Wiring and Connections
23
Delta Series Audio Controllers

Method B (Retrofit)

In the configuration illustrated in FIG. 17 (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.
FIG. 16 Wiring Matrix Active Speakers - Method A