Yamaha AVENTAGE RX-A1080 vs Yamaha R-N803BL comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Yamaha AVENTAGE RX-A1080 has 7.2 versus 2.0 for Yamaha R-N803BL. Regarding power, then AVENTAGE RX-A1080 has such a W/Ohm ratio - 110/8, 170/4 when R-N803BL has a power of 100/8, 160/4. The THD is 0.06% for the AVENTAGE RX-A1080 but 0.01% for the R-N803BL.
Characteristics of digital to analog converter (DAC) are different, ESS SABRE 384 KHz/32-bit for AVENTAGE RX-A1080 and ESS SABRE (9006AS) 192 KHz/24-bit for the R-N803BL. Only the AVENTAGE RX-A1080 supports Bi-amping feature. 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 AVENTAGE RX-A1080 has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver. The AVENTAGE RX-A1080 can work with the audio stream from Deezer, TIDAL, Pandora, Sirius XM, Napster, Qobuz, and the R-N803BL can receive a content from Deezer, TIDAL, Pandora, Sirius XM. Only the AVENTAGE RX-A1080 provides HDMI signal transmission in standby mode. The AVENTAGE RX-A1080 can scale the input HDMI signal, unlike the R-N803BL. Dolby Vision technology found support only on the AVENTAGE RX-A1080. Only the AVENTAGE RX-A1080 supports HDMI Audio Return Channel (ARC). The HDMI eARC is available only on the AVENTAGE RX-A1080. Of the two receivers in our comparison, HDMI CEC is present in only the AVENTAGE RX-A1080. These compared receivers have a built-in phono stage for connecting a vinyl player. Supported voice control technologies are identical - 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 Yamaha AVENTAGE RX-A1080.
Only the AVENTAGE RX-A1080 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the AVENTAGE RX-A1080.