Denon AVR-X4500H vs Yamaha R-N803BL comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Denon AVR-X4500H has 9.2 versus 2.0 for Yamaha R-N803BL. Regarding power, then AVR-X4500H 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 AVR-X4500H but 0.01% for the R-N803BL.
Characteristics of digital to analog converter (DAC) are different, AK4458 384 KHz/32-bit for AVR-X4500H and ESS SABRE (9006AS) 192 KHz/24-bit for the R-N803BL. Only the AVR-X4500H 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 AVR-X4500H has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver. The AVR-X4500H can work with the audio stream from Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, and the R-N803BL can receive a content from Deezer, TIDAL, Pandora, Sirius XM. Only the AVR-X4500H provides HDMI signal transmission in standby mode. The AVR-X4500H can scale the input HDMI signal, unlike the R-N803BL. Dolby Vision technology found support only on the AVR-X4500H. Only the AVR-X4500H supports HDMI Audio Return Channel (ARC). The HDMI eARC is available only on the AVR-X4500H. Of the two receivers in our comparison, HDMI CEC is present in only the AVR-X4500H. These compared receivers have a built-in phono stage for connecting a vinyl player. The AVR-X4500H supports voice control via Amazon Alexa, 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 AVR-X4500H.
Only the AVR-X4500H has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the AVR-X4500H.
The Denon AVR-X4500H is better receiver in this comparison. Check Denon AVR-X4500H price