It’s strongly recommended to compare different receivers if you want to choose the best one: Yamaha RX-V581 vs Onkyo TX-NR676.
AV receivers under review have the same number of channels. In terms of power, there are differences, the RX-V581 has such a ratio W/Ohm - 115/6, while the TX-NR676 has a power of 165/6. The value of total harmonic distortion is also different, and for the RX-V581 it is 0.09%, but for the TX-NR676 it is 0.08%.
The manufacturer installed different DACs, the RX-V581 received the model Burr-Brown 192 KHz/24-bit, but the TX-NR676 is equipped with AK4458 384 KHz/32-bit. Each of the compared opponents supports Bi-amping. Both Yamaha RX-V581 and Onkyo TX-NR676 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-V581 works with Pandora, JUKE, but the Onkyo TX-NR676 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-V581 and the TX-NR676. None of the devices can increase the resolution of the incoming video signal. Operation with the Dolby Vision is only possible with the TX-NR676.
The number of HDMI inputs/outputs varies depending on the receiver, the RX-V581 has 4/1, and the TX-NR676 has 7/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the RX-V581 and the TX-NR676. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. RX-V581 and TX-NR676 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-NR676.
Ability to create 2 Multi zones inherent in both AV receivers. 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-V581 and the Onkyo TX-NR676 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available both models. A DTS:X surround technology is supported by devices from our comparison.