Having had an opportunity to test Sony STRZA1100ES vs Denon AVR-X2500H, I’d like to share my impression here to facilitate your choice of a new AV receiver.
AV receivers under review have the same number of channels. In terms of power, there are differences, the STRZA1100ES has such a ratio W/Ohm - 70/8, 90/6, while the AVR-X2500H has a power of 95/8, 125/6. The value of total harmonic distortion is also different, and for the STRZA1100ES it is 0.09%, but for the AVR-X2500H it is 0.08%. Each of the compared opponents supports Bi-amping. Both Sony STRZA1100ES and Denon AVR-X2500H can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with AVR-X2500H. There is a Bluetooth protocol at the AVR-X2500H. The AVR-X2500H has access to the Spotify service.
The HDR10 function is present in each of the rivals. The quality of 4K/60Hz signal remains unchanged when transmitting from a source to a TV or projector via HDMI for both receivers. Signaling over HDMI in standby mode can provide the STRZA1100ES and the AVR-X2500H. Video scaling is only possible with the STRZA1100ES. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs varies depending on the receiver, the STRZA1100ES has 5/2, and the AVR-X2500H has 8/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the STRZA1100ES. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. STRZA1100ES and AVR-X2500H support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Denon AVR-X2500H.
Ability to create 2 Multi zones inherent in both AV receivers. There is an ECO mode in AVR-X2500H. The Sony STRZA1100ES and the Denon AVR-X2500H can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available both models. A DTS:X surround technology is supported by devices from our comparison.