About HDMI

Designed to meet the increased demands of digital TV, HDMI (High Definition Multimedia Interface) is a new digital interface standard for connecting TVs, projectors, Blu-ray Disc players/DVD players, set-top boxes, and other video components. Until now, several separate video and audio cables have been required to connect AV components. With HDMI, a single cable can carry control signals, digital video, and up to eight channels of digital audio (2-channel PCM, multichannel digital audio, and multichannel PCM).

The HDMI video stream (i.e., video signal) is compatible with DVI (Digital Visual Interface)*1, so TVs and displays with a DVI input can be connected by using an HDMI-to-DVI adapter cable. (This may not work with some TVs and displays, resulting in no picture.)

The AV receiver uses HDCP (High-bandwidth Digital Content Protection)*2, so only HDCP-compatible components can display the picture.

The AV receiver’s HDMI interface is based on the following:

Audio Return Channel, 3D, x.v.Color, Deep Color, Lip Sync, DTS-HD Master Audio, DTS-HD High Resolution Audio, Dolby TrueHD, Dolby Digital Plus, DSD and Multichannel PCM

Supported Audio Formats

•2-channel linear PCM (32–192 kHz, 16/20/24 bit)

•Multichannel linear PCM (up to 7.1 ch, 32–192 kHz, 16/20/24 bit)

•Bitstream (DSD, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, DTS, DTS-HD High Resolution Audio, DTS-HD Master Audio)

Your Blu-ray Disc player/DVD player must also support HDMI output of the above audio formats.

About Copyright Protection

The AV receiver supports HDCP (High-bandwidth Digital Content Protection)*2, a copy-protection system for digital video signals. Other devices connected to the AV receiver via HDMI must also support HDCP.

*1 DVI (Digital Visual Interface): The digital display interface standard set by the DDWG*3 in 1999.

*2 HDCP (High-bandwidth Digital Content Protection): The video encryption technology developed by Intel for HDMI/DVI. It’s designed to protect video content and requires a HDCP-compatible device to display the encrypted video.

*3 DDWG (Digital Display Working Group): Lead by Intel, Compaq, Fujitsu, Hewlett Packard, IBM, NEC, and Silicon Image, this open industry group’s objective is to address the industry’s requirements for a digital connectivity specification for high-performance PCs and digital displays.

Note

•The HDMI video stream is compatible with DVI (Digital Visual Interface), so TVs and displays with a DVI input can be connected by using an HDMI-to-DVI adapter cable. (Note that DVI connections only carry video, so you’ll need to make a separate connection for audio.) However, reliable operation with such an adapter is not guaranteed. In addition, video signals from a PC are not supported.

•The HDMI audio signal (sampling rate, bit length, etc.) may be restricted by the connected source component. If the picture is poor or there’s no sound from a component connected via HDMI, check its setup. Refer to the connected component’s instruction manual for details.

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Onkyo TX-SR508 instruction manual About Hdmi, Supported Audio Formats, About Copyright Protection
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TX-SR508 specifications

The Onkyo TX-SR508 is a versatile home theater receiver designed for audiophiles looking to enhance their audio-visual experience. This model stands out in its class due to its combination of advanced features, high-quality build, and user-friendly operation.

One of the primary features of the TX-SR508 is its capability to decode multiple high-definition audio formats. Supporting Dolby TrueHD and DTS-HD Master Audio, the receiver ensures that users enjoy a cinematic sound experience, delivering a clear and immersive audio performance. Additionally, it offers Dolby Pro Logic IIz, which enhances the surround sound experience by adding front height channels, enriching the overall soundstage.

The TX-SR508 is equipped with a powerful amplifier that provides 75 watts per channel across seven channels, ensuring that it can adequately drive a full home theater speaker setup. With impedance options of 4 to 16 ohms, it is versatile enough to work with a variety of speaker systems.

Connectivity is another strong suit of the Onkyo TX-SR508. It features multiple HDMI inputs, enabling users to connect various high-definition devices, such as Blu-ray players, gaming consoles, and streaming devices. The HDMI 1.4a standard used in this receiver supports 3D video pass-through, making it future-proof for the current generation of home theater setups.

For those who still enjoy traditional sources, it includes analog audio inputs, as well as a phono input for connecting a turntable, catering to vinyl enthusiasts. The built-in AM/FM tuner and the capability to connect to an external internet radio enrich the listening options available to users.

Integrated technologies such as Audyssey 2EQ speaker calibration assist in optimizing sound for the room environment, providing a balanced audio experience regardless of the room's acoustics. The receiver also boasts an intuitive graphical user interface, making setup and navigation straightforward for users of all levels.

Overall, the Onkyo TX-SR508 combines cutting-edge audio technologies, extensive connectivity options, and practical features, making it a solid choice for anyone looking to build or upgrade their home theater system. Whether enjoying a movie, gaming, or listening to music, the TX-SR508 ensures an impressive performance, grounded in both quality and versatility.
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