NOTE: The amplifier and the stereo must connect to the same physical power ground location for the
AMPLIFIER ON signal to function properly.
7 Using a 4 mm (
5
/
32
in.) flat (slotted) screwdriver, connect the 20 AWG (0.52 mm
2
) wire to the REM terminal
on the power connection block.
NOTICE
Do not connect the power terminal block to the amplifier at this time. Make all of the other connections to the
stereo and speakers before completing the connection to power (
Completing the Connections, page 14
).
Signal and Speaker Connection Considerations
When connecting your stereo and speakers to the amplifier, observe the following considerations:
• All speakers connect to the amplifier using terminal blocks (
Connecting Speakers to the Amplifier, page 11
).
• When connecting a subwoofer to the amplifier, you must use the high-power bridge adapter (
Subwoofer to the Amplifier, page 12
).
• Each set of zone speaker terminals on the amplifier is paired to the RCA inputs for that zone.
• Each channel supports a nominal 4 Ohm speaker load impedance, and a 2 Ohm minimum speaker load
impedance.
• You can connect either a zone line out or a subwoofer line out from the stereo to any of the zone RCA inputs
on the amplifier.
• You should use the proper gauge speaker wire noted in the speaker wire gauge guide to connect speakers
and subwoofers to the amplifier (
Speaker Wire Gauge Guide, page 13
).
• You should observe the zone and polarity markings for each channel when connecting speakers to the
amplifier. The speaker ports for each zone are marked with negative (-) and positive (+) for the left (L) and
right (R) channels. When connecting a subwoofer, the speaker terminal polarity is marked on the high-power
bridge adapter.
In the following example, a single 4 Ohm subwoofer is connected to ZONE 2 using the high-power bridge
bracket, and pairs of 4 Ohm speakers are connected to the right and left channels for the other two zones.
In this example, you must connect the single RCA subwoofer line out connector from the stereo to the
uncovered L RCA port for ZONE 2 on the amp , and you must connect the two RCA zone line out connectors
from the stereo
to the other two zone RCA ports on the amplifier .
10
Fusion Apollo Series Installation Instructions