The Denon HEOS AVR vs Onkyo TX-NR585 comparison will be extremely helpful for people who want to get a great, powerful receiver with many functions.
The number of channels for receivers is different - 5.1 versus 7.2, respectively, for devices. In terms of power, there are differences, the HEOS AVR has such a ratio W/Ohm - 50/8, 65/6, while the TX-NR585 has a power of 80/8, 170/6. The value of total harmonic distortion is also different, and for the HEOS AVR it is 0.05%, but for the TX-NR585 it is 0.08%. The Bi-amping function is implemented only in the Onkyo TX-NR585. Both Denon HEOS AVR and Onkyo TX-NR585 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Denon HEOS AVR works with Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, but the Onkyo TX-NR585 works with Deezer, TIDAL, Pandora, TuneIn Radio. The quality of 4K/60Hz signal remains unchanged when transmitting from a source to a TV or projector via HDMI for both receivers. Signaling over HDMI in standby mode can provide the HEOS AVR and the TX-NR585. None of the devices can increase the resolution of the incoming video signal. Operation with the Dolby Vision is only possible with the TX-NR585.
The number of HDMI inputs/outputs varies depending on the receiver, the HEOS AVR has 4/1, and the TX-NR585 has 7/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the HEOS AVR and the TX-NR585. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. HEOS AVR and TX-NR585 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-NR585. For voice control in the HEOS AVR is used Amazon Alexa, Google Assistant, but in the TX-NR585 is used Google Assistant. There is an ECO mode in neither AV receiver. The Onkyo TX-NR585 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the TX-NR585. Only in the TX-NR585 realized a DTS:X surround technology.