It makes sense comparing Yamaha AVENTAGE RX-A1080 vs Sony STR-DH590 because they both are able to give some premium features.
A significant difference between the receivers in the number of channels, Yamaha AVENTAGE RX-A1080 has 7.2 versus 5.2 for Sony STR-DH590. Regarding power, then AVENTAGE RX-A1080 has such a W/Ohm ratio - 110/8, 170/4 when STR-DH590 has a power of 145/6. The THD is 0.06% for the AVENTAGE RX-A1080 but 0.09% for the STR-DH590.
Characteristics of digital to analog converter (DAC) are different, ESS SABRE 384 KHz/32-bit for AVENTAGE RX-A1080 and 192 KHz/32-bit for the STR-DH590. 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. Only the AVENTAGE RX-A1080 supports Spotify.
Both AV receivers support HDR10 technology (High dynamic range). 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. The AVENTAGE RX-A1080 can scale the input HDMI signal, unlike the STR-DH590. The HDR standard - Dolby Vision is supported by these receivers.
The Yamaha AVENTAGE RX-A1080 has 8/3 HDMI inputs/outputs versus 4/1 HDMI connectors of the Sony STR-DH590. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the AVENTAGE RX-A1080. 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. The AVENTAGE RX-A1080 has a built-in phono stage for connecting a vinyl player. An ECO mode is only available for the AVENTAGE RX-A1080. 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.