Having had an opportunity to test Yamaha RX-V671 vs Onkyo TX-NR616, I’d like to share my impression here to facilitate your choice of a new AV receiver.
The number of channels for receivers is different - 7.1 versus 7.2, respectively, for devices. In terms of power, there are differences, the RX-V671 has such a ratio W/Ohm - 90/8, 150/4, while the TX-NR616 has a power of 160/6. The value of total harmonic distortion is also different, and for the RX-V671 it is 0.09%, but for the TX-NR616 it is 0.08%.
Competitive models use the same DAC. Each of the compared opponents supports Bi-amping. Both Yamaha RX-V671 and Onkyo TX-NR616 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with TX-NR616. Each of the receivers has a Bluetooth connector. Support for Apple Music Services not implemented. The TX-NR616 has access to the Spotify service. The number of available streaming services varies for receivers, the Yamaha RX-V671 works with Napster, but the Onkyo TX-NR616 works with Last.fm, AUPEO, Simfy, vTuner.
Oddly enough, the support for the HDR function is not implemented in these units. 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-V671 and the TX-NR616. Each 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 varies depending on the receiver, the RX-V671 has 6/1, and the TX-NR616 has 8/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the RX-V671 and the TX-NR616. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. RX-V671 and TX-NR616 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Yamaha RX-V671.
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 neither AV receiver. None of these units can be properly configured using the setup assistant.
Generally no support for a Dolby Atmos multichannel audio format. A DTS:X surround technology is not supported by devices from our comparison.