An affordable AV receiver is always a good option to consider, so Yamaha RX-V483BL vs Onkyo TX-SR393 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Yamaha RX-V483BL has 5.1 versus 5.2 for Onkyo TX-SR393. Regarding power, then RX-V483BL has such a W/Ohm ratio - 80/6 when TX-SR393 has a power of 80/8, 155/6. The THD is 0.09% for the RX-V483BL but 0.08% for the TX-SR393.
Characteristics of digital to analog converter (DAC) are different, Burr-Brown 192 KHz/24-bit for RX-V483BL and AKM 384 KHz/32-bit for the TX-SR393. Only the RX-V483BL supports Bi-amping feature. Sound transmission directly to the amplifier in Pure direct (straight) mode is not implemented in these models.
Only the Yamaha RX-V483BL can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the RX-V483BL 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.
Each receiver has 4/1 HDMI inputs/outputs. 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. Receivers do not have 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-V483BL. Unfortunately, the setup assistant is not available in each of the models.
Only the TX-SR393 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the TX-SR393.