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About Subwoofer Input/Output Terminals
(HDA-M80/HDA-V90 only)
• The input is stereo but the output is monaural.
• Reversing subwoofer polarity (swapping positive
and negative connections to the subwoofer) may
be desirable in some installations for optimum
bass performance.
About Bridged Connections
In the bridged mode, connect the left positive to
the positive terminal of the speaker and the right
negative to the negative terminal of the speaker.
Do not use the speaker (–) terminals as a common
lead between the left and right channels.
NOTE:
• Do not connect the speaker (–) terminal to the
vehicle's chassis.
Cautions on wire lead connections
When using third-party wire cables (power supply
wire), use the supplied screws to simplify the
connection. Refer to the description below for the
proper procedure. If you are in doubt about how to
make this connection, consult your dealer.
1. Check the wire size.
• For details on the wires size to be used, refer to
the supplied "Cautions on Power Supply Wires
Connection" and "Cautions on Power Supply
Wires" (page 18), and then use the wire of
the specified size.
• If the wire gauge used is unknown, ask your
dealer.
2. Remove the insulation from the ends of the wire
leads by about 7 – 10 mm (9/32" – 13/32").
7 – 10 mm
(9/32" – 13/32")
Twist the tip of wire leads
NOTES:
• If length of the exposed wire is too short, a poor
connection may occur causing operation failure
or sound interruption.
• On the other hand, if the length is too long, an
electrical short-circuit may occur.
6
-EN
Lead end side of
the product
3. Tighten the hexagon hole screw with the
hexagon wrench (Large or Small) (included) to
secure the lead.
Before making this connection, use insulated
shrink tubing to cover any exposed wire
extending beyond the terminal.
Battery Connector
Hexagon wrench
Ground Lead
Hexagon wrench
Speaker Output Lead (-)
NOTES:
• Be sure to use the Hexagon hole screw attached
to the Battery Connector or Speaker Connector.
• For safety reasons, connect the battery leads last.
• To prevent disconnection of the leads or
dropping of the unit, do not use the cabling to
carry the unit.
Battery Lead
Remote Turn On Lead
Speaker Connector
Speaker Output Lead (+)
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