An affordable AV receiver is always a good option to consider, so Yamaha RX-V685BL vs Onkyo TX-SR393 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Yamaha RX-V685BL has 7.2 versus 5.2 for Onkyo TX-SR393. Regarding power, then RX-V685BL has such a W/Ohm ratio - 90/8, 150/4 when TX-SR393 has a power of 80/8, 155/6. The THD is 0.06% for the RX-V685BL but 0.08% for the TX-SR393.
Characteristics of digital to analog converter (DAC) are different, Burr-Brown 384 KHz/32-bit for RX-V685BL and AKM 384 KHz/32-bit for the TX-SR393. Only the RX-V685BL supports Bi-amping feature. The Yamaha RX-V685BL can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Competitors do not have built-in Spotify service.
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-V685BL has 5/2 HDMI inputs/outputs versus 4/1 HDMI connectors of the Onkyo TX-SR393. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the RX-V685BL. 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-V685BL 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-V685BL. The setup assistant will help you configure Yamaha RX-V685BL.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.