The Yamaha RX-V377 vs Yamaha RX-V583 comparison will be extremely helpful for people who want to get a great, powerful receiver with many functions.
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-V377 has such a ratio W/Ohm - 100/8, 135/6, while the RX-V583 has a power of 80/8, 145/6. A common feature for devices is the same total harmonic distortion - 0.09%.
Competitive models use the same DAC. The Bi-amping function is implemented only in the Yamaha RX-V583. Both Yamaha RX-V377 and Yamaha RX-V583 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with RX-V583. There is a Bluetooth protocol at the RX-V583. The RX-V583 has access to the Spotify service. 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-V377 and the RX-V583. Video scaling is only possible with the RX-V583. Operation with the Dolby Vision is only possible with the RX-V583.
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-V377 and the RX-V583. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. The RX-V377 has support for the standard HDCP 2.2, compared to the RX-V583, which supports the standard HDCP 2.3. Unlike most receivers, our models do not have a built-in phono stage for connecting a vinyl player. There is an ECO mode in either AV receiver. The Yamaha RX-V377 and the Yamaha RX-V583 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the RX-V583. Only in the RX-V583 realized a DTS:X surround technology.