An affordable AV receiver is always a good option to consider, so Sony STR-ZA810ES vs Yamaha RX-V475 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Sony STR-ZA810ES has 7.2 versus 5.1 for Yamaha RX-V475. Regarding power, then STR-ZA810ES has such a W/Ohm ratio - 100/8 when RX-V475 has a power of 80/6. The THD is the same and is 0.09%.
Characteristics of digital to analog converter (DAC) are different, 384 KHz/32-bit for STR-ZA810ES and Burr-Brown 192 KHz/24-bit for the RX-V475. Only the STR-ZA810ES supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Only the Sony STR-ZA810ES can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay. Spotify can be used on each receiver. 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. The STR-ZA810ES can scale the input HDMI signal, unlike the RX-V475. Dolby Vision technology found support only on the STR-ZA810ES.
The Sony STR-ZA810ES has 6/2 HDMI inputs/outputs versus 5/1 HDMI connectors of the Yamaha RX-V475. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the STR-ZA810ES. 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. Receivers do not have a built-in phono stage for connecting a vinyl player. An ECO mode is only available for the RX-V475. The setup assistant will help you configure Sony STR-ZA810ES.
Only the STR-ZA810ES has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the STR-ZA810ES.