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/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, DeepColor, 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/DVD player must also support HDMI output of the above audio formats.

Appendix

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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HT-r591 specifications

The Onkyo HT-R591 is a versatile and high-performance home theater receiver designed to elevate the audio experience for movie lovers and music enthusiasts alike. With its comprehensive features and advanced technologies, this model was engineered to deliver immersive sound quality while being user-friendly and adaptable to a variety of setups.

At the heart of the Onkyo HT-R591 is its powerful amplification system. With a robust 7.1-channel setup, it provides an impressive output of up to 100 watts per channel, ensuring that sound is delivered dynamically and with clarity. This receiver supports a wide range of audio formats, including Dolby TrueHD and DTS-HD Master Audio, allowing for an authentic cinematic experience. The onboard decoding ensures that high-definition audio streams are reproduced with pristine accuracy.

Another notable feature of the HT-R591 is its video capabilities. It includes multiple HDMI inputs, which support 4K pass-through, making it compatible with the latest display technology. This ensures that users can connect multiple devices—such as Blu-ray players, gaming consoles, and streaming devices—without compromising on quality. The receiver also boasts upscaling capabilities that enhance lower resolution signals to near-4K quality, providing a visually stunning experience for all types of content.

In addition to its premium audio and video performance, the Onkyo HT-R591 incorporates advanced sound calibration technology. The AccuEQ room acoustic calibration system optimizes the sound output based on the room's characteristics, ensuring an ideal listening experience tailored to your environment. This technology detects speaker placement and adjusts settings automatically, simplifying the setup process and enhancing audio accuracy.

User convenience is another cornerstone of the Onkyo HT-R591. It comes with an intuitive remote control and an easy-to-navigate on-screen display, making it accessible for users of all technical backgrounds. Furthermore, with the inclusion of network connectivity options, users can stream music directly from their devices or access popular streaming services, expanding their audio library effortlessly.

Overall, the Onkyo HT-R591 stands out as a feature-rich home theater receiver that combines stellar audio performance, advanced video processing, and user-friendly functionality. Whether you are watching the latest blockbuster or enjoying your favorite music tracks, this receiver provides a comprehensive solution for all your home entertainment needs.
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