Connecting a Subwoofer to the Amplifier
NOTICE
You should connect only a 4 Ohm subwoofer to the amplifier when using the high-power bridge adapter.
Connecting a 2 Ohm subwoofer may cause damage to the amplifier or subwoofer.
You must install the provided high-power bridge adapter on the speaker terminal block when connecting a
subwoofer to a zone. This cover guarantees that the correct speaker terminals are connected and it signals to
the amplifier that the zone is operating in high-power bridge mode. If needed, you can purchase additional
adapters from your Fusion dealer.
1 Place the high-power bridge adapter over an empty speaker terminal block and press until it clicks in place.
2 Route the appropriate gauge speaker wire to the subwoofer and the amplifier.
NOTE: It is recommended to label both ends of the speaker wire so you know which wires routes to which
speakers and subwoofers.
3 Connect the speaker wire to the subwoofer, observing polarity.
4 Using a #0 Phillips or a 3 mm (
1
/
8
in.) flat (slotted) screwdriver, connect the speaker wires to the speaker
terminal blocks, observing the polarity labeled on the high-power bridge cover.
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Fusion Apollo Series Installation Instructions