An affordable AV receiver is always a good option to consider, so Yamaha RX-V479BL vs Denon AVR-X1400H comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Yamaha RX-V479BL has 5.1 versus 7.2 for Denon AVR-X1400H. Regarding power, then RX-V479BL has such a W/Ohm ratio - 80/8 when AVR-X1400H has a power of 80/8, 120/6. The THD is 0.09% for the RX-V479BL but 0.08% for the AVR-X1400H.
Competitors' digital to analog converter (DAC) is identical to 192 KHz/24-bit. Only the AVR-X1400H supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Both models have the ability to connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The Yamaha RX-V479BL has support for AirPlay, and its competitor in our comparison - AirPlay, AirPlay 2. Only the AVR-X1400H supports Spotify.
Only the Denon AVR-X1400H has support for High dynamic range (HDR). 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 competitors are not able to scale the HDMI signal. Dolby Vision technology found support only on the AVR-X1400H.
Each receiver has 6/1 HDMI inputs/outputs. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. 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. It is also worth noting that the ECO mode is presented in each of the receivers. Both RX-V479BL and AVR-X1400H can be configured using the Setup assistant.
Only the AVR-X1400H has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the AVR-X1400H.