Onkyo TX-RZ710 vs Yamaha RX-V4A comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Onkyo TX-RZ710 has 7.2 versus 5.2 for Yamaha RX-V4A. Regarding power, then TX-RZ710 has such a W/Ohm ratio - 175/6 when RX-V4A has a power of 80/6. The THD is 0.08% for the TX-RZ710 but 0.06% for the RX-V4A. Both the TX-RZ710 and the RX-V4A support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Onkyo TX-RZ710 has support for AirPlay, and its competitor in our comparison - AirPlay, AirPlay 2. Spotify can be used on each receiver. The TX-RZ710 can work with the audio stream from Deezer, TIDAL, Pandora, Tunein Radio, and the RX-V4A can receive a content from Deezer, TIDAL, Pandora, SiriusXM, Qobuz. 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 RX-V4A.
The Onkyo TX-RZ710 has 8/2 HDMI inputs/outputs versus 4/1 HDMI connectors of the Yamaha RX-V4A. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the RX-V4A. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The TX-RZ710 supports the protection of digital content of the standard HDCP 2.2, versus HDCP 2.3 in the RX-V4A. The TX-RZ710 has a built-in phono stage for connecting a vinyl player. It is also worth noting that the ECO mode is presented in each of the receivers. The setup assistant will help you configure Yamaha RX-V4A.
Only the TX-RZ710 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the TX-RZ710.