The Onkyo TX-SR393 vs Denon AVR-X4100W comparison proves that these receivers have many common features.
A significant difference between the receivers in the number of channels, Onkyo TX-SR393 has 5.2 versus 7.2 for Denon AVR-X4100W. Regarding power, then TX-SR393 has such a W/Ohm ratio - 80/8, 155/6 when AVR-X4100W has a power of 125/8, 165/6. The THD is 0.08% for the TX-SR393 but 0.05% for the AVR-X4100W.
Characteristics of digital to analog converter (DAC) are different, AKM 384 KHz/32-bit for TX-SR393 and 192 KHz/24-bit for the AVR-X4100W. Only the AVR-X4100W supports Bi-amping feature. The Denon AVR-X4100W can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Only the Denon AVR-X4100W can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the AVR-X4100W supports Spotify. 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 8/3 HDMI connectors of the Denon AVR-X4100W. 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. The AVR-X4100W has a built-in phono stage for connecting a vinyl player.
The TX-SR393 supports 2 Multi-room zones, versus 3 for the AVR-X4100W. A voice control is not available. An ECO mode is only available for the AVR-X4100W. The setup assistant will help you configure Denon AVR-X4100W.
Both devices have support for Dolby Atmos multichannel audio format. A surround technology DTS:X is supported only by the TX-SR393.