now wired in place you should be able to power each zone on and off from the
remote keypads. To test the system connections, activate one zone, and manually activate one of the
audio sources such as the tuner (assuming that the programming has not yet taken place) and move
through each zone and test that keypads respond to the on/ off and volume commands and that the source
can be heard in all zones.
The basic functionality of the Mi Series Controller on/off, volume up/ down and treble/bass/Balance/
SRS
®
are functions performed without programming.
You may also check the status of the Keypad and what the firmware version number is by accessing the
MRC setup functions located on the front of the Controller.
FIG. 14 Wiring Matrix Active Speakers - Method B
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