The Sony STRZA1100ES vs Denon AVR-X4100W comparison proves that these receivers have many common features.
Considered AV receivers have the same number of channels 7.2. Regarding power, then STRZA1100ES has such a W/Ohm ratio - 70/8, 90/6 when AVR-X4100W has a power of 125/8, 165/6. The THD is 0.09% for the STRZA1100ES but 0.05% for the AVR-X4100W. Both the STRZA1100ES and the AVR-X4100W support Bi-amping. Each of the AV receivers 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. Only the AVR-X4100W has 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 Sony STRZA1100ES has 5/2 HDMI inputs/outputs versus 8/3 HDMI connectors of the Denon AVR-X4100W. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the STRZA1100ES. 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 STRZA1100ES 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. Both STRZA1100ES and AVR-X4100W can be configured using the Setup assistant.
Both devices have support for Dolby Atmos multichannel audio format. A surround technology DTS:X is supported only by the STRZA1100ES.