Speaker Precautions

Placement

•The speaker cabinets are made out of wood and are therefore sensitive to extreme temperatures and humidity, do not put them in locations subject to direct sunlight or in humid places, such as near an air condi- tioner, humidifier, bathroom, or kitchen.

•Do not put water or other liquids close to the speakers. If liquid is spilled over the speakers, the drive units may be damaged.

•Speakers should only be placed on sturdy, flat surfaces that are free from vibration. Putting them on uneven or unstable surfaces, where they may fall and cause dam- age, will affect the sound quality.

•Subwoofer is designed to be used in the upright verti- cal position only. Do not use it in the horizontal or tilted position.

•If the unit is used near a turntable, CD player or DVD player, howling or slipping of sound may occur. To prevent this, move the unit away from the turntable, CD player or DVD player otherwise lower the unit’s output level.

Using Close to a TV or Computer

TVs and computer monitors are magnetically sensitive devices and as such are likely to suffer discoloration or picture distortion when conventional speakers are placed nearby. To prevent this, the SKF-750F and SKC-750C feature internal magnetic shielding. In some situations, however, discoloration may still be an issue, in which case you should turn off your TV or monitor, wait 15 to 30 minutes, and then turn it back on again. This normally activates the degaussing function, which neutralizes the magnetic field, thereby removing any discoloration effects. If discoloration problems persist, try moving the speakers away from your TV or monitor. Note that discol- oration can also be caused by a magnet or demagnetizing tool that’s too close to your TV or monitor.

Input Signal Warning

The speakers can handle the specified input power when used for normal music reproduction. If any of the follow- ing signals are fed to them, even if the input power is within the specified rating, excessive current may flow in the speaker coils, causing burning or wire breakage:

1.Interstation noise from an untuned FM radio.

2.Sound from fast-forwarding a cassette tape.

3.High-pitched sounds generated by an oscillator, elec- tronic musical instrument, and so on.

4.Amplifier oscillation.

5.Special test tones from audio test CDs and so on.

6.Thumps and clicks caused by connecting or discon- necting audio cables (Always turn off your amplifier before connecting or disconnecting cables.)

7.Microphone feedback.

Package Contents

Make sure you have the following items:

AV receiver (HT-R557)

Remote controller and two batteries (AA/R6)

Indoor FM antenna

AM loop antenna

Speaker setup microphone

HDMI cable

Speaker terminal tool

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Onkyo HT-SP904 instruction manual Speaker Precautions, Package Contents
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HT-SP904 specifications

The Onkyo HT-SP904 is a sophisticated home theater system that combines sleek design with cutting-edge audio technology, providing a comprehensive solution for immersive entertainment experiences. This system is aimed at both home theater enthusiasts and casual viewers, delivering exceptional sound quality whether you're watching movies, playing games, or listening to music.

One of the standout features of the HT-SP904 is its powerful 5.1-channel speaker configuration. This includes five satellite speakers and a subwoofer that work together to create an enveloping soundstage. Each satellite speaker is designed to deliver rich mids and highs, while the dedicated subwoofer adds deep, rumbling bass that enhances the overall audio experience. This setup is perfect for enjoying the nuances of a film's score or the dynamic effects in an action sequence.

The HT-SP904 also incorporates Onkyo's proprietary Wide Range Amplification Technology (WRAT), which ensures that audio is reproduced with clarity and detail. WRAT minimizes distortion across various volume levels, allowing users to experience music and dialogue as intended by the creators. This technology contributes to the system's ability to reproduce high-fidelity sound, making it ideal for both cinematic audio and music playback.

Connectivity is another strong suit of the HT-SP904. It features multiple HDMI inputs, enabling seamless integration with the latest Blu-ray players, gaming consoles, and streaming devices. Furthermore, the inclusion of 4K video pass-through ensures that users can enjoy high-definition visuals without compromising picture quality. The system also supports various audio formats, including Dolby TrueHD and DTS-HD Master Audio, which enhance the home cinema experience by providing immersive surround sound.

The sleek and stylish design of the HT-SP904 allows it to complement a variety of home decor styles. The front panel is elegantly crafted, and the satellite speakers can be either mounted on walls or placed on stands, providing flexibility in setup.

In summary, the Onkyo HT-SP904 is a powerful home theater system that excels in sound quality, connectivity, and design. With its 5.1-channel setup, advanced amplification technology, and support for high-definition audio and video formats, it caters to both the needs of audiophiles and the everyday viewer. Whether you’re hosting a movie night or enjoying your favorite playlist, the HT-SP904 promises a compelling audio experience that enhances any entertainment setting.
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