Specifications

AV Receiver (HT-R557)

■Amplifier Section

Rated Output Power (FTC)

All channels:

110 watts minimum continuous power

 

per channel, 8 ohm loads, 2 channels

 

driven at 1 kHz, with a maximum total

 

harmonic distortion of 0.9%

Rated Output Power (IEC)

 

5 ch ⋅ 130 W at 8 ohms, 1 kHz, 1 ch

 

driven

Maximum Output Power (JEITA)

 

5 ch ⋅ 160 W at 8 ohms, 1 kHz, 1 ch

 

driven

Dynamic Power

210 W (3Ω, 1 ch driven)

 

190 W (4Ω, 1 ch driven)

 

130 W (8Ω, 1 ch driven)

THD (Total Harmonic

 

Distortion)

0.08% (Power Rated)

Damping Factor

60 (Front, 1kHz, 8Ω)

Input Sensitivity and

200 mV/ 47 kΩ (LINE)

Impedance

Output Level and

200 mV/ 2.2 kΩ (REC OUT)

Impedance

Frequency Response

5 Hz–100 kHz/ +1 dB–3 dB

 

(Direct mode)

Tone Control

±10 dB, 50 Hz (BASS)

 

±10 dB, 20 kHz (TREBLE)

Signal to Noise Ratio

100 dB (LINE, IHF-A)

Speaker Impedance

8Ω–16Ω

■ Video Section

 

Input Sensitivity/Output

1 Vp-p /75Ω(Component and S-Video Y)

Level and Impedance

 

0.7 Vp-p /75Ω(Component PB/CB, PR/CR)

 

0.28 Vp-p /75Ω(S-Video C)

 

1 Vp-p /75Ω(Composite)

Component Video

 

Frequency Response

5 Hz – 50 MHz

■Tuner Section

FM Tuning Frequency

 

Range

87.5 MHz– 107.9 MHz

AM Tuning Frequency

 

Range

530 kHz–1710 kHz

Radio Presets

40

■ General

Power Supply

AC 120 V, 60 Hz

Power Consumption

4.5 A

Standby Power

 

 

Consumption

0.1 W

Dimensions

435 ⋅ 150 ⋅ 377 mm

(W ⋅ H ⋅ D)

 

17-1/8" ⋅ 5-7/8" ⋅ 14-13/16"

Weight

10.2 kg

 

22.5 lbs.

Video Inputs

 

 

HDMI

IN1, IN2

Component

DVD, VCR/DVR, CBL/SAT

S-Video

DVD, VCR/DVR, CBL/SAT

Composite

DVD, VCR/DVR, CBL/SAT, AUX

Video Outputs

 

 

HDMI

OUT

Component

OUT

S-Video

MONITOR, VCR/DVR

Composite

MONITOR, VCR/DVR

Audio Inputs

 

 

Digital Inputs

Optical: 2

 

Coaxial: 2

Analog Inputs

DVD (MULTICHANNEL), VCR/DVR,

 

CBL/SAT, AUX, TAPE, CD

Multichannel Inputs

5.1

 

Audio Outputs

 

 

Analog Outputs

TAPE, VCR/DVR

Subwoofer Pre Outputs

1

 

Speaker Outputs

L, R, C, SL, SR

Phones

1

 

RI Dock DS-A1X

 

 

 

Power supply

AC adapter (5 V DC)

Power consumption

 

 

(iPod not inserted)

0.5 W

Weight

220 g

 

0.48 lbs.

Dimensions

112 ⋅ 60 ⋅ 112 mm

(W ⋅ H ⋅ D)

 

4-7/16" ⋅ 2-3/8" ⋅ 4-7/16"

Connectors

VIDEO OUT, AUDIO OUT L/R,

 

 

jack

 

 

Specifications and features are subject to change without notice.

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Onkyo HT-SP904 instruction manual Specifications, AV Receiver HT-R557, RI Dock DS-A1X
Page 69 Page 71

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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