The Yamaha RX-V677 vs Onkyo TX-NR585 comparison will be extremely helpful for people who want to get a great, powerful receiver with many functions.
AV receivers under review have the same number of channels. In terms of power, there are differences, the RX-V677 has such a ratio W/Ohm - 90/8, 150/4, while the TX-NR585 has a power of 80/8, 170/6. The value of total harmonic distortion is also different, and for the RX-V677 it is 0.09%, but for the TX-NR585 it is 0.08%.
The manufacturer installed different DACs, the RX-V677 received the model Burr-Brown 192 KHz/24-bit, but the TX-NR585 is equipped with AK4458 384 KHz/32-bit. Each of the compared opponents supports Bi-amping. Both Yamaha RX-V677 and Onkyo TX-NR585 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. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Yamaha RX-V677 works with Pandora, Napster, JUKE, but the Onkyo TX-NR585 works with Deezer, TIDAL, Pandora, TuneIn Radio. 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 RX-V677 and the TX-NR585. Video scaling is only possible with the RX-V677. Operation with the Dolby Vision is only possible with the TX-NR585.
The number of HDMI inputs/outputs varies depending on the receiver, the RX-V677 has 6/1, and the TX-NR585 has 7/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the RX-V677 and the TX-NR585. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. RX-V677 and TX-NR585 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-NR585.
Ability to create 2 Multi zones inherent in both AV receivers. There is an ECO mode in RX-V677. The Yamaha RX-V677 and the Onkyo TX-NR585 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the TX-NR585. Only in the TX-NR585 realized a DTS:X surround technology.