The Sony STR-DH590 vs Onkyo TX-RZ830 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 - 5.2 versus 9.2, respectively, for devices. In terms of power, there are differences, the STR-DH590 has such a ratio W/Ohm - 145/6, while the TX-RZ830 has a power of 180/6. The value of total harmonic distortion is also different, and for the STR-DH590 it is 0.09%, but for the TX-RZ830 it is 0.08%.
The manufacturer installed different DACs, the STR-DH590 received the model 192 KHz/32-bit, but the TX-RZ830 is equipped with AK4458 384 KHz/32-bit. The Bi-amping function is implemented only in the Onkyo TX-RZ830. Both Sony STR-DH590 and Onkyo TX-RZ830 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. The TX-RZ830 has access to the Spotify service.
The HDR10 function is present in each of the rivals. 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 STR-DH590 and the TX-RZ830. None of the devices can increase the resolution of the incoming video signal. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs varies depending on the receiver, the STR-DH590 has 4/1, and the TX-RZ830 has 7/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the STR-DH590 and the TX-RZ830. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. STR-DH590 and TX-RZ830 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. 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.