It makes sense comparing Onkyo TX-SR393 vs Yamaha RX-V683BL because they both are able to give some premium features.
A significant difference between the receivers in the number of channels, Onkyo TX-SR393 has 5.2 versus 7.2 for Yamaha RX-V683BL. Regarding power, then TX-SR393 has such a W/Ohm ratio - 80/8, 155/6 when RX-V683BL has a power of 90/8, 150/4. The THD is 0.08% for the TX-SR393 but 0.06% for the RX-V683BL.
Characteristics of digital to analog converter (DAC) are different, AKM 384 KHz/32-bit for TX-SR393 and Burr-Brown 192 KHz/24-bit for the RX-V683BL. Only the RX-V683BL supports Bi-amping feature. The Yamaha RX-V683BL can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Only the Yamaha RX-V683BL can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the RX-V683BL 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 Onkyo TX-SR393 has 4/1 HDMI inputs/outputs versus 6/1 HDMI connectors of the Yamaha RX-V683BL. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. 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 RX-V683BL has a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. A voice control is not available. An ECO mode is only available for the RX-V683BL. The setup assistant will help you configure Yamaha RX-V683BL.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.