An affordable AV receiver is always a good option to consider, so Marantz AV7703 vs Yamaha RX-V475 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Marantz AV7703 has 11.2 versus 5.1 for Yamaha RX-V475. The THD is 0.08% for the AV7703 but 0.09% for the RX-V475.
Characteristics of digital to analog converter (DAC) are different, 192 KHz/32-bit for AV7703 and Burr-Brown 192 KHz/24-bit for the RX-V475. Only the AV7703 supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. The Marantz AV7703 has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver.
Only the Marantz AV7703 has support for High dynamic range (HDR). 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 AV7703 can scale the input HDMI signal, unlike the RX-V475. Dolby Vision technology found support only on the AV7703.
The Marantz AV7703 has 8/3 HDMI inputs/outputs versus 5/1 HDMI connectors of the Yamaha RX-V475. 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 AV7703 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 Marantz AV7703.
Only the AV7703 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the AV7703.