It’s strongly recommended to compare different receivers if you want to choose the best one: Sony STR-DH790 vs Yamaha RX-V481BL.
The number of channels for receivers is different - 7.2 versus 5.1, respectively, for devices. In terms of power, there are differences, the STR-DH790 has such a ratio W/Ohm - 90/6, while the RX-V481BL has a power of 80/6. A common feature for devices is the same total harmonic distortion - 0.09%.
The manufacturer installed different DACs, the STR-DH790 received the model 192 KHz/24-bit, but the RX-V481BL is equipped with Burr-Brown 192 KHz/24-bit. Each of the compared opponents supports Bi-amping. Both Sony STR-DH790 and Yamaha RX-V481BL can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with RX-V481BL. Each of the receivers has a Bluetooth connector. The RX-V481BL 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-DH790 and the RX-V481BL. None of the devices can increase the resolution of the incoming video signal. Operation with the Dolby Vision is only possible with the STR-DH790.
The number of HDMI inputs/outputs is the same - 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the STR-DH790. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. STR-DH790 and RX-V481BL support the standard HDCP 2.2. Unlike most receivers, our models do not have a built-in phono stage for connecting a vinyl player. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in RX-V481BL. The Sony STR-DH790 and the Yamaha RX-V481BL can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the STR-DH790. Only in the STR-DH790 realized a DTS:X surround technology.