Extron Electronics FF 220T User Guide - Manual (Page 12)

8. Connect wires from the transformer to the speaker.
a. Keep the wire strands together by twisting them (do not tin the wires).
b. Connect the red positive (+) wire to the + speaker terminal and connect the black
negative (‑) wire to the ‑ speaker terminal as shown below.
To transformer
Red Wire
Black Wire
Transformer Cover Plate
Rear of Speaker
Figure 9. Wiring the Speaker to the Transformer
c. Proceed to step 10 .
Wiring for Installation with Direct 8 ohm Connection to an Amplifier
(bypassing the transformer)
9. See the block diagram below.
Amplifier
Transformer
Plate
FF 220T
Direct 8 ohm Connection
(bypassing the transformer)
Figure 10. Direct 8 Ohm Connection
a. Route the wires from the amplifier to the speaker using the same procedure for
routing speaker wire (and conduit if applicable) through the cover plate as described
in step
5 . Strip 3/16 inch (5 mm) from the ends of the two speaker
wire leads (+ and ‑) coming from the amplifier. Keep the wire strands together by
twisting them (do not tin the wires), and secure the wires to the input terminals of
the speaker, observing the correct polarity.
FF 220T User Guide • Installation 8