Yamaha RX-V675 vs Onkyo TX-8270 – that is a question.
The number of channels for receivers is different - 7.2 versus 2.0, respectively, for devices. In terms of power, there are differences, the RX-V675 has such a ratio W/Ohm - 90/8, 150/4, while the TX-8270 has a power of 160/6. The value of total harmonic distortion is also different, and for the RX-V675 it is 0.09%, but for the TX-8270 it is 0.08%.
The manufacturer installed different DACs, the RX-V675 received the model Burr-Brown 192 KHz/24-bit, but the TX-8270 is equipped with AK4438 384 KHz/32-bit. The Bi-amping function is implemented only in the Yamaha RX-V675. Both Yamaha RX-V675 and Onkyo TX-8270 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-V675 works with Napster, but the Onkyo TX-8270 works with Deezer, TIDAL, TuneIn Radio.
Support for the HDR function can only boast of the TX-8270. The quality of 4K/60Hz signal remains unchanged when transmitting from a source to a TV or projector via HDMI for both receivers. HDMI signal transmission in standby mode can provide only 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 RX-V675 has 6/1, and the TX-8270 has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the RX-V675 and the TX-8270. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. RX-V675 and TX-8270 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-8270.
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 RX-V675. The Onkyo TX-8270 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.