What is better - Onkyo TX-RZ830 vs Denon HEOS AVR?
The number of channels for receivers is different - 9.2 versus 5.1, respectively, for devices. In terms of power, there are differences, the TX-RZ830 has such a ratio W/Ohm - 180/6, while the HEOS AVR has a power of 50/8, 65/6. The value of total harmonic distortion is also different, and for the TX-RZ830 it is 0.08%, but for the HEOS AVR it is 0.05%. The Bi-amping function is implemented only in the Onkyo TX-RZ830. Both Onkyo TX-RZ830 and Denon HEOS AVR 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 Onkyo TX-RZ830 works with Deezer, TIDAL, TuneIn Radio, but the Denon HEOS AVR works with Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud. 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 TX-RZ830 and the HEOS AVR. None of the devices can increase the resolution of the incoming video signal. Operation with the Dolby Vision is only possible with the TX-RZ830.
The number of HDMI inputs/outputs varies depending on the receiver, the TX-RZ830 has 7/2, and the HEOS AVR has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the TX-RZ830 and the HEOS AVR. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. TX-RZ830 and HEOS AVR support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-RZ830. For voice control in the TX-RZ830 is used Google Assistant, but in the HEOS AVR is used Amazon Alexa, Google Assistant. There is an ECO mode in neither AV receiver. The Onkyo TX-RZ830 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the TX-RZ830. Only in the TX-RZ830 realized a DTS:X surround technology.