What is better - Onkyo TX-NR555 vs Yamaha RX-V479BL?
The number of channels for receivers is different - 7.2 versus 5.1, respectively, for devices. In terms of power, there are differences, the TX-NR555 has such a ratio W/Ohm - 130/6, while the RX-V479BL has a power of 80/8. The value of total harmonic distortion is also different, and for the TX-NR555 it is 0.08%, but for the RX-V479BL it is 0.09%.
The manufacturer installed different DACs, the TX-NR555 received the model Hi-Grade 384 KHz/32-bit, but the RX-V479BL is equipped with 192 KHz/24-bit. The Bi-amping function is implemented only in the Onkyo TX-NR555. Both Onkyo TX-NR555 and Yamaha RX-V479BL can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. Both devices can work with such Apple Music services: AirPlay. The TX-NR555 has access to the Spotify service.
Support for the HDR function can only boast of the TX-NR555. 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 TX-NR555 and the RX-V479BL. None of the devices can increase the resolution of the incoming video signal. Review participants do not have the Dolby Vision feature.
The number of HDMI inputs/outputs is the same - 6/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the TX-NR555 and the RX-V479BL. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. TX-NR555 and RX-V479BL support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-NR555. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in either AV receiver. The Yamaha RX-V479BL can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the TX-NR555. Only in the TX-NR555 realized a DTS:X surround technology.