Yamaha RX-S602 vs Onkyo TX-8270 – that is a question.
The number of channels for receivers is different - 5.1 versus 2.0, respectively, for devices. In terms of power, there are differences, the RX-S602 has such a ratio W/Ohm - 80/8 20Hz-20KHz, 125/6 1KHz, while the TX-8270 has a power of 160/6 1KHz. A common feature for devices is the same total harmonic distortion - 0.08%.
The manufacturer installed different DACs, the RX-S602 received the model Burr-Brown 384 KHz/32-bit, but the TX-8270 is equipped with AK4438 384 KHz/32-bit. The Bi-amping function is implemented only in the Yamaha RX-S602. Both Yamaha RX-S602 and Onkyo TX-8270 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
These units have the same Wi-Fi modules. Each of the receivers has a Bluetooth connector. The contenders have differences in the supported services from Apple - AirPlay, AirPlay 2 versus AirPlay respectively. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Yamaha RX-S602 works with Deezer, TIDAL, Pandora, Napster, SiriusXM, Qobuz, but the Onkyo TX-8270 works with Deezer, TIDAL, TuneIn Radio. The quality of 4K 60p 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-S602. None of the devices can increase the resolution of the incoming video signal. Operation with the Dolby Vision is only possible with the TX-8270.
The number of HDMI inputs/outputs is the same - 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the RX-S602 and the TX-8270. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. The RX-S602 has support for the standard HDCP 2.3, compared to the TX-8270, which supports 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. There is an ECO mode in RX-S602. The Yamaha RX-S602 and 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.
The Yamaha RX-S602 is better receiver in this comparison. Check Yamaha RX-S602 price