The Onkyo TX-RZ820 vs Yamaha RX-V675 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 TX-RZ820 has such a ratio W/Ohm - 160/8, while the RX-V675 has a power of 90/8, 150/4. The value of total harmonic distortion is also different, and for the TX-RZ820 it is 0.08%, but for the RX-V675 it is 0.09%.
The manufacturer installed different DACs, the TX-RZ820 received the model AK4458 384 KHz/32-bit, but the RX-V675 is equipped with Burr-Brown 192 KHz/24-bit. Each of the compared opponents supports Bi-amping. Both Onkyo TX-RZ820 and Yamaha RX-V675 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 Onkyo TX-RZ820 works with Deezer, TIDAL, but the Yamaha RX-V675 works with Napster. 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-RZ820 and the RX-V675. Video scaling is only possible with the RX-V675. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs varies depending on the receiver, the TX-RZ820 has 7/2, and the RX-V675 has 6/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the TX-RZ820 and the RX-V675. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. TX-RZ820 and RX-V675 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-RZ820.
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 Onkyo TX-RZ820 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the TX-RZ820. Only in the TX-RZ820 realized a DTS:X surround technology.