Speaker Configuration

The following table indicates the channels you should use depending on the number of speakers that you have.

For 9.2-channel surround-sound playback, you need 9 speakers and 2 powered subwoofers.

Number of

speakers

Front speakers

✔

Center

✔

speaker

Surround

✔

speakers

Surround back

✔

speaker*1

Surround back

✔

speakers

Front high

✔

speakers

Front wide

✔

speakers

*1 If you’re using only one surround back speaker, connect it to

the SURR BACK/ZONE 3 L terminal.

No matter how many speakers you use, 2 powered sub- woofers are recommended for a really powerful and solid bass.

To get the best from your surround sound system, you need to set the speaker settings. You can do this automati- cally (➔ 32) or manually (➔ 50).

Speaker Connection Precautions

Read the following before connecting your speakers:

•You can connect speakers with an impedance of between 4 and 16 ohms. If the impedance of any of the connected speakers is 4 ohms or more, but less than 6 ohms, be sure to set the minimum speaker impedance to “4ohms” (➔ 51). If you use speakers with a lower impedance, and use the amplifier at high volume levels 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.

•Read the instructions supplied with your speakers.

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

•If you use 4 or 5 speakers, connect each of the two sur- round speakers to the SURR L/R terminals. Do not con- nect them to the SURR BACK/ZONE 3 L/R, FRONT WIDE/ZONE 2 L/R, or FRONT HIGH L/R terminals.

•Be careful not to short the positive and negative wires. Doing so may damage the AV receiver.

•Make sure the metal core of the wire does not have con- tact with the AV receiver’s rear panel. Doing so may damage the AV receiver.

Attaching the Speaker Cable Labels

The AV receiver’s positive (+) speaker terminals are all red (the negative (–) speaker terminals are all black).

Speaker	Color
Front left, Front high left, Front wide left,	White
Zone 2 left

Front right, Front high right, Front wide right,	Red
Zone 2 right

Center	Green

Surround left	Blue

Surround right	Gray

Surround back left, Zone 3 left	Brown

Surround back right, Zone 3 right	Tan

The supplied speaker cable labels are also color-coded and you should attach them to the positive (+) side of each speaker cable in accordance with the table above. Then all you need to do is to match the color of each label to the corresponding speaker terminal.

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

•Don’t connect one speaker to several terminals.

TX-NR3008 specifications

The Onkyo TX-NR3008 is a high-performance A/V receiver that has garnered attention for its impressive array of features and advanced technologies. As part of Onkyo's acclaimed line of home theater receivers, the TX-NR3008 is designed to deliver an immersive audio and video experience, making it an ideal choice for audiophiles and home theater enthusiasts alike.

One of the standout features of the TX-NR3008 is its powerful amplifier section, capable of delivering 135 watts per channel (8 ohms) across all seven channels. This ensures rich, dynamic sound reproduction, whether you are watching your favorite movies or listening to music. The receiver also supports 9.2-channel surround sound, allowing users to add external amplifiers to create a more expansive soundstage.

In terms of audio processing, the TX-NR3008 incorporates advanced DTS-HD Master Audio and Dolby TrueHD formats, which provide lossless audio quality for a truly cinematic experience. Additionally, the receiver is equipped with Onkyo's proprietary AccuEQ room calibration technology, which analyzes the acoustics of your space and optimizes sound output accordingly. This ensures that every listener experiences superior sound quality, regardless of seating position.

The TX-NR3008 also offers an array of connectivity options. With six HDMI inputs, including support for 3D video and 4K resolution, users can easily connect various devices, such as Blu-ray players, gaming consoles, and streaming devices. The HDMI capabilities extend to audio return channel (ARC) functionality, making it convenient to connect with smart TVs. The receiver also provides legacy support with composite and component video inputs, as well as digital optical and coaxial audio inputs.

Another notable feature is its built-in internet streaming capabilities, allowing users to access popular music services like Pandora, Spotify, and SiriusXM right from the receiver. Its compatibility with Wi-Fi and wired Ethernet connections adds further versatility, enabling the TX-NR3008 to be incorporated into multi-room audio setups.

In summary, the Onkyo TX-NR3008 is a formidable A/V receiver that excels in delivering top-notch audio and video performance. Its robust amplification, advanced surround sound processing, extensive connectivity options, and streaming capabilities make it an exceptional choice for anyone looking to create an immersive home theater experience. With its blend of power, precision, and versatility, the TX-NR3008 remains a strong contender in the competitive market of high-end A/V receivers.

Onkyo TX-NR3008 instruction manual Speaker Configuration, Speaker Connection Precautions

Models: TX-NR3008