Yamaha RX-S602 vs Yamaha RX-V677 – that is a question.
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 RX-V677 has a power of 90/8, 150/4. The value of total harmonic distortion is also different, and for the RX-S602 it is 0.08%, but for the RX-V677 it is 0.09%.
The manufacturer installed different DACs, the RX-S602 received the model Burr-Brown 384 KHz/32-bit, but the RX-V677 is equipped with Burr-Brown 192 KHz/24-bit. Each of the compared opponents supports Bi-amping. Both Yamaha RX-S602 and Yamaha RX-V677 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. 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 Yamaha RX-V677 works with Pandora, Napster, JUKE. 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 RX-V677. Video scaling is only possible with the RX-V677. Review participants do not have the Dolby Vision feature.
The number of HDMI inputs/outputs varies depending on the receiver, the RX-S602 has 4/1, and the RX-V677 has 6/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the RX-S602 and the RX-V677. 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 RX-V677, which supports the standard HDCP 2.2. Unlike most receivers, our models do not have a built-in phono stage for connecting a vinyl player.
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 Yamaha RX-V677 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.