It makes sense comparing Denon AVRX4400H vs Sony STRZA5000ES because they both are able to give some premium features.
Considered AV receivers have the same number of channels 9.2. Regarding power, then AVRX4400H has such a W/Ohm ratio - 125/8, 165/6 when STRZA5000ES has a power of 130/8. The THD is 0.05% for the AVRX4400H but 0.09% for the STRZA5000ES. Both the AVRX4400H and the STRZA5000ES 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 AVRX4400H can connect to the Internet via WI-FI. Only the AVRX4400H has Bluetooth support. Only the AVRX4400H 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 Denon AVRX4400H has 8/3 HDMI inputs/outputs versus 6/2 HDMI connectors of the Sony STRZA5000ES. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the AVRX4400H. 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 AVRX4400H has a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 3 Multi-room zones. An ECO mode is only available for the AVRX4400H. Both AVRX4400H and STRZA5000ES can be configured using the Setup assistant.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.