It makes sense comparing Sony STRZA5000ES vs Onkyo TX-RZ710 because they both are able to give some premium features.
A significant difference between the receivers in the number of channels, Sony STRZA5000ES has 9.2 versus 7.2 for Onkyo TX-RZ710. Regarding power, then STRZA5000ES has such a W/Ohm ratio - 130/8 when TX-RZ710 has a power of 175/6. The THD is 0.09% for the STRZA5000ES but 0.08% for the TX-RZ710. Both the STRZA5000ES and the TX-RZ710 support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Only the TX-RZ710 has Bluetooth support. Only the TX-RZ710 supports Spotify. Compared AV receivers retain the quality of 4K/60Hz signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. Both rivals can scale the resolution of the incoming HDMI signal. Dolby Vision technology found support only on the STRZA5000ES.
The Sony STRZA5000ES has 6/2 HDMI inputs/outputs versus 8/2 HDMI connectors of the Onkyo TX-RZ710. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. Both models support the standard HDCP 2.2. The TX-RZ710 has a built-in phono stage for connecting a vinyl player.
The STRZA5000ES supports 3 Multi-room zones, versus 2 for the TX-RZ710. A voice control is not available. An ECO mode is only available for the TX-RZ710. The setup assistant will help you configure Sony STRZA5000ES.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.