What is better - Yamaha RX-V671 vs Yamaha RX-V479BL?
The number of channels for receivers is different - 7.1 versus 5.1, respectively, for devices. In terms of power, there are differences, the RX-V671 has such a ratio W/Ohm - 90/8, 150/4, while the RX-V479BL has a power of 80/8. A common feature for devices is the same total harmonic distortion - 0.09%.
The manufacturer installed different DACs, the RX-V671 received the model Burr-Brown 192 KHz/24-bit, but the RX-V479BL is equipped with 192 KHz/24-bit. The Bi-amping function is implemented only in the Yamaha RX-V671. Both Yamaha RX-V671 and Yamaha RX-V479BL can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with RX-V479BL. Each of the receivers has a Bluetooth connector. Spotify is not available for these receivers.
Oddly enough, the support for the HDR function is not implemented in these units. 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-V671 and the RX-V479BL. Video scaling is only possible with the RX-V671. Review participants do not have the Dolby Vision feature.
The number of HDMI inputs/outputs is the same - 6/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the RX-V671 and the RX-V479BL. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. RX-V671 and RX-V479BL support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Yamaha RX-V671. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in RX-V479BL. The Yamaha RX-V479BL 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.