Yamaha AVENTAGE RX-A670 Owner's Manual

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Connecting speakers/subwoofer
When connecting 6-ohm speakers 
(U.S.A. and Canada models only)
Set the unit’s speaker impedance to “6 Ω MIN”. For details, see “Setting the 
speaker impedance” in the Owner’s Manual.
Precautions for connecting speaker cables
• Be sure that the unit and subwoofer are turned off.
• Prepare speaker cables in a place away from the unit, to avoid accidentally 
dropping wire strands into the unit's interior which could result in a short 
circuit or malfunction of the unit.
• Improper connection of speaker cables could cause a short circuit resulting 
in damage to, or malfunctioning of, the unit or speakers.
– Carefully remove approximately 10 mm 
(3/8") of insulation from the speaker-
connection ends of the cables, and twist 
the bare wires of each speaker cable 
together firmly.
– Do not allow the bare wires of separate speaker 
cables to come into contact with one another.
– Do not allow speaker cable bare wires to come into 
contact with metal parts on the unit (rear panel and 
screws).
If “Check SP Wires” is shown on the front display when the unit is turned on, 
turn off the unit and be sure that speaker cables have not caused a short 
circuit.
Positioning speakers
Use the diagram as a reference for positioning speakers.
1 Front speaker (L)
2 Front speaker (R)
3 Center speaker
4 Surround speaker (L)
5 Surround speaker (R)
E Front presence speaker (L)*
R Front presence speaker (R)*
9 Subwoofer
* For 5.1.2-channel system
5
4
2
1
3
9
E
R
*
*
10° to 30°
10° to 30°
10 mm
(3/8")