Yamaha DSP-AX463 Owner's Manual page 14

Connections
■ Before connecting to the SPEAKERS
terminal
A speaker cord is actually a pair of insulated cables
running side by side. Cables are colored or shaped
differently, perhaps with a stripe, groove or ridges.
Connect the striped (grooved, etc.) cable to the "+" (red)
terminals of this unit and your speaker. Connect the plain
cable to the "–" (black) terminals.
Remove approximately 10 mm (3/8") of insulation
from the end of each speaker cable and then
twist the bare wires of the cable together to
prevent short circuits.
10 mm (3/8")
■ Connecting to the SPEAKER terminals
2
1
3
1
Loosen the knob.
2
Insert the bare end of the speaker wire into
the hole on the terminal.
3
Tighten the knob to secure the wire.
12
En
Red: positive (+)
Black: negative (–)