It’s strongly recommended to compare different receivers if you want to choose the best one: Yamaha RX-S602 vs Onkyo TX-NR676.
The number of channels for receivers is different - 5.1 versus 7.2, respectively, for devices. In terms of power, there are differences, the RX-S602 has such a ratio W/Ohm - 80/8, 125/6, while the TX-NR676 has a power of 165/6. 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-NR676 is equipped with AK4458 384 KHz/32-bit. Each of the compared opponents supports Bi-amping. Both Yamaha RX-S602 and Onkyo TX-NR676 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-NR676 works with Deezer, TIDAL, Pandora, TuneIn Radio.
The HDR10 function is present in each of the rivals. 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-S602 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-S602 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-S602 and the TX-NR676. 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-NR676, 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-NR676.
Ability to create 2 Multi zones inherent in both AV receivers. There is an ECO mode in either AV receiver. The Yamaha RX-S602 and the Onkyo TX-NR676 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the TX-NR676. Only in the TX-NR676 realized a DTS:X surround technology.