The Sony STR-ZA3100ES vs Onkyo PR-RZ5100 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 - 7.2 versus 11.2, respectively, for devices. The value of total harmonic distortion is also different, and for the STR-ZA3100ES it is 0.09%, but for the PR-RZ5100 it is 0.06%. Each of the compared opponents supports Bi-amping. The model STR-ZA3100ES can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with PR-RZ5100. Each of the receivers has a Bluetooth connector. The PR-RZ5100 has access to the Spotify service. 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-ZA3100ES and the PR-RZ5100. Video scaling is only possible with the PR-RZ5100. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs varies depending on the receiver, the STR-ZA3100ES has 6/2, and the PR-RZ5100 has 8/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the STR-ZA3100ES. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. STR-ZA3100ES and PR-RZ5100 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo PR-RZ5100.
Unlike the STR-ZA3100ES where 2 Multi zones is provided, the PR-RZ5100 works with 3 Multi zones. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in neither AV receiver. The Sony STR-ZA3100ES and the Onkyo PR-RZ5100 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available both models. A DTS:X surround technology is supported by devices from our comparison.