Sony STR-ZA2100ES vs Yamaha R-N803BL comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Sony STR-ZA2100ES has 7.2 versus 2.0 for Yamaha R-N803BL. Regarding power, then STR-ZA2100ES has such a W/Ohm ratio - 75/8, 95/6 when R-N803BL has a power of 100/8, 160/4. The THD is 0.09% for the STR-ZA2100ES but 0.01% for the R-N803BL. Only the STR-ZA2100ES supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Only the Yamaha R-N803BL can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the R-N803BL supports Spotify. Only the STR-ZA2100ES provides HDMI signal transmission in standby mode. The STR-ZA2100ES can scale the input HDMI signal, unlike the R-N803BL. Dolby Vision technology found support only on the STR-ZA2100ES. Only the STR-ZA2100ES supports HDMI Audio Return Channel (ARC). The HDMI eARC is available only on the STR-ZA2100ES. Of the two receivers in our comparison, HDMI CEC is present in only the STR-ZA2100ES. The R-N803BL has a built-in phono stage for connecting a vinyl player. An ECO mode is only available for the R-N803BL. The setup assistant will help you configure Sony STR-ZA2100ES.
Only the STR-ZA2100ES has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the STR-ZA2100ES.