The present review is aimed to compare two AV receivers - Yamaha RX-V677 vs Yamaha RX-V485BL that are meant to satisfy the needs of cinema and music lovers.
A significant difference between the receivers in the number of channels, Yamaha RX-V677 has 7.2 versus 5.1 for Yamaha RX-V485BL. Regarding power, then RX-V677 has such a W/Ohm ratio - 90/8, 150/4 when RX-V485BL has a power of 80/6. The THD is the same and is 0.09%.
Characteristics of digital to analog converter (DAC) are different, Burr-Brown 192 KHz/24-bit for RX-V677 and Burr-Brown 384 KHz/32-bit for the RX-V485BL. Both the RX-V677 and the RX-V485BL support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. The Yamaha RX-V677 has support for AirPlay, and its competitor in our comparison - AirPlay, AirPlay 2. Spotify can be used on each receiver. Compared AV receivers retain the quality of 4K/60Hz signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. Both rivals can scale the resolution of the incoming HDMI signal. Dolby Vision technology found support only on the RX-V485BL.
The Yamaha RX-V677 has 6/1 HDMI inputs/outputs versus 4/1 HDMI connectors of the Yamaha RX-V485BL. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the RX-V485BL. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. Both models support the standard HDCP 2.2. Receivers do not have a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. It is also worth noting that the ECO mode is presented in each of the receivers. Both RX-V677 and RX-V485BL can be configured using the Setup assistant.
None of the rivals equipped with Dolby Atmos multichannel audio decoder. The receivers do not support the surround sound technology DTS:X.