Denon AVRX4400H vs Yamaha R-N803BL comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Denon AVRX4400H has 9.2 versus 2.0 for Yamaha R-N803BL. Regarding power, then AVRX4400H has such a W/Ohm ratio - 125/8, 165/6 when R-N803BL has a power of 100/8, 160/4. The THD is 0.05% for the AVRX4400H but 0.01% for the R-N803BL.
Characteristics of digital to analog converter (DAC) are different, 192 KHz/24-bit for AVRX4400H and ESS SABRE (9006AS) 192 KHz/24-bit for the R-N803BL. Only the AVRX4400H 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 Denon AVRX4400H has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver. The AVRX4400H can work with the audio stream from Deezer, TIDAL, Pandora,iHeart Radio, Sirius XM, Sound Cloud, Napster, and the R-N803BL can receive a content from Deezer, TIDAL, Pandora, Sirius XM.
Only the Denon AVRX4400H has support for High dynamic range (HDR). Only the AVRX4400H provides HDMI signal transmission in standby mode. The AVRX4400H can scale the input HDMI signal, unlike the R-N803BL. Dolby Vision technology found support only on the AVRX4400H. Only the AVRX4400H supports HDMI Audio Return Channel (ARC). The HDMI eARC is available only on the AVRX4400H. Of the two receivers in our comparison, HDMI CEC is present in only the AVRX4400H. These compared receivers have a built-in phono stage for connecting a vinyl player. The AVRX4400H supports voice control via Amazon Alexa, Google Assistant, Siri, Josh.AI, and the R-N803BL - Amazon Alexa, Google Assistant. It is also worth noting that the ECO mode is presented in each of the receivers. The setup assistant will help you configure Denon AVRX4400H.
Only the AVRX4400H has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the AVRX4400H.