It makes sense comparing Yamaha RX-V385BL vs Onkyo TX-NR595 because they both are able to give some premium features.
A significant difference between the receivers in the number of channels, Yamaha RX-V385BL has 5.1 versus 7.2 for Onkyo TX-NR595. Regarding power, then RX-V385BL has such a W/Ohm ratio - 70/8, 145/6 when TX-NR595 has a power of 80/8, 170/6. The THD is 0.09% for the RX-V385BL but 0.08% for the TX-NR595.
Characteristics of digital to analog converter (DAC) are different, Burr-Brown 384 KHz/32-bit for RX-V385BL and AKM 384 KHz/32-bit for the TX-NR595. Only the TX-NR595 supports Bi-amping feature. The Onkyo TX-NR595 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Only the Onkyo TX-NR595 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the TX-NR595 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. Both rivals can scale the resolution of the incoming HDMI signal. The HDR standard - Dolby Vision is supported by these receivers.
The Yamaha RX-V385BL has 4/1 HDMI inputs/outputs versus 6/2 HDMI connectors of the Onkyo TX-NR595. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the RX-V385BL. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The RX-V385BL supports the protection of digital content of the standard HDCP 2.3, versus HDCP 2.2 in the TX-NR595. The TX-NR595 has a built-in phono stage for connecting a vinyl player. An ECO mode is only available for the RX-V385BL. The setup assistant will help you configure Onkyo TX-NR595.
Only the TX-NR595 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the TX-NR595.