Onkyo HT-S990THX instruction manual Connecting Your Speakers, Speaker Connection Precautions

Connecting Your Speakers

Speaker Connection Precautions

Read the following before connecting your speakers:

•You can connect speakers with an impedance of

8 ohms or higher. If you use speakers with a lower impedance, and use the amplifier at high volume lev- els for a long period of time, the built-in protection circuit may be activated.

•Disconnect the power cord from the wall outlet before making any connections.

•Pay close attention to speaker wiring polarity. In other words, connect positive (+) terminals to only positive

(+) terminals, and negative (–) terminals to only nega- tive (–) terminals. If you get them the wrong way around, the sound will be out of phase and will sound unnatural.

•Unnecessarily long, or very thin speaker cables may affect the sound quality and should be avoided.

•Be careful not to short the positive and negative wires.

Doing so may damage the AV receiver.

• Don’t connect more than one cable to each speaker termi- nal. Doing so may damage the AV receiver.

• Don’t connect one speaker to several terminals.

Subwoofer	Front Right		Center		Front Left
			Green
			Red
LINE INPUT					White
	SURROUND BACK	SURROUND	FRONT	CENTER
	SPEAKERS	SPEAKERS	SPEAKERS A	SPEAKER
	L		L
	R		R
PRE OUT
SUB					Blue
WOOFER

Brown Gray

Tan

Surround	Surround	Surround	Surround
Back Right	Back Left	Right	Left

Connecting Speaker Set A

The AV receiver’s positive (+) speaker terminals and speaker’s positive (+) terminals are color-coded for ease of identification. (The negative (–) speaker terminals are all black.) Match the color of each cable to the corre- sponding speaker terminal.

Speaker terminal	Color
Front left	White
Front right	Red
Center	Green
Surround left	Blue
Surround right	Gray
Surround back left	Brown
Surround back right	Tan

1 On the AV receiver, unscrew the terminal. Fully insert the bare wires. Make sure that the bare wire is touching the inside of the pole. Screw the termi- nal tight.

2	On the speakers, loosen the binding posts.
	Insert the speaker wires
	into the binding posts as
	shown, then tighten the
	binding posts.
3	Using the supplied RCA cable, connect the AV

receiver’s SUBWOOFER PRE OUT to LINE INPUT on the subwoofer.

Make sure the cable is plugged all the way.

Connecting Speaker Set B (sold separately)

1	Strip 3/8" (10 mm) of insu-	3/8" (10 mm)
	lation from the ends of the
	speaker cables, and twist
	the bare wires tightly, as
	shown.
2 While pressing the lever, insert
	the wire into the hole, and then
	release the lever.
	Make sure that the terminals are
	gripping the bare wires, not the
	insulation.

Note:

When speaker set B is turned on, speaker set A is reduced to 5.1-channel playback.

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